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Piper Cheyenne IIIA, Airplane Maintenance Manual

The Piper Cheyenne IIIA Airplane Maintenance Manual is essential for aircraft owners and mechanics. This comprehensive manual covers maintenance procedures to keep your plane in top condition. Download the manual for free from manualshive.com to access detailed instructions and specifications for proper care and maintenance of your aircraft.

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Summary of Contents for Cheyenne IIIA

Page 1: ...PART NUMBER 761 852 March 10 2004 AIRPLANE MAINTENANCE MANUAL PA 42 720 Advanced Trainer Cheyenne IIIA PIPER AIRCRAFT CORPORATION...

Page 2: ...Published by Technical Publications The New Piper Aircraft Inc 2926 Piper Drive Vero Beach Florida 32960 U S A Member General Aviation Manufacturers Association...

Page 3: ...PIPER AIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL RECORD OF REVISIONS 0 Revision Revision No Date Date Inserted By Revision Revision No Date Date Inserted By PAGE 1 Nov 1 90...

Page 4: ...PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL RECORDOF REVISIONS continued Revision Revision No Date Date Inserted By Revision Revision No Date Date Inserted By PAGE 2 Nov 1 90...

Page 5: ...nd 5 27 761 852A1 April 15 1991 5 23 51 71 91 761 852A2 February 1 1998 5 7 27 30 35 51 56 77 91 761 852A3 March 10 2004 5 NOTE A List of Effective Pages is found at the front of each chapter Basic pu...

Page 6: ...PAGE 2 Mar 10 04 LOG OF REVISIONS PIPER AIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL THIS PAGE INTENTIONALLY BLANK...

Page 7: ...IPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL INTRODUCTION LISTOFEFFECTIVE PAGES CHAPTER SECTION OriginalIssue CHAPTER DATE SECTION PAGE All PAGE DATE Jan10 90 LISTOFEFFECTIVE PAGESan 10 9...

Page 8: ...C PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL INTRODUCTION LIST OFEFFECTIVE PAGES continued CHAPTER CHAPTER SECTION PAGE DATE SECTION P Jan0 9 LIST OF EFFECTIVEPAGES AGE DATE...

Page 9: ...tof SubjectMaterial Application Effectivity Aerofiche IdentifyingRevisedMaterial AlphabeticalIndex Listof EffectivePages SerialNumberExplanation System Chapter IndexGuide Warnings Cautions and Notes S...

Page 10: ...ness andsuitability foruseinPIPER airplane applications Partspurchased fromsources otherthan PIPER eventhough identical inappearance maynothavehadtherequired testsandinspections performed maybediffere...

Page 11: ...ththeindicating section ofthe fuelsystem 3 Unit Subject Theindividual unitswithinasub system section maybeidentified bythethird element ofthestandard numbering system Theelement 01 ofthenumber 28 40 0...

Page 12: ...d margin opposite thechapter section subject pagenumber anddate will indicate thatthetextwasunchanged butthematerial wasrelocated to adifferent page Forpartslistings anindividual codeletter R shallbeu...

Page 13: ...M CHAPTER SUB SYSTEM SECTION TITLE INTRODUCTION 5 6 7 8 TIMELIMITS MAINTENANCE CHECKS 00 10 20 50 DIMENSIONS ANDAREAS 00 LIFTINGANDSHORING 00 10 20 LEVELING ANDWEIGHING 10 20 General TimeLimits Schedu...

Page 14: ...essurization Control HeatingandCooling Temperature Control Moisture AirContaminant Control General DataTransmission AutomaticCalling StaticDischarging Audio VideoMonitoring General DCGeneration Extern...

Page 15: ...ng General Main Indicating 29 30 31 32 ICEAND RAINPROTECTION 00 General 10 Airfoil 20 Air Intakes 30 PitotandStatic 40 Windows Windshields andDoors 60 Propellers Rotors INDICATING RECORDING SYSTEMS 00...

Page 16: ...andTaxiing Aids Independent Position Determining Dependent Position Determining FlightManagement Computing General Crew Passenger General Distribution Indicating General Distribution Indicating 37 51...

Page 17: ...l Horizontal Stabilizers Elevator Vertical Stabilizer Rudder General FlightCompartment Passenger Compartment General Center Wing Ailerons andElevons General Propeller Assembly Controlling 71 POWER PLA...

Page 18: ...tinued SYSTEM CHAPTER SUB SYSTEM SECTION TITLE 76 77 79 91 ENGINECONTROLS 00 10 ENGINEINDICATING 00 10 20 30 OIL 00 10 20 30 General PowerControl General Power Temperature Analyzers General Storage Di...

Page 19: ...ction Manual 50hour P N761820 3 Progressive Inspection Manual 100hour P N761819 4 WiringDiagram Manual BasicElectrical P N761853 5 WiringDiagram Manual Avionics P N761854 M VendorPublications Thefollo...

Page 20: ...40 00111A EFIS 85B4 14 Instruction Book523 CollinsGeneralAviationDivision AvionicsGroup RockwellInternational Corporation CedarRapids Iowa 52498 Bendix King SystemFlightLine KNS300 P N006 5091 01 KNS6...

Page 21: ...mburg 63 WestGermany 40 538 2061 Box 149 S 28101 46 451 80000 8 OXYGENSYSTEM VendorAddress ScottAviation 225ErieStreet Lancaster NewYork14086 FairchildAviationRecorders P O Box3041 Sarasota Florida335...

Page 22: ...90 7 Feb 1 98 8 Nov 1 90 9 Nov 1 90 10 Feb 1 98 11 Nov 1 90 12 Nov 1 90 13 Nov 1 90 14 Nov 1 90 15 Nov 1 90 16 Nov 1 90 17 Nov 1 90 18 Nov 1 90 19 Feb 1 98 20 Nov 1 90 21 Nov 1 90 22 Nov 1 90 23 Feb 1...

Page 23: ...PIPER AIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL PAGE 2 Mar 10 04 5 LIST OF EFFECTIVE PAGES THIS PAGE INTENTIONALLY BLANK...

Page 24: ...4 Cabin and Cockpit Detailed 15 Fuselage Aft and Empennage Detailed 17 Right Wing Routine 18 Landing Gear Routine 19 Special and General Section 19 Inspection Completed Statement 20 Event 1 Inspection...

Page 25: ...1 300 Hours 1 400 Hours 2 500 Hours 2 600 Hours 2 700 Hours 2 1 000 Hours 2 1 200 Hours 3 1 400 Hours 3 1 500 Hours 3 2 000 Hours or Two Years 4 2 800 Hours 4 3 000 Hours 4 3 100 Hours 4 4 500 Hours 4...

Page 26: ...corrosion or lackof lubrication Underthese conditions inspections shouldbeconductedmorefrequently until operatorscansettheirown schedulesbasedonfindings Anownershouldperiodicallycheckwith a PiperCheye...

Page 27: ...he LIMITATIONS section in the Pilot s Operating Handbook for a detailed delineation of the flight limitations of the airplane Component Life Limit Inspection Interval Effectivity Flight Hours Flight H...

Page 28: ...ink or marker with the part number serial number and accumulated life status as defined in 14 CFR Part 43 10 in a manner that does not affect part structural integrity i e no surface deformation such...

Page 29: ...sthat PiperAircraft usesto mailServiceBulletins ServiceLetters and Instructions Iftheaircraftis basedand oroperatedat a differentlocationand orbypersonsotherthan thoserecordedon the aircraftregistrati...

Page 30: ...itedStatesare urgedto subscribeto this servicesincePiper cannotobtainthe addressesofforeignowners ServiceProductSupportManualsand revisionsare availablethroughPiperServiceCenters WARNING WHEN SERVICIN...

Page 31: ...ny changesto this procedure bythe owneror operatormustbe approved bythe localFederalAviationAdministration The inspection frequencymayalsovaryfortrainingaircraftwhosesole purposeisflighttraining andwh...

Page 32: ...pections to be performedand recordedwiththe appropriateEvent Inspection Specialor UnusualConditionsInspections theseinspectionsshouldbe performedinconjunction withthe normalandspecialeventinspectionsw...

Page 33: ...onof equipmentduetimes in relationto the aircraftflight hours 2 Definitions a Inspections Mustbe performed onlyby CertifiedMechanics who arequalifiedon this aircraft utilizingacceptablemethods techniq...

Page 34: ...ce means inspection andthereplacement oftimelifelimited parts k Routine Inspections Consists ofa visual examination orcheckoftheaircraft andits components andsystems without disassembly I Special Insp...

Page 35: ...ppropriate personsfor execution e Toassurethat equipment trainingandsafetyitemsareavailableto properlyandsafely performthe inspection and maintenance program MaintenanceForeman Name PrintorType Signat...

Page 36: ...d itemsneededfor AwayFromStation inspections areon boardthe aircraftwhenrequired d Toassurethatall formsand information relativeto the aircraftinspection and maintenance areforwardedto the maintenance...

Page 37: ...2 Inspectpropellerdeicebootsfor securityof attachmentandcondition 13 Inspectpropellerdeicewiringandjunctionblocksfor security cracks chafingand damage 14 If installed inspectconditionandsecurityof syn...

Page 38: ...NGINEISNOTRUNNING ANYATTEMPT TO MOVEPOWER LEVERSINTOREVERSE POSITION WITHOUTDISCONNECTING PROPELLER PUSH PULL WIREROPECLEVISFROMPROPELLER CONTROLCAM WILLRESULT IN BENDINGORKINKING OF WIRE ROPE I 18 In...

Page 39: ...nspectenginemountsforcracks damageand loosemountingbolts 44 InspectrubberLordmountsfor deterioration andcondition 45 Checksecurity wiringandoperationof bladeanglesensoror betalights ifinstalled 46 Che...

Page 40: ...ition Checkrollersforfreedomof movement andbinding 11 Inspectflaptrackboltsand aileronhingeboltsfor wear securityandcorrosion 12 Inspectallcontrolsurfacebearingsfor attachment wearandfreedomof movemen...

Page 41: ...erriggingandoperation 3 Checkbrakereservoirandbrakelinesfor leaks securityand properfluid levelin reservoir 4 Inspectelectronics installation wire harnessplugs groundbusbar triplexerand radios for con...

Page 42: ...dinspect staticdrainpumps 23 Inspect landing andtaxilights forbroken lenses andsecurity 24 Checkelectrical outside airtemerature probe OAT forcorrosion damage condition of wiringandsecure mounting 25...

Page 43: ...ct oxygen outletsandmasks fordefects corrosion andattachment of masks to outlets 21 Check operation ofoxygen system Referto300 3500 HourSpecial Inspection and Pilot s Operating Handbook 22 Check porta...

Page 44: ...andoperationof crossfeedvalvehandles 18 Checksecurityandoperationof emergency shutoffvalvehandles 19 Checkoperationof recirculation blowers 20 Inspectconditionand operationof heaterducts andair condit...

Page 45: ...nges hornsandattachments for damage securityand operation 12 Inspecthorizontalstabilizerattachments for security damage cracksandcorrosion 13 Inspectelevatorandtab hingeboltsandbearingsfor securityof...

Page 46: ...atesandaccesspanels h RightWing Routine Referto 57 00 00 1 Checksurfaces skins tiptank andfairingsfordamage condition looseor missing rivets 2 Inspectaileronandtrim tab attachments for security damage...

Page 47: ...ssure 13 Check emergencygear extensionpneumaticsystemlines fittings and shuttle valvesfor security leakageanddamage 14 Inspectconditionof up and down lock hooks springsand cablesfor damage binding ope...

Page 48: ...ION COMPLETED I certify that this aircraft has been inspected in accordancewith PiperAircraftCorporation 100 HourProgressiveInspectionEvent1 and is approved for return to service Pertinent details of...

Page 49: ...ScheduledMaintenance continued 5 Event1 continued I InspectionDiscrepancy Sheet Aircraft Time Engine Time Left EngineTime Right WorkOrderNo Date Iem No Discrepancy CorrectiveAction Mechanic Crew Chief...

Page 50: ...f propellerdeicerslipringand brushblockor modularassembly 12 Inspectconditionof propellerdeicebootsandsecurityof attachment 13 Inspectpropellerdeice wiring and junction blocksfor security cracks chafi...

Page 51: ...on system and oil cooler doors CAUTION WHENENGINEISNOTRUNNING ANYATTEMPT TO MOVEPOWER LEVERSINTOREVERSE POSITION WITHOUTDISCONNECTING PROPELLER PUSH PULL WIREROPECLEVISFROMPROPELLER CONTROLCAM WILLRES...

Page 52: ...lyforsecurityand operation ifinstalled 43 Inspectenginemountsfor cracks damageand loosemountingbolts 44 InspectrubberLordmountsfordeterioration and condition 45 Checksecurity wiringand operationof bla...

Page 53: ...ityandcorrosion 12 Inspectall controlsurfacebearingsforattachment wearand freedomof movement 13 Checkoperationof rightfuelshutoffvalveandcrossfeedvalve 14 Inspectwingattachment boltsfor stripealignmen...

Page 54: ...osionandbrokenor loosebolts 6 Checktiresfor properpressure 2 7 Clean and inspectgear legs nose gear fork and axlesfor security damage cracks nicks corrosionandcondition 8 Clean and inspectgear struts...

Page 55: ...ents forsecurity damageandoperation 3 Inspectaileronbalanceweightfordamageand security 4 Inspectflapandflaptracksfor securityof attachment damage conditionandcorrosion 5 Checkthatfueltankscontaincorre...

Page 56: ...ETROLEUM PRODUCTS BEFORE CHECKING OR PERFORMING MAINTENANCE ON ANY COMPONENT OF THE OXYGEN SYSTEM 8 Check oxygen masks for condition and damage that masks are properly connected to outlets 9 Check out...

Page 57: ...SIN 2 Checkventralfindrainholesareopenandfreeof foreignmatter SeelatestPiper ServiceBulletin857 3 Inspectrudder ruddertab elevator elevatortabs hinges boltsandattachments for damage wear securityandop...

Page 58: ...SPECTION COMPLETED I certify that this aircraft has been inspected in accordancewith PiperAircraftCorporation100Hour ProgressiveInspectionEvent2 and is approved for return to service Pertinent details...

Page 59: ...A ScheduledMaintenance continued 6 Event2 continued I InspectionDiscrepancy Sheet Aircraft Time EngineTime Left EngineTime Right Date WorkOrder No Item No Discrepancy CorrectiveAction Mechanic CrewChi...

Page 60: ...ditionServiceBulletinsand MandatoryService Lettershavebeen compliedwith The signaturesareverificationthat the appropriateentrieshavebeen made in the Aircraft and EngineLogbooks Event Inspection Record...

Page 61: ...ertificateinaircraftandproperlydisplayed 5 RadioStationFCCLicensesis inthe aircraftandproperlydisplayed 6 AircraftEquipmentList Weightand Balanceand FAAForm337 if applicable are in the aircraftand inp...

Page 62: ...e Removal Serviced Visual Minimum Cell Banery Capacty Capacity CA CB AVG Charge andWater Consumption Data CellEndof Distilled Water Charge Voltage Addedto Cells Max Cell MinJCell AVG MaxJCell Min Cell...

Page 63: ...ANCE MANUAL A Scheduled Maintenance continued 7 Forms continued d Discrepancy Record Form DISCREPANCY A C HOURS DISCREPANCY RECORD SIGNATURE DATE CORRECTIVE ACTION W O SIGNATUREAND No CERTIFICATE No D...

Page 64: ...duledMaintenance continued 7 Forms continued e ServicePublicationComplianceRecord SERVICE PUBLICATION COMPLIANCE RECORD MANUFACTURER PUBUCATION NUMBER COMPLIANCE DATE A CHOURS W O No SIGNATURE AND CER...

Page 65: ...CE MANUAL A ScheduledMaintenance continued 7 Forms continued f Equipment ChangeRecordForm EQUIPMENT CHANGE RECORD DATE A C HOURS REMOVED PARTNo SERIALNo INSTALLPARTNo SERIALNo SIGNATURE AND CERTIFICAT...

Page 66: ...d 7 Forms continued g FAAAirworthiness DirectivesComplianceRecordForm FAAAIRWORTHINESS DIRECTIVES COMPLIANCERECORD A D A D A C METHOD OF ONE RECUR NEXT DUE WORK NUMBER DATE HOURS COMPLIANCETIME RING D...

Page 67: ...2 720 Advanced Trainer MAINTENANCE MANUAL A ScheduledMaintenance continued 8 OperationalInspectionsandChecks a 100Hour 1 Operationalgroundfunctionaltestof ECS Referto 21 00 00 EFFECTIVITY 040 999 5 20...

Page 68: ...to Piperand the applicableaviationauthority FAA JCAB etc Airplaneserial numberslisted in Chart 1 which no longeroperate underthe listed trainingfacility mustalso revertto the originalstandardinterval...

Page 69: ...ICADBattery 1 Regulardeepcyclesare notnecessary electrolyteleveladjustments willdependupon operatingconditions Adjustlevelinaccordance withSAFTMaintenance Manual P N DC 3 01 78 3176 5A NOTE A batteryl...

Page 70: ...ofthe dangerof oil contamination whichwouldrequirethe oil systemto bedrained flushedand replenishedwithnewoil of an approvedbrand 6 500 Hour a StaticSystem 1 Inspectstaticsystemdrainassembly for corro...

Page 71: ...o straightena hosehavinga bendinit asthiscould resultindamageto the hose Rubberhoseswilltakea permanent setduringextendedserviceperiods Careshouldalsobetakenduringremovaland reinstallation of suchhose...

Page 72: ...verhaulpropellersevery3 000hoursor five 5 years whichevercomesfirst Refer to latestHartzellServiceLetterNo 61 b LandingGear Nose Left Right 2 Replacepivotshaft P N43286 02 16 3 000Hoursorat escalated...

Page 73: ...Steel thin wall and on oxygen cylinders DOT E 8162 or E 8391 composite Perform a functional check and overhaul every 6 years 21 Five 5 Years a EngineFireExtinguisher Bottle Left Right 1 Hydrostatictes...

Page 74: ...thetimeintervalsspecified The unusualincidentinspectionis normally accomplished on a onetimebasisassociatedwith eachcondition Itemsindicatedinthis procedureareguidelinesbasedon pastoperatingexperience...

Page 75: ...sion visibility andcleanliness 3 Operation in HighSaltor HumidityEnvironment Item Inspection Fuselage Empennage Removefloorpanelsand exterior and Wings accessplates inspectfor corrosion LandingGear In...

Page 76: ...andoverheating Inspectfor damage cracksand corrosion Inspectforproperattachment Inspection Interval 100Hours 100Hours Daily 100Hours Daily 100Hours 100Hours 4 OperationinExtremeCold Item Inspection Hy...

Page 77: ...Maintenance Manual Chapter72 Table603 Propelleroverspeed of morethan10 Referto latestHartzellServiceLetter Immediately followingincident Removeand overhaulbefore returnto service EngineMountand Attach...

Page 78: ...elyto determinethe extentof damage LandingGearStruts Wheels Tires Brakes WheelWellsand Landing Gearattachpoints Cracks signsof overstress deformation looseor damaged trunnionmounts Axlesforcracks bend...

Page 79: ...t landing Nacelles forbuckling orfuelleaks InspectionInterval Hardoroverweight landing severe turbulence Hardoroverweight landing severe turbulence Fuselage Empennage Looseormissingrivets dooralignmen...

Page 80: ...EFFECTIVITY 6 CONTENTS 6 00 00 6 00 00 6 00 00 6 00 00 6 00 00 6 00 00 6 00 00 6 00 00 6 00 00 6 00 00 PAGE 1 1 1 2 3 4 5 6 7 8 9 10 CHAPTER DATE SECTION PAGE DATE Jan 10 90 Jan 10 90 Jan 10 90 Jan 10...

Page 81: ...CE MANUAL CHAPTER 6 DIMENSIONS AND AREAS TABLE OF CONTENTS CHAPTER 6 00 00 SUBJECT PAGE General Station Reference LeadingParticularsand PrincipalDimensions Accessand InspectionProvisions 1 2 5 6 EFFEC...

Page 82: ...incipal dimensionsare listedinChart 1 Theairplaneserial numberis locatedon the Manufacturers Aircraft Association MAA plate whichis locatedbelowandto the rightof the cabindoor The engineserial numberp...

Page 83: ...uttocklineandwaterlinedesignations is frequentlyusedinthis manual Fuselagestations F S buttocklines B L andwaaterlines W L arereferencepointsmeasuredby inchesinthe verticalor horizontaldirectionfroma...

Page 84: ...PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL B StationReferences continued WING STATIONS StationReferences Figure 2 Sheet2 of 3 EFFECTIVITY 040 999 6 00 00 PAGE 3 6 00 00 Jan 10 90...

Page 85: ...MAINTENANCE MANUAL B StationReferences continued HORIZONTAL STABILIZER STATIONS 0 00 98 33 30 58 77 100 09 NACELLESTATIONS STA STA 28 17 66 11 O84 03 10 38 5 TA 105 StationReferences Figure 2 Sheet3 o...

Page 86: ...o ServiceBulletinBook Section3026522 72 1 Service BulletinNo 13001 Latest Revision 2 3 Gal Manufacturer Type Hub Blade Diameter Inches OverspeedGovernorModel FUEL SYSTEM CAPACITY Hartzell ConstantSpee...

Page 87: ...fthe fuselage refer to51 00 00 todetermine thesealing requirements Gainaccess to floorpanelattachment screws byremoving seatsandcarpeting Toenteraftsection of fuselage remove access panelsoneitherside...

Page 88: ...TENANCE MANUAL D Access and Inspection Provisions continued 23 25 28 30 31 57 58 4645 4238 4137 5352 5250 49 44 43 40 39 36 34 NOTE Calloutsfor Figure 4 canbe foundon 6 00 00Page8 AccessPlatesand Pane...

Page 89: ...8 FUELQUANTITYSENSOR 29 INSPECTION ACCESS 30 INSPECTION ACCESS 31 FLUXDETECTOR 32 FUELVENTLINEINTERCONNECT TIP TANKVENT FLOATVALVE 33 ACCESSTO FUELLINESAND TIPTANKSTRAINERSCREEN 34 STROBELIGHTTRANSFOR...

Page 90: ...D AccessandInspectionProvisions continued 64 65 n n 73 76 74 75 7877 EXTERNAL INTERNAL 80 81 NOTE Call outsfor Figure5 can be foundon 6 00 00Page10 AccessPlatesand Panels Fuselage and Stabilizer Figu...

Page 91: ...ATTERY 66 ANTENNAAND CABLE 67 RUDDERTRIM 68 DINITROL SPRAYACCESS 69 RUDDERSECTORCONTROLCABLES 70 NOSEBAGGAGECOMPARTMENT OXYGENBOTTLES ECUGROUNDCOOLINGFANAND ELECTRIC CONTROLPANELS 71 BRAKERESERVOIR FI...

Page 92: ...ER 7 LIST OF EFFECTIVE PAGES CHAPTER SECTION 7 EFFECTIVITY 7 CONTENTS 7 10 00 7 10 00 7 20 00 7 20 00 7 20 00 CHAPTER DATE SECTION PAGE 1 1 1 2 1 2 3 PAGE DATE Feb 1 98 Jan 10 90 Feb 1 98 Feb 1 98 Jan...

Page 93: ...RAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL CHAPTER7 LIFTINGAND SHORING TABLEOF CONTENTS SUBJECT CHAPTER PAGE General Jacking 7 10 00 7 20 00 1 1 Shoring 1 EFFECTIVITY 040 999 CONTENTS an...

Page 94: ...ie downring Figure 1 Adjustable25 inchtripodjacksmustbe used Eightton capacitywingjacksandtwo toncapacitynoseandtail jacksarerecommended forthe followingprocedure 1 Mounttailjackingpad shownin Figure...

Page 95: ...continued I TOOL P N 72246 10 DISTANCES TOJACKPOINTS Groundto Structure JACKPOINT AND DISTANCES WHENSTRUTS AT STRUTAFFECTED MIN EXTENSION MAX COLLAPSED WING MAIN G NOSE NOSE G 51 IN 44IN 32 IN 25 IN J...

Page 96: ...wnin Figure7 3 Thefuselageis supportedbya singleblockat FuselageStation F S 93 0 A pairof blocksat F S 297 38and 310 0aremountedtogetheron a transversepivotat F S 304 0to equallydistribute weightof th...

Page 97: ...OUR BOARDS FUSELAGE SKINCONTOUR CENTERLINE OF AIRPLANE FUSELAGE SKINCONTOUR CENTERLINE OFAIRPLAN FUSELAGE STATION 93 0 FUSELAGE SKINCONTOUR FUSELAGE STATION 297 38 CENTERLINE OFAIRPLANE FUSELAGE STATI...

Page 98: ...aircraft a NOTTO EXCEED45 138 50 13 81 F S FS GUIDEWIRE 4000 GUIDEWIRE PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Shoring continued The centerlinelocations loadson andstrapwidthsare...

Page 99: ...dTrainer MAINTENANCE MANUAL CHAPTER8 LIST OF EFFECTIVE PAGES CHAPTER SECTION 8 EFFECTIVITY 8 CONTENTS 8 10 00 8 20 00 CHAPTER DATE SECTION PAGE 1 1 1 1 PAGE DATE Jan 10 90 Jan 10 90 Jan 10 90 Jan 10 9...

Page 100: ...IRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL SUBJECT Weighing CHAPTER 8 LEVELING AND WEIGHING TABLE OF CONTENTS CHAPTER 8 10 00 8 20 00 PAGE 1 Leveling 1 EFFECTIVITY 040 999 CONTENTS PAG 1 Ja...

Page 101: ...ositiona scaleand rampin frontof allthreewheels 2 Securescalesfrom rollingforwardand towairplaneup ontoscales Referto 9 10 00 3 Removerampsto avoidinterference withscales 4 Toweighor balanceairplane l...

Page 102: ...ne forweighing orrigging proceed asfollows Tolevelairplane longitudinally withdraw toolattachment screws fromrightsideof aircraft atFuselage Station87 5and66 5 approximately Place aircraft leveling to...

Page 103: ...MAINTENANCE MANUAL CHAPTER 9 LIST OF EFFECTIVE PAGES CHAPTER SECTION 9 EFFECTIVITY 9 CONTENTS 9 00 00 9 10 00 9 20 00 CHAPTER DATE SECTION PAGE PAGE DATE 1 1 1 1 1 Jan 10 90 Jan 10 90 Jan 10 90 Jan 10...

Page 104: ...RAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL CHAPTER 9 TOWING AND TAXIING TABLE OF CONTENTS CHAPTER 9 00 00 9 10 00 9 20 00 PAGE General 1 Towing 1 Taxiing 1 EFFECTIVITY 040 999 CONTENTS PAG...

Page 105: ...ngairplane groundpersonnelmustbe informedbya qualifiedpilotor other personnelabouttow turninglimitsof nosegear enginestartingand shutdownprocedures and any othersystemfunctionsrequiredto properlyandsa...

Page 106: ...reusedaspartofthenosegearfork Topulltheairplane onahardlevel surface approximately 100pounds of pullisrequired to startitsroll andapproximately 60pounds to maintain roll Whentowing linesarenecessary l...

Page 107: ...in lowpitchandhighrpmsetting Checkfor evenpropreversing 3 Whiletaxiing makeslightturnsto determinethe effectiveness of the steering 4 Checkwingclearancewhentaxiingnearbuildingsor otherstationaryobject...

Page 108: ...iner MAINTENANCE MANUAL CHAPTER 10 LIST OF EFFECTIVE PAGES CHAPTER SECTION 10 EFFECTIVITY 10 CONTENTS 10 10 00 10 20 00 PAGE 1 1 1 1 CHAPTER DATE SECTION PAGE DATE Jan 10 90 Jan 10 90 Jan 10 90 Jan 10...

Page 109: ...R AIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL CHAPTER 10 PARKING AND MOORING TABLE OF CONTENTS CHAPTER 10 10 00 SUBJECT PAGE Parking 1 10 20 00 Mooring 1 EFFECTIVITY 040 999 CONTENTS Jan 10...

Page 110: ...nparking airplane headitintothewindifpossible CAUTION Usecarewhensetting brakes thatareveryhotduringcoldweather Extreme heator accumulated moisture canfreezebrakes Priorto setting brakes ifeitherofthe...

Page 111: ...NOTE Additional preparations forhigh windsinclude using tie down ropes fromthelanding gear forksandsecuring therudder 3 Secure tie down ropes to wingtie down ringsandtailskidatapproximately 45degrees...

Page 112: ...AGES CHAPTER SECTION 11 EFFECTIVITY 11 CONTENTS 11 20 00 11 20 00 11 20 00 11 20 00 11 20 00 11 20 00 11 20 00 PAGE 1 1 1 2 3 4 5 6 7 CHAPTER DATE SECTION PAGE DATE Jan 10 90 Jan 10 90 Jan 10 90 Jan 1...

Page 113: ...AFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL CHAPTER 11 REQUIRED PLACARDS TABLE OF CONTENTS CHAPTER 11 20 00 SUBJECT ExteriorPlacardsand Markings PAGE 1 EFFECTIVITY 040 999 CONTENTS PAGE1 CONTENTS...

Page 114: ...heairplane itis important toinclude theairplane serial number inanycorrespondence to PiperAircraft Corporation Asrequired interior placards andmarkings arelistedinSection II Limitations ofthePilot s O...

Page 115: ...d Trainer MAINTENANCE MANUAL A Exterior Placards andMarkings continued 5 C 4 4 6 7 7 TOPVIEW 19 17 18 9 16 14 0 15 SIDEVIEW 12 13 Exterior Placards andDecals Figure1 Sheet 1of6 EFFECTIVITY 040 999 Jan...

Page 116: ...0 AdvancedTrainer MAINTENANCE MANUAL A ExteriorPlacardsand Markings continued 20 22 20 24 21 25 20 23 BOTTOMVIEW FRONTVIEW ExteriorPlacardsand Decals Figure 1 Sheet2 of 6 EFFECTIVITY 040 999 11 20 00...

Page 117: ...NEMERGENCY PLACARD 3 ENGINEOILSPECIFICATION DO NOTMIX DIFFERENTBRANDS OILCAPACITY 9 2 QTS DO NOTOVERFILL FILLWITHAPPROVEDOILTO MAXIMUM MARKON DIPSTICK SEE CURRENTISSUE OF UNITEDAIRCRAFTOF CANADALTD EN...

Page 118: ...ALTERNATEFUEL NOSTEP PLACARD 7 PLACARD 6 TIE DOWNONLY NO JACKING DO NOT PUSH PLACARD 8 PLACARD 9 PIPER PC MANUFACTUREDBY PIPERAIRCRAFT CORPORATION VERO BEACH FLORIDA MODEL SERIAL NO PLATENO PIPER PART...

Page 119: ...GWITHMIL H 5606 RED HYDRAULIC FLUID WITH NOLOADONSTRUT INFLATE TO 435psi PLACARD14 INSTRUCTIONS FORSERVICE SEEMAINTENANCE MANUALFOR SERVICINGWITH MIL H 5606 RED HYDRAULIC FLUID WITH NOLOADONSTRUT INFL...

Page 120: ...60 70 80 100 120 PSIG 1960 2000 2035 2110 2185 FUNCTIONAL TESTPORT SEESERVICEMANUAL FORINSRUCTIONS WARNING COMPRESSED GAS PLACARD 21 FUELSUMP DRAIN PLACARD 22 OXYGENSYSTEM OVERPRESSURE DISCHARGEDISC...

Page 121: ...3 Jan 10 90 12 10 00 4 Jan 10 90 12 10 00 5 Jan 10 90 12 10 00 6 Jan 10 90 12 10 00 7 Jan 10 90 12 10 00 8 Jan 10 90 12 10 00 9 Jan 10 90 12 10 00 10 Jan 10 90 12 10 00 11 Jan 10 90 12 10 00 12 Jan 10...

Page 122: ...2 FillingFuelCells 2 Jet FuelAdditives 2 MIL 1 27686 JetFuelAnti IcingInhibitors 3 BioborJF Biocide 3 DrainingMoistureFromFuelSystem 4 DrainingFuelSystem Complete 4 ProcedureForRemovingBiologicalFuelC...

Page 123: ...dations for ChangingOil OxygenSystem OxygenSystemSafetyPrecautions FillingOxygenCylinder 12 20 00 13 13 13 14 1 1 1 1 2 ScheduledServicing AirframeLubrication Applicationof Grease Applicationof Oil Lu...

Page 124: ...CAUSEDEPOSITS ONCOMPRESSOR BLADES CAUTION BECAREFULWHENWASHING EXTERIOR OF FCU DONOTALLOWWASH SOLUTIONTO ENTERVENTHOLESOF FCU WHICHCOULDGIVEFALSE INDICATION OF FUELPUMPLEAK CAUTION OBSERVESTARTER OPE...

Page 125: ...waxon leadingsurfaceswill reducethe abrasionproblemsintheseareas Referto surfacede icecleaningprocedures 3 CleaningWindshieldand Windows CAUTION USEONLYWATERANDMILDSOAPWHENCLEANING THE HEATED WINDSHI...

Page 126: ...g the followingtechniques aresuggested e Water based stainssuchs ketchup milk icecream coffee 1 Wipethe stainwitha clothwetwithwatercontaininga detergentor ammonia 4fluid ouncesof ammonia to onegallon...

Page 127: ...andwater solution Incold weather washthe bootswiththe airplaneinsidea warmhangarif possible Ifthe cleaning is to be doneoutdoors heatthe soapandwatersolutionbeforetakingitout to the airplane If diffic...

Page 128: ...NDCAP LEFTENGINE 15 FUELFILTER 16 NACELLEFUELFILL LEFTENGINE 17 HYDRAULIC FILTER 18 OIL DRAIN LEFT ENGINE INBOARD 19 ENGINE OIL FILTER INBOARD 20 MAINFUELTANKDRAIN RIGHT LEFT 21 OXYGENPRESSURE GAUGE 2...

Page 129: ...ONNECTSTATICGROUNDCABLEFROMREFUELER TO AIRPLANE KEEPALLGROUNDING CONNECTIONS CLEANANDCORROSIONFREE Thefuel cellsin eachwing arefilledthroughwingfillercap Optionalnacellefuelcellscontain individualfill...

Page 130: ...undis an extremelyefficientbiocidalagentandis solubleinthe fuelaswell aswater BioborJF dispersesthroughout the entirefuel systemto eventhe mostremoteareassoonafterintroduction into the fuelsystem This...

Page 131: ...rneckforoptional systems Thefuelisdrained fromfuelfilterbowlsbyactivating individual filterdrains Eachwingisdrained separately providing crossfeed valvesareinoffposition 1 Procedure ForRemoving Biolog...

Page 132: ...htgallonsof aviationgasolineto affectedsides c Pullall circuitbreakersexceptthosecontrollingfuelboostpump d Placemasterswitchinon positionand actuateboostpump e Afterpumpingtwo gallonsof aviationgasol...

Page 133: ...checkedperiodicallyper instructions given in32 40 00 L DrainingBrakeSystem Todrainbrakesystem connecthoseto bleederfittingon brakehousing Placeother hoseend in suitablecontainer Openbleedervalveand s...

Page 134: ...lvecore if applicable 9 Inflateoleostrutsaccordingto information in Figure12 2 10 Tightenair valve if applicable NOTE Foraccurateoleostrutinflation the aircraftmustbeplacedon jackswiththe weightof the...

Page 135: ...her24 hours thencheckpressure Itwill probablybe withinspecs 2 Makesurethat initialinflationisto recommended operatingpressureto ensurefull tire growth 3 It is normalfor tubelesstiresto showa smallamou...

Page 136: ...ngeperiodareconsidered providedoil is monitoredbyspectrometric oil analysisanda writtenrequestis submitted to Pratt WhitneyCanadaLimitedServiceDepartment Whenoperationresultsinfrequentcold soakingat a...

Page 137: ...ector send engineto overhaulfacilityfor inspection c If smallamountof fuzz poweredmaterial exists cleandetectorand reinstall Recheckfor continuityafter 10hoursof operation d If sameamountof fuzz isfou...

Page 138: ...CAUTION PLUGBOTHENDSOF FILTERELEMENTBEFORESUBMERGING INVARSOL CLEANER THEELEMENTMUSTNEVERBE ULTRASONICALLY CLEANED PRESSUREFLUSHED ORDRIEDWITHCOMPRESSED AIR CAUSINGDAMAGE TO FILTERMEDIA Oilfilter elem...

Page 139: ...tallfiltercoverand securewithfour plainwashersand self lockingnuts Tightennutsand torqueto 24 36 inch pounds 13 Cleandualdriveoil filterevery100hours Plug CleaningTank NOTE Electrosonic CleanerTankmay...

Page 140: ...ir C5 AHighTemperature Anti SeizeCompound NOTE Lubricate enginefittingsonlywithfluid containedinparticularlines Y OxygenSystem Breathingsystemoxygenisfurnished from a stationarycylinderinthe aft secti...

Page 141: ...thanall others 2 Openvalveonlyon storagecylinderwithlowestpressure Whenindicatedpressureon airplaneoxygengaugeandcharginggaugeis equal closestoragecylindervalve Proceedto storagecylinderwithnexthigher...

Page 142: ...110 120 130 Filling Pressures Psig 1650 1700 1725 1775 1825 1875 1925 1975 2000 2050 2100 2150 2200 2250 NOTE Pressuresarenotexact but accurateenoughfor workingpressuresbetween1800to 2400 psigcylinde...

Page 143: ...arordamage to bearing surfaces 2 Applicationof Grease Whenlubricatingbearingsandbearingsurfaceswitha greasegun ensuregun isfilledwith new cleangreasespecifiedfor the particular applicationbeforeapplyi...

Page 144: ...SPECIALINSTRUCTIONS 1 Cleanexteriorof bearingsandbushingswithdrysolventbeforerelubricating 2 Disassemble oil coolerdoor ice protection transmission andscrews Trimscrews and wheel bearings clean with d...

Page 145: ...RDOWNLOCKANDUP LOCKHOOKS GEARTORQUE LINKFITTINGS RIGHTANDLEFT MIL G81322 6 GEARSIDEBRACELINK BUSHING ANDHOUSING BUSHING MAINGEARDRAG LINK ASSY TORQUELINE ASSY RIGHT ANDLEFT MIL G 83122 7 GEARCONTROL R...

Page 146: ...RLINK 7 WHEELBEARINGS MIL H 5606 MIL L 7870 MIL L 7870 MIL L 7870 MIL L 7870 MIL G 23827 MIL G 7711A MIL G 3545C MIL G 7711A MIL G 23827 MIL G 7711A MIL G 23827 MIL G 7711A MOLYKOTE NO MIL L 7870 FREQ...

Page 147: ...870 7 FLAPTRANSMISSION PIVOTBOLTS ANDSENDER ARM MIL L 7870 8 FLAPTRACKS RIGHT ANDLEFT ALLPURPOSE SLIPSPRAY DUPONT NO 6611 9 FLAPTRACKROLLERS RIGHT ANDLEFT MIL L 7870 10 AILERONBELLCRANK CABLEENDS PIVO...

Page 148: ...cedTrainer MAINTENANCE MANUAL B LubricationCharts continued CHART 4 LUBRICATIONCHART CONTROLSYSTEM Sheet2 of 3 View A View B 13 View E 14 View F Control System Figure303 Sheet 2of3 EFFECTIVITY 040 999...

Page 149: ...PONENT LUBRICANT 1 AILERON BELLCRANK ASSEMBLY BUSHING MIL L 7870 2 CONTROLWHEEL CHAIN VERTICAL ANDHORIZONTAL MIL L 7870 3 RUDDER PEDALS TORQUE TUBEBEARINGS ANDBLOCK CONTROL CABLEENDS BRAKE CYLINDER EN...

Page 150: ...Linkage Figure 304 PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL B LubricationCharts continued CHART 5 LUBRICATION CHART POWERPLANT PROPELLER REVERSING LINKAGE COMPONENT 1 ZERKFITTINGS B...

Page 151: ...OOLER EXHAUST DOORHINGE MIL L 7870 100HRS 5 ICEDEFLECTOR DOOR HINGE MIL L 7870 100HRS 6 BYPASS DOORHINGE MIL L 7870 100HRS 7 BEARING BLOCKS MIL G 23827 100HRS 8 TRANSMISSION SCREW MIL G 23827 500HRS 9...

Page 152: ...NGES ANDSTEPMECHANISM 2 CARGODOORLATCHANDHINGES 3 NOSECONEANDFORWARD BAGGAGE DOORHINGES ANDLATCHES 4 NACELLELOCKER ANDENGINE COWLDOORLATCHANDHINGES 5 SEATTRACKS ALL LUBRICANT MIL L 7870 MIL L 7870 MIL...

Page 153: ...nanceManual P N3021442 Chapter70 StandardPractices GeneralTorqueRecommendations page204 Specificaccessoriesare a Tachgenerators b Hydraulicpumps fuel pump Do notapplylubricantto thefollowingaccessorie...

Page 154: ...0 EFFECTIVITY 20 CONTENTS 20 00 00 20 00 00 20 00 00 20 00 00 20 00 00 20 00 00 20 00 00 20 00 00 CHAPTER DATE SECTION PAGE 1 1 1 2 3 4 5 6 7 8 PAGE DATE Jan 10 90 Jan 10 90 Jan10 90 Jan 10 90 Jan 10...

Page 155: ...tandardPractices Airframe TorqueWrenches FlarelessTubeAssemblies CorrosionInhibitingCompound ApplicationSafety ApplicationTips AccessLocations Elevator AccessLocations Wingand FuelCellArea AccessLocat...

Page 156: ...ecommended Somewrenchesarequitesensitiveto the waytheyare supportedduringatighteningoperation Anyinstructions furnishedbythe manufacturer mustbe followed 2 FlaredTubeAssemblies Whenanyfittingcontainin...

Page 157: ...to supplementthe corrosion protectionof primers sealants etc CAUTION TO ENSUREPROPERAPPLICATION MAINTENANCE PERSONNEL MUST THOROUGHLY FAMILIARIZE THEMSELVES WITHTHEINFORMATION AND PROCEDURES FOUNDINTH...

Page 158: ...poundbeforecomponents suchas radios systems rigging lines wiring etc have beeninstalled f Applycompoundto joints faying surfaces fastenersandanyothermetalsurfacesof the interiorof the aircraftstructur...

Page 159: ...anced Trainer MAINTENANCE MANUAL C CorrosionInhibitingCompound continued 3 AccessLocations ELEVATOR TRIMTAB ELEVATOR CorrosionInhibitingCompound AccessLocations Elevator Figure 1 EFFECTIVITY 040 999 P...

Page 160: ...ACCESS THROUGH PANELS ON CONTROL SURFACE RECESS AREA ACCESS MAIN WING INTERIOR THROUGH INSPECTION PANELS MAINFUEL CELLLINER AFT INBOARD ACCESS THROUGHPANELSON TOP FUELCELLLINER OF WING REMOVEFUELBLADD...

Page 161: ...d Trainer MAINTENANCE MANUAL C CorrosionInhibitingCompound continued 3 Access Locations continued AILERON TRIM TAB AILERON CorrosionInhibitingCompoundAccessLocations WingFlapand Aileron Figure 3 EFFEC...

Page 162: ...ionInhibitingCompound continued 3 AccessLocations continued ACCESS FROM UNDERNEATH NACELLE NACELLE BULKHEAD ASSEMBLY REMOVE INTERIOR ASNECESSARY NACELLE FLOOR PAN CorrosionInhibitingCompound AccessLoc...

Page 163: ...MAINTENANCE MANUAL C CorrosionInhibitingCompound continued 3 AccessLocations continued RUDDER TRIMTAB RUDDER CorrosionInhibitingCompoundAccessLocations Rudderand RudderTrimTab Figure 5 EFFECTIVITY 04...

Page 164: ...90 21 30 00 7 Jan 10 90 21 30 00 8 Jan 10 90 21 30 00 9 Jan 10 90 21 30 00 10 Jan 10 90 21 30 00 11 Jan 10 90 21 30 00 12 Jan 10 90 21 30 00 13 Jan 10 90 21 30 00 14 Jan 10 90 21 30 00 15 Jan 10 90 21...

Page 165: ...19 Pressurization SystemFlightCheck 20 AbsolutePressureRegulatorRemoval 24 AbsolutePressureRegulatorInstallation 24 Outflowand orSafetyValveRemoval 25 Outflowand orSafetyValveInstallation 25 Outflowan...

Page 166: ...alof DuctTemperature Sensor Installationof DuctTemperature Sensor Removalof CabinTemperature Sensorand Controller Installationof CabinTemperature Sensorand Controller 1 1 1 1 1 21 70 00 Moisture AirCo...

Page 167: ...olthe bleedair supplyto the auxiliarysystembelow 250 F priorto enteringthefueltankareaaft of the firewall A bleedair overtemperature switch installedinthe bleedair ductdownstream of the intercooler cl...

Page 168: ...edairfromthat enginebyusingthe ON OFFswitchonthe overheadengine switchpanel 2 Ifthe lightremainson aftershuttingoffthe ECUbleedair the 425 Fswitchcouldhavecausedthe lightto illuminate Sincethis air ca...

Page 169: ...R CREWANDPASSENGER OVERHEAD AIROUTLET COLDAIR FROM ECS VALVE WINDSHIELD DEFOG CONTROL VALVE SIDEWINDOW DEFOG OUTLET LJ COLDAIR AAIR DIST SELECTOR OVHD FANS OFF DEFROSTER MAYBESELECTED ON OR OFF CabinA...

Page 170: ...EAD AIROUTLET COLD AIR CREWFOOT WARMER FROM ECS WINDSHIELD DEFOG CONTROL VALVE SIDEWINDOW DEFOG OUTLET WARMAIR AIRDIST SELECTOR FLOOR RECIRCULATED AIR WITHFANS LO OR HI DEFROSTER MAYBESELECTED ON OR O...

Page 171: ...7 Defog Duct 8 SideWindowDefogOutlet 9 OverheadAir Outlets 10 DefogOutlet 11 12 13 14 15 16 17 18 19 20 Footwarmer Plenum CrewSide Outlet FilteredRecirculated Air Inlet CabinAir Lever WindshieldDefogL...

Page 172: ...osition sliderubbercuffsoverendsof fan b Connectelectricalleadsto fan motor c Tightenclampssecuringfan in position d Replaceaccesspanelremovedfromrightsideof nosesection e Replacepartitionremovedfromb...

Page 173: ...Y bypassesthesafetyswitchon the leftmainlandinggearand q sensorsystems whichpreventsthe cabinfrompressurizing on the ground The normalpositionis CABINPRESS whichallowsthe systemto pressurizeaftertakeo...

Page 174: ...al Remedy Replacefilterandcheck orifice Cleanfilterand check orificeon controller Removeandreplaceisobaric valve Remove andreplace safety valve Removeandreplace controller Remove andreplace switch Rep...

Page 175: ...itude Lowaircraftvacuumsupply Checkaircraftvacuum supply Minorleakintubebetween controllerandvolumetank or involumetank Minorleakintubebetween controllerand isobaricvalve or inisobaricvalve Minorleak...

Page 176: ...notconnectedon isobaricvalveandsafety valve Securely connect orremove blockage fromthetruestatic atmosphere tubeonisobaric valveandsafety valve Loose ordamaged pneumatic tubing fromport 1 of safetyan...

Page 177: ...Cabinpressurewill not Dumpvalvepartiallyopen Closevalve adjustvalve maintaincontrolsetting controlcables Defective isobaric control Remove andreplace valve valve Defectivesafetyvalve Removeand replac...

Page 178: ...the openposition Switchor switchesindoor frameout of adjustment Defectivepressureswitch Shortto ground Cabindoor unsafelight Circuitbreakeropen will notcomeon Brokenwire or loose connection Nopressure...

Page 179: ...COALESCER AMBIENT PRESSURE RATE PRESSURE AIRCRAFT VACUUM PRESSURE TRUE STATIC PRESSURE PRESSURE FILTER SOLENOID AIRVALVE CABINRATE CONTROL SELECTOR KNOB FILTER CONTROL CHAMBER PORT PORT 1 ABSOLUTE PRE...

Page 180: ...ir Switch BLEED AIR PressSwitchAutofeather BLEEDAIR SHUTOFF P3 13 PSI SHUTOFF VALVE P25 37 PSI VA ON OFF Solenoid BleedAir ON OFF HI LO Solenoid ToECU Valve 425 475 F 475 BleedAirHotWarning Emergency...

Page 181: ...5 PSI SHUTOFF VALVE S AUX VOLUME TANK REGULATOR VALVE REGULATED UNREGULATED SUCTION SUCTION TO TO VACUUM EJECTOR RELIEF SOLENOID CONTROLLED SUCTION TO ABSOLUTE PRESSURE REGULATOR OUTFLOWVALVE ABSOLUT...

Page 182: ...l knob 2 Themiddleelement whenassembled tothelowerelement completes andsealsthe cabinpressure chamber fromtherestofthecontroller witha sealing diaphragm The opposite sidesofthemiddleelement formsarate...

Page 183: ...relativeto cabinpressure is placedinthe systembetweenthe vacuumdriveninstruments andthe ejector i Ejector Theejectoris usedby the vacuumsystemto providea vacuumsource Locatedunderthe rightsidefloorpan...

Page 184: ...ced Trainer MAINTENANCE MANUAL A Pressurization Control continued PORT 2 DEPRESSURIZATION CONNECTION POPPET OUTFLOW VALVE INNERDIAPHRAGM BASEASSEMBLY POPPET VALVERETURN SPRING THISPORT NOISESUPPRESSIO...

Page 185: ...RESSURE 3 RATEPRESSURE REFERENCE PRESSURE AIRCRAFT VACUUM PRESSURE FACEVIEW OFCONTROLLER CabinAirPressureOutflowValveController Figure 4 EFFECTIVITY 040 999 PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAI...

Page 186: ...alveunderthe instrumentpanel 5 Placethe cabinair controlinthe pressurizedposition Closethe pressurization testvalve underthe instrumentpanel 6 Positionall circuitbreakersexceptthe cabinpressurecontrol...

Page 187: ...perPart Number756344 NOTE Theflowratevalvemustbe set infullpumpbypass beforestartingorstopping unit I Cabin Differential Pressure Indicator CabinReference Instrument Air PressureIndicator FillPort Ins...

Page 188: ...INTENANCE MANUAL A Pressurization Control continued 3 Pressurization CheckwithTestUnit continued 1 1 4INCHSUPPLY HOSEFROMTEST CART CABINPRESSURE IN Pressurization TestHookup Figure 503 EFFECTIVITY 040...

Page 189: ...descentis maintained on the rateof climbindicator Allowcabindifferentialpressureto riseto 6 0 psi onthe cabindifferential pressuregauge CDP 6 When6 0 psi is indicatedon CDPgauge rotateflowcontrolvalve...

Page 190: ...rplaneelectricalsystemanddisconnecttestunitpneumaticlinesfrom airplane Connectelectricallinesto vacuumreliefsolenoid ifdisconnectedandall aircraftpneumaticlines 15 Replaceaccessandtrim panels 4 Pressu...

Page 191: ...ly 500feet above fieldaltitude n Rotatecabinratecontrolselectorknobcounterclockwise Notereductionincabinpressure rate of change o Rotatecabinratecontrolselectorknobclockwise Noteincreaseincabinpressur...

Page 192: ...yprecautionsmustbe observed a Uncontrolled Pressurization 1 Duringflighttestingof system continuouslymonitorcabinpressurization instruments for overpressurization 2 Incase of uncontrolledpressurizatio...

Page 193: ...ally climbsto altitudeindicatedon controllerat ratesetwith cabin ratecontrolselectorknob 3 Monitordifferentialpressuregauge cabinaltitudegauge and otherpressurization controlsduringclimb c CruiseProce...

Page 194: ...sthan2 000feet 6 If systemis operatingsatisfactorily proceedto nexttest procedure e Descentand NegativeReliefCheckProcedure 1 Whilemaintaining18 000feet and cruise proceedwiththe followingsteps a Set...

Page 195: ...anced Trainer MAINTENANCE MANUAL A Pressurization Control continued CHART 2 CABIN ALTITUDE VS AIRPLANE ALTITUDE 12 000 uJ U LL 0 m 10 000 8 000 6 000 4 000 2 000 SEA LEVEL 0 4 8 12 16 24 32333435 EFFE...

Page 196: ...indshield Defog ControlLever Manual Temperature Control CabinFan Control ECSMode Control Automatic Temperature Selector Rateof Change Control Pressurization Test Dump Switch Altitude Controller CabinP...

Page 197: ...nect linesfrom regulator c Removethreeattachingscrewsfrom regulator d Removeregulator frommountingbracket 9 AbsolutePressureRegulatorInstallation a Installregulatorintomountingbracket b Installthreeat...

Page 198: ...utsand studs c Through tailsection access opening install threelocknuts holding valveinplace tighten to metalcontact thenbackoff1 4turn d Installaccess plateremoved fromsideoftailsection e Connect lin...

Page 199: ...econtrollerto instrument panelwiththreescrews c Positionelectroluminescent panelto instrument panelandsecurewithscrewspreviously removed d Removeprotectivecapsfrom selectorlinesandfittings Connectline...

Page 200: ...Replaceseals Frozenbearingdue to contamination or impropershimming Replacecoolingturbine Coolingturbinestopswhen requiredto run Waterseparatorblockage Excessiveair leakage Coalescerclothis iced Repair...

Page 201: ...eckwiring Insufficient conditionedairflow Bleed airON OFF valve notfullopen Leaks injointsorconnections Coolingturbinerotating torqueunsatisfactory SeeNote Heatexchanger leaking Malfunctioning Variabl...

Page 202: ...sor e Compressor Thecompressor intherefrigeration unitisbootstrapped totheturbine andcompresses the bleed airto ahigherpressure whichraises thetemperature f Compressor Discharge Overtemperature Sensin...

Page 203: ...aintainthe cabinat an average temperatureof 75 For less Duringa hotday the systemmustpullthe cabintemperature below80 Fin 20 minutesor lessfromthe timethe systemis turnedon Thecabintemperature control...

Page 204: ...rpressure Switch a InstallnewswitchandO ringintoreceptacle NOTE Ensureproperhightemperature O ringis usedby referringto PartsCatalog b Secureswitchwithsafetywire c Reconnect electricalconnectorswitch...

Page 205: ...tedinthe nose section rightside between stations57 00and 25 60 GROUND AIRFAN SERVICE 500HR ERSEPARATOR COALESCER SERVICE 500HR REFRIGERATION UNIT OVERPRESS SWITCH OPEN 40 3 psig LEGEND ELECTRICAL INLE...

Page 206: ...et 2 Installation of DuctTemperature Sensor a Installnewsensorand gasket Securewithfour screws 3 Removal of CabinTemperature SensorandController a Gainaccessto cabintemperature sensorandcontroller Rem...

Page 207: ...waterseparator 3 Cleaning Inspectionand Repairsof WaterSeparator The coalescerclothmustbecleanedor replacedat 500flight hoursor less exceptwhenoperated inabnormally dustyor contaminating conditions a...

Page 208: ...ENANCE MANUAL CHAPTER 23 LIST OF EFFECTIVE PAGES CHAPTER SECTION 23 EFFECTIVITY 23 CONTENTS 23 60 00 23 70 00 23 70 00 CHAPTER DATE SECTION PAGE 1 1 1 1 2 PAGE DATE Apr 15 91 Apr 15 91 Jan 10 90 Jan 1...

Page 209: ...TER 23 COMMUNICATIONS TABLE OF CONTENTS SUBJECT CHAPTER PAGE I Static Discharging InspectionandTesting Audio VideoMonitoring CockpitVoiceRecorder CVR Removalof CVRUnit Installationof CVRUnit Testing E...

Page 210: ...ksmustbeinspected ateachannual inspection forthefollowing a General appearance andphysical condition b Security of attachment toairframe c Discharge points visible d Resistance 1 0to 100megohms 500to...

Page 211: ...tsnormalmodeof operationisself erasingwhileit is recording 2 Removal of CVRUnit TheCVRcontrolunitis mountedonthe centerinstrument panelutilizingfourdzusfasteners a Unlockthe fastenersand liftthe contr...

Page 212: ...dchannel switching canbeaccomplished witha 600ohmheadset inserted intothejacklocated ontheCockpit controlUnit Withtheheadset inserted intothejacklocated ontheCockpit controlUnit speakinanormal voice6i...

Page 213: ...00 13 Jan 10 90 24 30 00 14 Jan 10 90 24 30 00 15 Jan 10 90 24 30 00 16 Jan 10 90 24 30 00 17 Jan 10 90 24 30 00 18 Jan 10 90 24 30 00 19 Jan 10 90 24 30 00 20 Jan10 90 24 30 00 21 Jan10 90 24 30 00 2...

Page 214: ...eratorControlUnit 12 CheckingGeneratorControlUnit 12 Removalof CrossStart Relays 13 Installationof CrossStartRelays 13 DescriptionandOperationof Battery 13 FaultIsolation Battery 14 ChargingBattery 19...

Page 215: ...of MainCircuitBreakers Installation of MainCircuitBreakers ElectricalPower DistributionSystemTest MainBusTie CircuitBreakerandCrossfeedDiodeCheck Left and RightCircuitBreakerPanels Removal of Plug inT...

Page 216: ...The electricalsystemiscontrolledbythreerockertypeswitches the batterymasterswitch right startergeneratorswitch and leftstartergeneratorswitch Theseswitchesare locatedon anoverhead paneljustabovethe wi...

Page 217: ...utilizedas requiredto operatethe variouselectrical systemsof the aircraft Thisunitincorporates itsowncooling system whichconsists of anairinletduct exhaust duct and afourbladed fanwhichispartof theuni...

Page 218: ...eswitchin power supply Defectivestartersolenoid Damagedarmature Shortcircuitedor open statorwindings Improperlyseated brushes Eccentric commutator Replaceswitch Replacesolenoid Replacethe armature ass...

Page 219: ...ive splines Armaturerubbinginstator Fanbladesbentand rubbing Unbalanced armature assembly Excessiverun outof armaturebearings Fandamagedorout of balance Voltmeterleadsreversed Residualmagnetisminfield...

Page 220: ...ficient cooling air Checkforair inlet temperature Air flowobstruction dirt accumulation ingenerator ducting Wrongloadapplied during testing Check ducting andgenerator airinlet Checktesting procedure a...

Page 221: ...iredto accomplishline maintenance of the startergenerators 4 Removal of StarterGenerator Afterenginecowlinghasbeenremoved a Disconnect andmarkelectricalwiringat terminalblock b Disconnect coolingair i...

Page 222: ...cautions mustbeobservedwhen servicing the charging circuits CAUTION FAILURETO OBSERVETHESEPRECAUTIONS COULDRESULTINSERIOUS DAMAGETOTHE ELECTRICAL EQUIPMENT a Wheninstallinga battery ensurethatthe grou...

Page 223: ...tartergeneratorsinstalledasstandardequipment are asfollows CHART2 STARTER GENERATOR TESTSPECIFICATIONS Rating MinimumContinuous 175amperes 28 voltsat groundidlespeedof 6 720rpm 300amperes 28 voltsat 6...

Page 224: ...ervals Bymeansof the diagonalwear grooveon the side of eachbrush whichshows100 usefullifewhen new the percentage of remainingusefullife is easilyestimatedat eachinspection Inspectgeneratorbrushesasfol...

Page 225: ...ation continued WEAR GROOVE 1 2LIFE REMAINING 1 4LIFE REMAINING NEWBRUSH Brush Wear Stages Figure 601 SOLID STYLE SPLIT STYLE RANDOM PARTICLE ALTITUDE TREATMENT CORETYPE ALTITUDE TREATMENT Instant Fil...

Page 226: ...stalledwithtop bevelasshownforthe clockwisearmature rotationindicated For reverserotation units topbevelwillbe oppositeto thatshown RECONNECT NEGATIVE FIELDLEAD LAYBRUSH LEADSOVER BRUSHSPRING CLIPS Co...

Page 227: ...WITH SOAP AND WATER IN CASE OF EYE CONTACT FLUSH EYES WITH WATER AND SEEK MEDICAL ATTENTION CAUTION DO NOT USE LUBRICANTS OR UNAUTHORIZED SOLVENTS WHICH CAN REDUCE BRUSH LIFE 2 Inspectinteriorof unit...

Page 228: ...crossthe interpoleterminalsof eachgenerator Whenthispotentialreaches a positivevoltageof 0 2voltsor more the integratedcircuits aftera timedelayinversely proportionalto the magnitude of the voltage ca...

Page 229: ...lockwashers andnuts c Reconnect batteryor externalpowerandperformoperationalcheck 17 Description and Operation of Battery The nickelcadmiumbatteriesmustbe keptcleanandchargedto remainairworthy Service...

Page 230: ...eration Short circuited coil Looseelectrical connection Replace coil Clean andtighten electrical connections Plungerbinding Badlyburnedpoints Seeremedypertaining to Plungerbinding under Doesnotoperate...

Page 231: ...links Loose battery connector Cellopen internally Electrolyte level toolow Discharge constant current charge Replacedefective cells Replace defective cells Replaceor tightenlinks and connector Replace...

Page 232: ...llterminal hardware to specified torque values Locate andremove foreign objects andreplace defective parts Replacebothmating connectors Discharge disassemble and replace defective cells Chargerfailure...

Page 233: ...350 amperesmax FloatingVoltages 0 F 29 0to 31 0volts 75 F 28 0to 30 0volts 100 F 27 4to 29 4volts DischargeRates Max ShortTime 10 sec 1720amperes 30 sec 860 amperes Max Continuous 430 amperes 1 hour...

Page 234: ...ntinued Circuit DiagramNo 1 Ammeter Load Resistor DischargeCircuit Preferred DischargeCircuit Alternate CircuitDiagramNo 2 Ammeter Temperature Probe Ammeter KnifeSwitch Shunt ChargingCircuit Preferred...

Page 235: ...edmethodand an alternatemethodarepresentedin Figure301 20 ConstantCurrentCharging If batterychargeisunknown completelydischarge the batterybeforecharging a Chargebatteryat 13 3ampsuntilbatteryvoltager...

Page 236: ...rosseachcell asvoltagegoesbelow1 2 volt c After allcells areshorted removeconnectingstrapsfromdefectivecell d Liftdefectivecellfrombatterybyliftingat terminalsusinga speciallyfabricatedtool referto Fi...

Page 237: ...ryweightis considerable 24 Installation ofBattery a Placebatteryon mountingbracketand reconnect ventlinespreviouslyremoved b Slidebatteryintoplaceandsecurewithtwo camlockson bottomfrontof battery c Co...

Page 238: ...sfully charged a Adjustlevelafterbatteryis fullychargedand is at restfor 2 to 4 hoursdisconnected fromany circuit b Remove ventplugfromeachcell oneat atime toadjustelectrolyte level c Useatransparent...

Page 239: ...period or ifbattery problemsarise the batteryshouldbe checkedmorefrequently Thischeckwill alsoequalizethe cellvoltages a Discharge the battery b Rechargebattery c Checkthe electrolytelevel adjustifnec...

Page 240: ...very100operatinghoursor 60 days whichever occursfirst Chargeratesdeterminewater consumption thusoperatingconditionsmustdetermineservicefrequency Nicadbatteriesshould neverbe servicedina leadacidbatter...

Page 241: ...to switch b Place switchinpanelassembly Secure withtwoscrews c Place coverpanelonswitch panel Secure withscrews 3 Removal of Rocker Switch a Removefour screwssecuringfacepanel Pullpanelawayfrom panela...

Page 242: ...PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL B OverheadMeterand SwitchPanelAssembly continued THIS PAGEINTENTIONALLY LEFTBLANK EFFECTIVITY 040 999 PAGE 26 XX XX XX Jan10 90...

Page 243: ...AU PROTECTION OIL COOLER DOOR OiLCOOLERDOOR PROTECTION BLEED AIR FUEL PUP IGNITION IGNITION PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL B OverheadMeterand SwitchPanelAssembly continued...

Page 244: ...nnected b Positionrequiredwiresat circuitbreakerterminals Securewith screws c Positioncircuitbreakerincircuitbreakerpanelandsecurewithscrew d Installcoverassembly CIRCUIT BREAKER BATBUSTIE NONESSEN RG...

Page 245: ...leftsideof main breaker panel Check thatequipment powered byrightmainbuscontinues tofunction If rightmainbuspowerislost diodeorcircuitbreakeron connectingwire P1D 6is open andmustbereplaced or reset 5...

Page 246: ...ment onleftmainandessential busesareinoperative 13 Ifleftmainandessential buspowerisstillpresent diodeonconnecting wireP1D 6 of rightmainbusisshorted 14 Pushinallbreakers andstartrightengine shutdownl...

Page 247: ...should be observed onEssen RMainbus Nopower should be observed onEssen L Mainbus Yes Yes Yes Yes 5 MainBusTieCircuitBreaker andCrossfeed DiodeCheck Thischeckensures thatgenerator electrical power isro...

Page 248: ...tbreakers allowthecrewto isolate individual electrical systems in theevent of trouble Theleftcircuitbreaker panelassembly consists of threeindividual panels Thetoppanelcontains indicator lightsforleft...

Page 249: ...Y MASTERSWITCHANDTHEGENERATOR SWITCHESAREINTHEOFFPOSITION WHENWORKINGONTHECIRCUIT BREAKERPANEL a Removepanelcoverfrom accircuitbreakerpanel b Removetwo screwssecuringcircuitbreakersupportbracket Withd...

Page 250: ...rcuitBreakerTerminal Screw Attachment Electroluminescent Panel Insulator Plate Insulator AC Bus Mounting Hardware 0 Mounting Plate Breaker forAC Circuit Locknutand Breakers Washer LeftAuxiliaryCircuit...

Page 251: ...que Indicating System LeftEngine Bleed AirValve LeftPropeller Deicer andDeice Timer LeftPropeller Inboard Heating Element LeftPropeller Outboard Heating Element LeftEngine AirIntakeParting Strip LeftE...

Page 252: ...ments LeftWindshield Heating Solenoid FuelQuantity Indicating System WingandTailDeiceEngage Valve WingandTailDeiceIndicator WingandTailDeice Timer Cockpit LeftPanel Lights Cockpit CenterPanel Lights C...

Page 253: ...Flood LightsIntensity Pilot s Attitude GyroandFlightDirector Radar Antenna Copilot s Attitude GyroandFlightDirector Ground Proximity Warning System Fairchild Cockpit Voice Recorder Unit Number 1Airsp...

Page 254: ...nd 7 5 ampbreakersareratedequally RightEngineElectricFuelPump RightSideLiftComputerPower RightSideLiftTransducerHeat RightEngineInterturbine Temperature System RightEngineStartContactor RightEngineIgn...

Page 255: ...ure Thermal Switch CabinOverpressure Switch Recirculating DoorSolenoids Overhead Reading andConsole Lights LeftandRight CabinAisleLights FlapMotor Down Solenoid UpSolenoid Position Indicator Position...

Page 256: ...erRadarControlPanel AreaNavigationComputerPower VoltageMonitor VeryLowFrequencyPower Number2 VeryHighFrequency NavigationReceiverPower Air DataSensorController Copilot sDistanceMeasuringEquipment Radi...

Page 257: ...rocess Unit AIRSPD2 1 Number 2Airspeed Indicator EADI2 1 Electronic Attitude Display Indicator Flag Number 2 Multifunction Processing Unit Number 2 Display Control Unit EHSI2 1 Electronic Horizontal S...

Page 258: ...60 00 25 60 00 25 60 00 25 60 00 25 60 00 25 70 00 25 70 00 25 70 00 25 70 00 25 70 00 CHAPTER DATE SECTION PAGE 1 1 1 1 2 3 4 5 6 7 1 1 2 3 4 5 1 2 3 4 5 PAGE DATE Jan10 90 Jan10 90 Jan10 90 Jan10 90...

Page 259: ...tallation of Tables 1 Removalof Curtain 2 Installationof Curtain 2 Removalof NavKitTie DownAssembly 2 Installationof NavKit Tie DownAssembly 2 Removalof ObserverConsoleCovers 2 Installationof Observer...

Page 260: ...c Moveseatto slotsinseattracksandliftseatofftracks 2 Installation ofCrewSeats a Place seatintoslotsinseattracks b Move seattodesired position c Install seattrackendcovers andseatstops d Reinstall othe...

Page 261: ...er access 3 Disconnect andtagelectrical wiring 4 Remove attaching hardware Itmaybenecessary to remove drawers andopentambor doorstogainaccess tosomemounting hardware 5 Remove cabinet b Install cabinet...

Page 262: ...embly 6 Installation ofNavKitTieDown Assembly a Position assembly toproper location b Attachmounting boltstosecure assembly toseattrack 7 Removal ofObserver Console Covers a Turnoffelectrical power NO...

Page 263: ...rest Right SideForward Passenger SeatDoesNotRecline PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Passenger Compartment continued SeatTrackLatch Release Handle Passenger SeatInstallati...

Page 264: ...AFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A PassengerCompartment continued SeatBack Adjust Lever SeatTrackLatch Release Handle ObserverSeatsInstallation Figure 402 EFFECTIVITY 040 999 25 20 00...

Page 265: ...IRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A PassengerCompartment continued VanityCabinet TableLeaf TablePlate StorageCabinet Table CabinetsandTableInstallation Figure 403 EFFECTIVITY 040 99...

Page 266: ...MAINTENANCE MANUAL A PassengerCompartment continued 0 TrackEnd Cover Curtain TopCover Bottom Cover NavKit Tie DownAssembly ObserverConsole ObserverConsole NavKitTie Down andCurtainInstallation Figure...

Page 267: ...PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A PassengerCompartment continued SEATING ARRANGEMENT SeatStops Figure 405 EFFECTIVITY 040 999 25 20 00 Jan 10 90...

Page 268: ...dslideaft e Remove seat 2 Installation ofToiletSeat a Positionseatto properlocation b Securebottomframeto wedjitfasteners c Connectrelieftubehoseto floorboard d Placepail intoposition e Checkrelieftub...

Page 269: ...ntennacablefromthe transmitter Figure 1 c Toremovethe ELT releasethe latchon the strapand slidethe ELToff the bracket d Disconnect the pilots removeswitchharnessfromthe transmitter e Extendthe portabl...

Page 270: ...NNA EXTENSION TAB ANTENNA LATCH POPSOUT OFCHANNEL VIEWB PULLTAB VIEWA ANDDOWN SET ON OFF ARM SWITCH TO ON PIN STOP TOEXTEND TOFULLLENGTH VIEWC ELT Portable Folding Antenna Figure 1 CONTACT SEPARATOR P...

Page 271: ...orARMifOFFdoesnotexist Return toARMposition NOTE Thetest transmission shouldbepickedup by the aircraftcommunications receiveror controltower Duringcoldweather therecouldbe a slightdelaybeforetransmis...

Page 272: ...rncommunications receiver to 121 5mHz Deactivate squelch andturnupvolume untilslightbackground noiseisheard NOTE If the aircraftis not fittedwith a communications receiver requestthat the tower listen...

Page 273: ...inadvertently activated setthe pilot sremoteswitchto ON thenreturnitto ARMposition Asaroutine precaution it isrecommended thattheELTbereplaced attheearliest chance following inadvertent activation Ho...

Page 274: ...57 00 theseshelves aremadeof2024 T3 aluminum angles brackets andclips Aprotective blanket installed intheavionics bay reduces thepossibility ofdamage to theavionics equipment caused bywaterleakage The...

Page 275: ...A AccessoryCompartments continued VIEWB Pitch Servo TOPVIEW LOOKINGDOWN VIEWD CockpitVoiceRecorder VIEWC VIEWE _ Pitch Servo Yaw Servo Trim Servo LEFT SIDEVIEW Electricaland ElectronicEquipment Locat...

Page 276: ...hting Inverter Assembly LeftStall RightStall Computer Computer Autofeather Computer 0 0 Lighting LeftIgnition Sensor RightIgnition Sensor Left andRight Left andRight Pilot Heat StallWarning Sensors Cu...

Page 277: ...Compartments continued VIEWB LeftandRight Windshield Heat Timers LeftandRightJetPump Disengage Relays FlapWarningRelay Gear Warning Relay FlapControlAmplifier LeftandRightFuel PumpRelays DeiceTimer L...

Page 278: ...AccessoryCompartments continued VIEWC Avionics 1and2Relays VIEWD LeftandRight StallWarning VIEW E Current Sensors and Horn Fuel FlowSignal Conditioner Electrical andElectronic Equipment Locations Figu...

Page 279: ...F EFFECTIVE PAGES CHAPTER SECTION 26 EFFECTIVITY 26 CONTENTS 26 10 00 26 20 00 26 20 00 26 20 00 26 20 00 26 20 00 CHAPTER DATE SECTION PAGE 1 1 1 1 2 3 4 5 PAGE DATE Jan 10 90 Jan 10 90 Jan 10 90 Jan...

Page 280: ...ral Detection DescriptionandOperation 26 20 00 Extinguishing Description andOperation Removalof FireExtinguisher Bottle Installation of FireExtinguisher ServicingFireExtinguisher Bottle ReplacingFireE...

Page 281: ...onsystemconsistsof threefire detectingthermalunitsand interconnecting harness Twoof theseunitsare locatedon eachsideof the frontfire seal inthe hot section One is locatedat the bottomof the rearfire s...

Page 282: ...naltubeextendsfromthe main dischargepipe passesaftthroughthe rearfire seal and terminatesat the top of the engine accessory section Anelectrically operatedcartridge firingsquib screwedintothe discharg...

Page 283: ...Disconnect threewiresconnecting squibunitwithaircraft harness WARNING CHARGEDBOTTLESMUSTBE HANDLED WITHCARETO AVOIDDAMAGING THE SEAL DONOTBRINGELECTRICAL CURRENTIN CONTACT WITH TERMINALS ONSQUIBASSEMB...

Page 284: ...verifyleftandrightengine fireextinguisher inoperative indicator lightsareoperating 4 ServicingFireExtinguisher Bottle a Check forleakage ordamage tocontainer b Ifbottleisnotbeingreplaced weighitto bes...

Page 285: ...TERY POWERED CONTINUITY LIGHT ORSIMILARDEVICEWHENTESTINGSQUIBASSEMBLY USE OFTESTDEVICES WHICH PASS MORE THAN30mACAN DETONATE SQUIB 6 Connectsquibtester Model115squibtest AmericanStandard Monrovia Cali...

Page 286: ...dgrip withthespraynozzle pointing forward Remove thesafety pin directthe nozzle towards thebaseofthefiresource squeeze theleverwiththepalmofthehand Maximum extinguishing effectis obtainedif the fire f...

Page 287: ...5 Jan 10 90 27 50 00 2 Jan 10 90 27 10 00 6 Jan 10 90 27 50 00 3 Jan 10 90 27 10 00 7 Jan 10 90 27 50 00 4 Jan 10 90 27 10 00 8 Jan 10 90 27 50 00 5 Jan 10 90 27 10 00 9 Jan 10 90 27 50 00 6 Jan 10 90...

Page 288: ...onBellcrank 10 Installationof AileronBellcrank 10 Removalof AileronTrim Fuselage 10 Installationof AileronTrim Fuselage 11 Removalof AileronTrim Wing 12 Installationof AileronTrim Wing 12 Riggingof Ai...

Page 289: ...allationof ElevatorControlCables 3 Removalof ElevatorPushTube 8 Installationof ElevatorPushTube 8 Riggingthe ElevatorControlSystem 8 ElevatorControlSystemFrictionCheck 9 ElevatorTrimSystem 10 Removalo...

Page 290: ...apTransmission Assemblyof FlapTransmission Serviceand Inspection of FlapTransmission InternalComponents Inspectionof OutboardWingFlapTransmission Inspectionof InboardWingFlapTransmission Removalof Fla...

Page 291: ...eelevators arecontrolled bycontrol columns through thecrossover shaft Anarm extending from thepivotfittinglocated ontheleftsideofthecrossover shaft transmits control column travelthrough a linktothefo...

Page 292: ...ndsareprovided withaninspection hole thescrewmustbescrewed in enough topasstheinspection hole Thisisdetermined visually orbyinserting apieceofwireinto theinspection hole Wherenoinspection holeisprovid...

Page 293: ...A 42 720 Advanced Trainer MAINTENANCE MANUAL B Standard Procedures continued CHART 1 CABLE RIGGING TENSION VS TEMPERATURE 200 Z 50 20 RIGGING LOADCORRECTION POUNDS SUBTRACT ADD EFFECTIVITY 040 999 27...

Page 294: ...lockpin fromdrum Ifoneendofcableismarked to facilitate hookup ofcableends notelocation inrelation todrumwheninstalling newcableon drum 6 Check condition ofbushing inhousing bracket forexcess wear 7 To...

Page 295: ...PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL C Wrapping ofTrimDrums continued Methodsof BlockingTrimCables Figure 2 EFFECTIVITY 040 999 27 00 00 Jan 10 90...

Page 296: ...Advanced Trainer MAINTENANCE MANUAL D SpecialTools ElevatorRiggingTool AileronRigging Tool Rudderand RudderTrim RiggingTool Flap RiggingTool Tool P N L 72233 Rudder PedalRiggingTool SpecialTools Figu...

Page 297: ...Cutthrough the disc andsocketto permitit to slide overthepotshaft TOPVIEW Holes 0 250 Holesdrilledin discforsmall punchtypeobject to assistintightening thejamnut onpot 0 187OR0 250 steeldisc Fabricate...

Page 298: ...etrailingedge support hasbeenset MarkGraduations in inches Hingecenterline placeddirectly overhingelineof controlsurface Horizontally Adjustable for settingtoolto widthof control surface BubbleLevel S...

Page 299: ...anceto control wheelrotation Systemnot lubricated properly Lubricatesystem Cabletensiontoo high Controlcolumnchain improperlyadjusted Pulleysbindingor rubbing Cablesnot inplaceon pulleys Bentaileron a...

Page 300: ...travel Incorrect rigging of aileronsystem Aileron control rodsnot adjusted properly Rig Adjust Aileron bellcrank stops notadjusted properly Adjustandcheckall bellcranks inthe fuselageandwings Correcta...

Page 301: ...sistance Systemnot lubricated properly Lubricatesystem Cabletensiontoo high Adjust Pulleysbindingor rubbing Cablesnot inplaceon pulleys Trimtab hingebinding Cablescrossedor routedincorrectly Replacebi...

Page 302: ...f wingfillet e Toremoveleftbalancecable proceedasfollows 1 In leftwingat bellcrank removesafetywireor clipfromaftturnbuckle disconnectcable 2 RemovefairleadsatWingStations58 5and121 5and removecablegu...

Page 303: ...tsideof uppercontrolsector 4 Fastencableend to aileroncontrolsectorby screwingon retainerand safetywiring b Installrightprimarycableasfollows 1 Connecttumbucklefork to forwardarmof bellcrankin rightwi...

Page 304: ...AIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A Aileronand Tab continued F S 112 49 F S 170 03 Aileron andAileron TrimControls Figure401 Sheet 1of 3 EFFECTIVITY 040 999 Jan 10 90 7 1 0 00 Jan...

Page 305: ...n and Tab continued FuslageStation93 30 AileronTrimPulley FuselageStation101 23 Fuselage Station101 10 Fuselage Station142 0 FuselageStation170 03 Fuselage Station164 51 AileronandAileronTrimControls...

Page 306: ...e WingStation 147 50 PIPER AIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Aileron and Tab continued AileronTrimTab Cable WingStation 0 50 WingStation 174 50 WingStation 174 50 rightwingonly...

Page 307: ...bysecuringbearingblocksto each columnwithten AN3 3Aboltspreviouslyremoved d Installchainson sprocketsso previously installedty rapsalignwith sprocketalignmentmarks e Reconnect turnbucklesensuringprope...

Page 308: ...llcrank aftendandbalance cableendis painted redtofacilitate proper hookup Donottighten turnbuckle forkendsonbellcrank soendscannot rotate e Installstopblockandtorquebolts f Checkaileron controls riggi...

Page 309: ...eronTrim Fuselage Figure401 NOTE Beforeinstallingcable notewhichcableis routedto whichturnbucklein wing a Ensureappropriate cableis centeredand evenlywrappedand blockedon trimdrumto prevent unwrapping...

Page 310: ...umassemblyinsidewing installattachment bolts and torque d Finishdrawingcablesthroughwing Connectto appropriate tumbucklesat WingStation90 0 If fuselagecable systemis notinstalled blockcablesat ribWing...

Page 311: ...pand drumhousingmeasuredalongscrew Thisis neutralpositionof screw d Withrightwing riggingtool P N72159 2 installedand aileronsin neutralposition rotatetrim wheelin cockpitto specificationsinfigure27 6...

Page 312: ...Aileronand Tab continued AileronandAileronTrimTab CAUTION MAKE SURE TOSECURELY CLAMP BELLCRANKS ATQUADRANT BEFORE TIGHTENING CABLES TrimTabtravelwith Aileron inneutral position 2 below chord line Aile...

Page 313: ...aldoesnot exceed9 poundswithoutautopilotbridlecablesconnected or 10 poundswithautopilotbridlecablesconnected 20 AileronTrimTabFreePlay a Positiontrim tab inneutralposition Trailingedgeof tab in neutra...

Page 314: ...IPER AIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL Aileron A Aileronand Tab continued Flap 50 50 Measurefrom here AileronFrictionCheck Figure 601 EFFECTIVITY 040 999 PAGE 16 27 10 00 Jan 10 9...

Page 315: ...necessary b Feedcablesbackthroughpulleysto F S 303 5 c If aftcablesarenotinstalled ensurecablesare alignedon pulleysandsector andputtension on cableswhileblockingthemaft of bulkheadF S 310 0 d If aftc...

Page 316: ...2 720 Advanced Trainer MAINTENANCE MANUAL A Rudderand Tab continued RudderTrimCable FuselageStation279 38 FuselageStation333 43 RudderControlSystemInstallation Figure 401 Sheet 1of 2 EFFECTIVITY 040 9...

Page 317: ...Tralner MAINTENANCE MANUAL A RudderandTab continued Rudder Trim Fuselage Station 62 75 Fuselage Station 387 00 Fuselage Station 380 61 Fuselage Station 402 40 RudderControlSystemInstallation Figure 4...

Page 318: ...dderinneutralposition NOTE If forwardcablesystemis notinstalled ensurecablesarecenteredinpulleysand blockthemto bulkheadF S 310 0 c At F S 303 5in cargosectionof cabin removeleaderlines Afterensuringa...

Page 319: ...ons of rudderpedalpushrodassembliesexist referencepointfor rudderpedalsisdeterminedasfollows a ForpedalpushrodsP N70752 19and P N70752 20 aircraftupto serialnumber42 801038 positionandsecurerudderpeda...

Page 320: ...at ruddersectorfor 30 rightand 20 left 10 Withrudderin neutral rotatetrimwheelincockpitsotab travelis 10 rightand 20 left Trimcabletensionto matchspecifications in Figure501 11 Removeriggingtools and...

Page 321: ...T PA 42 720 Advanced Trainer MAINTENANCE MANUAL A RudderandTab continued ToolP N 72260 RudderRiggingTool Figure 502 TrimTab Tool P N72266 2 RudderTrim Rigging Tool Figure 503 EFFECTIVITY 040 999 2720...

Page 322: ...o gainaccessto this cablehardware removerequiredseatsandfloorpanels Iffairleadsfor aft cablesystemin pressurebulkheadF S 332 0mustbe removed removerightsidefloorpanels ApproachturnbucklesaroundF S 312...

Page 323: ...bles usingone methodin27 00 00 Figure 2 on frontsideof bulkheadF S 332 0to preventunwrapping fromscrewdrumassemblyon aft cantedbulkhead c Blockforwardcablesto rearof F S 310 0bulkhead d Markone setof...

Page 324: ...min neutral 2 1 4turnsof eachsideof cable mustbe wrappedon drum e With systeminneutral ensureaftscrewdrumintail alsohas9 1 4turnsof cablewrappedon eachsideof drum f On aft trimdrum measuredistancefrom...

Page 325: ...sclearof bearing support housing slidesubassemblies offtube Iftube needs to bereplaced jockeyitoutfromunderneath d Toremove pilotandcopilot rightpedals orforward torque tube proceed asfollows 1 Remove...

Page 326: ...besandplace endoftubesoitaccepts sleeve inice 2 Heatsupportsleeveinovenat 350 for 15minutes 3 Remove torquetubefromiceandimmediately slideheated sleeve overtube Besureto alignholesintwoassemblies solo...

Page 327: ...lcapboltswithoutblockcap 6 Installclevispin washer andcotterpinthroughbearingsupporthousingandtorquetube 7 Bolton rudderpedalsandbrakecylinderswhererequired 8 Installand connectall hardwareand assembl...

Page 328: ...Bearing PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Rudder andTab continued TorqueTube EndBearina RudderPedalsInstallation Figure 402 EFFECTIVITY 040 999 PAGE14 27 20 00 Jan 10 90...

Page 329: ...votboltand pushboltthroughsectors c ScrewAN6 60ApivotboltintonutplateusingstandardtorquedesignatedinAC43 13 NOTE Tofacilitate rigging ensure torquetubedriving forward sector measures 12 31 inches betw...

Page 330: ...hereitanglesupto turnbuckle at F S 322 5 Theaftup cableisrouted through fairleadinaftpressure bulkhead through pulleysatF S 355 75 and366 0 andtoaftcontrol sector Theforward downcable attached to left...

Page 331: ...tion onelevator rigging control andtightenelevator control cables at turnbuckles 3 Reinstall allcableguardpins rubblocks andotherhardware b Aftcables runningfromturnbucklepositionsto aft sector areins...

Page 332: ...8 162 80 F S 251 00 PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL Shadedareasrepresent thecomersofthesectors paintedred Elevator upcable Elevator Trim Pulley Fuselage Station93 90 F S 43...

Page 333: ...T PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Elevator and Tab continued Elevator Trim Cables Elevator TrimPulleys Fuselage Station162 60 and251 00 Fuselage Station279 38 Fuselage Station332 50 El...

Page 334: ...B TRAILINGEDGEEVENWITHTHE TRAILING EDGEOFTHEELEVATOR ORITSNEUTRAL POSITION 2 TRIM TAB FREEPLAYMUSTNOT EXCEED 0 126MAX ATTHETRAILINGEDGEOFTHE TAB 3 RIG ELEVATORS WITH ELEVATORS IN NEUTRAL POSITION PINN...

Page 335: ...Trainer MAINTENANCE MANUAL A Elevator andTab continued ToolP N72046 ElevatorRiggingTool Figure 502 Elevator HornAssembly Elevator Torque TubeCollar VIEWA A Elevator Rigging Stops Figure503 EFFECTIVIT...

Page 336: ...d towhich thesectoristo beattached Reach through aftaccess hole intailandconnect tubeto sector byinstalling AN4 13A bolt e Remove restraint fromcontrol hom Allow elevator to movetodownstop f Installbu...

Page 337: ...ral withelevator tabinneutral j Withelevator inneutral rotate trimcontrol wheelincockpit toobtainupanddowntabtravels andminimum trimcabletension specified inFigure 501 k Remove rigging tool Install ac...

Page 338: ...tandcopilotseatsandrightsidepassenger seatsasnecessary b Remove floorpanelaftof pedestal thoseunderandleftofcopilot seat rightsidepassenger seats floorpanelsnecessary to reach required cables andhardw...

Page 339: ...r assembly b Remove cotterpins nuts washers andboltssecuring twotrimtabrodassemblies totrim actuator c Remove elevator refer to55 20 00 Removal of Elevator Blocktrimcables to actuator Figure 402 d Rem...

Page 340: ...refully remove accesspanelincontrolpedestal floor 2 Ensure trimcables areproperly wrapped 3 Ensure trimcabletension issetaccording tospecifications inFigure 501 4 Ensure actuating screwsarepositioned...

Page 341: ...inchminimum looseness between actuator frame Trimdrumbracket guide assembly d Ensure forcerequired to actuate unitat room temperature 60 F to85 0F doesnotexceed 1 5 pounds break out forceor1poundpullo...

Page 342: ...ccess plates onsideofpedestal b Installelevator trimcontrolasfollows 1 Installindicator ensuring indicator isaligned properly 2 Installfourmounting screws andlaylcontrol assembly intocontrol pedestal...

Page 343: ...aution to avoidinterference withmechanism TrimPosition Indicator Gear PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A Elevator andTab continued Rudder Trim Control TrimControl Installatio...

Page 344: ...withtherecognition horn Asingletestswitchismounted ontheinstrument panelbelow thefirewarning light switches On theground activation oftheswitchbypasses therightgearsquatswitch turnsonthecomputer andsl...

Page 345: ...if different to the logbookvalues Tomaketheseadjustments useSafeFlightInstruments Corporation ForceApplicationKit P N1952 3 asfollows a Attachpositionbracketto lifttransducercavity b Attachpropergaug...

Page 346: ...fierwill shutthe systemoff Thisconditioncorresponds to a maximum differentialof 5 offlap position A flapfaulttest switchisprovidedto checkcontrolcircuitryfor asymmetrical flap protection aswell as ope...

Page 347: ...IPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A Flaps continued VIEWB FWD DOWN FWD UP LIMIT SWITCH VIEWC VIEWD A A B C D WingFlapInstallation Figure 401 EFFECTIVITY 040 999 Jan 10 90 27 50...

Page 348: ...anels 6 Removal of FlexibleActuatorShaft Figure 402 a Remove the centerfloorpanellocatedin the maincabinarea b Remove the rightor left rowof seatsandfloorpanelsaft of the mainspar c Removethe aft acce...

Page 349: ...nced Trainer MAINTENANCE MANUAL A Flaps continued Down LmitSwitch Potentiometer Linkage Control Potentiometer AmplifierAdjustment andTest Points FlapSystem Functional Diagram Figure1 EFFECTIVITY 040 9...

Page 350: ...1032C PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Flaps continued ShaftAssembly Selector Switch Indicator FlapPosition Motor LeftTransmission Assembly Postion Sender Assembly Motor S...

Page 351: ...chmounting bracketandbushing Install thethrough boltandsecure d If workingwiththe left transmission connectthe flexibleactuatorshaft and safetywith MS20995C41 safety wire Attach therightflexible shaft...

Page 352: ...ternal openings 6 Applya lubricant consisting of20 Aeroshell No 7grease and80 Mobile JetIIOiloran equivalent mixture tothewiper Install wiperandwiperblockontotheballnutandsecure with screws 7 Safetywi...

Page 353: ...rication consisting of 20 Aeroshell No 7grease and80 MobilJetIIOil orequivalent mixture towormshaftandwormgear Rotate wormshaftwhile applying o Installball screwandtubeassemblythroughbearingandwormgea...

Page 354: ...AL A Flaps continued PinDia divide by 2 0 164 0 328 ref X 0 164 Z Firstreading FirstMeasurement NOTE Should read0 750 ref A Second reading Front Bearing SecondMeasurement Third Measurement FlapTransmi...

Page 355: ...sion W PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A Flaps continued FrontBearing WormGear Subtract 0 001 0 002 for shimrequirement W K ANS FourthMeasurement FlapTransmission Measuremen...

Page 356: ...morethan0 015inchthe wormgearandwormshaftmustbe replacedasa set Referto Figure602 13 Inspectionof OutboardWingFlapTransmission referto Figure601 The flaptransmissions are inspectedat the first 500 hou...

Page 357: ...ng pliersto inboard transmission screwjack Donotforcepliers 1 Placeasix inch rulerperpendicular tobottom wingskin 2 Measurefreeplayfrom centerof flap transmissiondown approximately 3 inches Freeplay m...

Page 358: ...Box a Installthe flap controlboxinthe instrument panel b Installthetwo screwsthat securethe controlbox c Connectthe electricalleads d Installthe knob 17 Removal of FlapControlAmplifier a Openaccessdoo...

Page 359: ...NTS MUSTBE MADEWITHMOTORPOWEROFF All adjustments are madewithmotorcircuitbreakerpulledOFFandflaps in DOWNposition Adjustmentproceduresrequirespecialequipmentsuchas a digitalvoltmeterand flapriggingtoo...

Page 360: ...CONTROL SYSTEM MUST BE OFF PULL FLAP CONTROL AND MOTOR CIRCUIT BREAKERS SET BATTERY MASTER SWITCH OFF AND DISCONNECT EXTERNAL POWER a Removeaccessplatesinfalse sparat wingstations42 50 53 00 92 50 an...

Page 361: ...AIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Flaps continued ACTUATOR ARM SKETCH B TOOL P N 71505 16 LH TOOL P N 71505 17 RH SKETCH A FlapRigging Figure 502 EFFECTIVITY 040 999 Feb1 98 27...

Page 362: ...ttachingnutfingertight SafetywithMS20995 C32 wire 22 ElectricalRiggingProcedure a Removecoversfrom RT2and RT3onflapcontrolamplifier Ensurebothtrimmersare positionedfullyclockwise Insert30 ampfuse fort...

Page 363: ...Voltagemustbe 0 05Vminimumand 0 15Vmaximum t Moveflapsto the DOWNposition u MeasureRC RL Voltagemustbe 0 05Vminimumand 0 30Vmaximum v MeasureRC RR Voltagemustbe 0 05Vminimumand 0 30Vmaximum NOTE Ifthe...

Page 364: ...DOWNpositions Readjust trimmeras required d RecheckVLRandreadjustas necessary RT2couldrequirereadjustment e EnsureVL and VRare stillwithinlimitsof VCspecifiedand ensurepositionindicator agreeswithfla...

Page 365: ...o RL RC to RR RC to RL VOLTAGE CHANGEBY MULTIPLY x VCL RC to RR VOLTAGE CHANGEBY MULTIPLY x VCR SAMEASSTEP1 0 03 V V V V V V V 2 V V 2 V ADD VCL STEP2 ADJUSTRT2 POT TO ADJUSTRLSHAFT RC RLVOLTAGE CHECK...

Page 366: ...nd K2 If 27 5 voltsdoesnot existat drivemotor contactsof relaysK1or K2aredefective Replacedefective relays If drivemotoroperateswhenenergizingrelaysK1and K2locally problemexistsin eithercontrolbox lef...

Page 367: ...Jan 10 90 28 40 00 11 Jan 10 90 28 10 00 8 Jan 10 90 28 40 00 12 Jan 10 90 28 10 00 9 Jan 10 90 28 40 00 13 Jan 10 90 28 10 00 10 Jan 10 90 28 40 00 14 Jan 10 90 28 10 00 11 Jan 10 90 28 40 00 15 Jan...

Page 368: ...ningof FuelCells 14 Repairof FuelCells 15 Handlingof RepairMaterials 15 RepairLimitations of FuelCells 16 RepairPatch HeatCureMethod 19 RepairPatch AirCureMethod 21 RepairPatch QuickCureMethod 23 Seal...

Page 369: ...rossfeedValve FuelFlowand PressureTest Jet PumpFlowCheck Cleaningof FuelFilterScreen 10 10 11 12 12 14 15 28 40 00 Indicating Descriptionand Operation FuelQuantityIndicatingSystem AutomaticFuelPumpSys...

Page 370: ...fromthatwing smainfueltankthrough asubmerged fuelpump main feedline fuelshutoff valve fuelfilter themainengine driven fuelsupply pump andfuelcontrol unit containing another engine driven pump Thesubme...

Page 371: ...alve Fuel Sender Unit Inbd FuelCell NOTE 1 Engine drivenboostpumpoperates anytimeengine gasgenerator N1 is turningandsupplies fueltothefuelcontrol unit 2 Submerged fuelpumpis usedtooperatethejettransf...

Page 372: ...lamearrestors Thetiptankhasa ventwellassembly containing afloatvalve tiprelieftube andthemainvent lineconnected toit Thisventwellissealed fromthefuelstorage areainthetiptank except forthefloatvalveand...

Page 373: ...Tank leak Locate andrepair ortighten Repair leak Fuelleakingfrom NACA vents Fullfueltanksandfuel expansion dueto exposure toheat Defuelaircraftor parkina shaded or coolerlocation Floatvalveinnacellet...

Page 374: ...ithsoapandwarmwaterpriortostorage dryandplaceincontainer 2 Foldcellssmoothly andlightly aspossible withminimum number offolds Place protective wadding between folds 3 Wrapcellinmoisture proof paper an...

Page 375: ...42 720 Advanced Trainer MAINTENANCE MANUAL A Storage continued BoltAssembly 6 Req TorqueBolt50 to 70in lbs TipTank lbs Plastic Tubing Bonding Strap VIEW B VIEW A TipTankInstallation Figure 401 Sheet 1...

Page 376: ...n Sealant PR1422 A 2 for DomeNutSealingand LightningProtection SECTIONALVIEWB B NOTE If necessary thetiptankdomenutsmaybesealedbycoating theentire surfaceofthenutswithwithPR1422 A 2 sealant Thedomenut...

Page 377: ...ate access hole Loosen anddisconnect clamps fromnipples and interconnecting tubes If replacement oftubesisnecessary remove fromwingby disconnecting eachtubeground strapfromsparandfromothertank f Onund...

Page 378: ...ed Trainer MAINTENANCE MANUAL A Storage continued Gasket NOTE Lacinginthisareato bepulled tight and tiedoff aftersenderunitinstallation hasbeencompleted Inboard Main95 GallonFuelCell Figure 402 EFFECT...

Page 379: ...FuelQuanititySensorAssembly PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A Storage continued CoverPlate Outboard 40Gallon FuelCell Figure403 EFFECTIVITY 040 999 Jan 10 9028 10 00...

Page 380: ...PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Storage continued FuelQuanitity SensorAssembly Bushing Assembly AftInboard33 GallonFuelCell Figure 404 EFFECTIVITY 040 999 28 10 00 PAGE9...

Page 381: ...nsertthroughaccessopeningcell f Afterfittingcellintowing unrollcell andestablishpropersizingof cellto fit compartment g Fromeachend of cellcompartment feedcordthroughcellhangersand rib bushingsuntil c...

Page 382: ...inoutboard fuelcellto inboard endof maininboard cell p Connect twocrossover tubesbetween maininboard andoutboard fuelcellsbyinserting tubes intonipples ineachcellandinstalling clamps frominsidecell To...

Page 383: ...Step1 Step2 PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A Storage continued Step 3 Step 4 Step5 Step6 Step7 FuelCellThreading Detail Figure406 EFFECTIVITY PAGE 12 Jan10 90 28 10 00...

Page 384: ...M HYDROXIDE PROVIDE ADEQUATE VENTILATION TO MAINTAIN THECONCENTRATION OF AMMONIABELOWACCEPTABLE LEVELS REFERTO28 10 00 CHART801 3 Pourammoniaas suppliedon an absorbent cloth inthe ratioof 3cc 1teaspoo...

Page 385: ...ttings forrubber deterioration byusingfingernail to attempt scraping rubber offmetalor nipple fitting Ifrubber isnotdeteriorated fingernail willglideacross rubber Ifdeterioration fingernail willdigint...

Page 386: ...iringallowscellsto be curedand readyfor installationintwo hours Aircurerepairingrequiresthatthe cell notbe movedfor 72 hoursor longer Quickcurerepairingcanbe usedon cellsthat haveminordamageandcanbe r...

Page 387: ...tside and insidepatches to repair seperations between outerplieslarger than1 0inches indiameter NOTE Slitsortearsarelimited to 6 0inches maximum inlength f Applyoutside patchonlyto external abraded or...

Page 388: ...3 35721 1 heatcu C clamps Vaperproof light Sheers Electricmotor GROUPII MINIMUM EQUIPMENT C 250 ml Sheet6 in x 24 in min Sheet1 4 in x 12in x 12 in min 1in wide 1 4in x 6 in x 6 in min GROUPIIIMINIMU...

Page 389: ...ide 6 inchx 9 inch wooden white 164T 4 ea 2 ea 9 ea 1 pr 1 ea NOTE All materialsrequiredto performautorizedrepairsareincludedinthe groupI and groupII repair kitsexceptfor cleanclothsand methylethyketo...

Page 390: ...BUFFCELLSURFACE WITHCARETOAVOIDFURTHERDAMAGE e Buffcellsurfacesurrounding damagedareaas markedand contactsideof patchwithfine emeryclothto removegloss f Washcellandpatchsurfacestwo moretimesusinga cl...

Page 391: ...uminumplatesmustbe largerthanpatch o Coveronesideofaluminum platewith0 25inchfabric backed airfoam fabric sideout Tape airfoam intoplace Ensure airfoam coversedges ofplateforprotection p Cuttwobackup...

Page 392: ...ketone solvent d Center repair patchoverdamaged area Mark cell0 50inchbeyond patchinalldirections CAUTION BUFFCELLSURFACE WITHCARETO AVOIDFURTHERDAMAGE e Buffcellsurface surrounding damaged areaasmark...

Page 393: ...tch NOTE Aluminum platesmustbelarger thanpatch o Coveronesideofaluminum platewith0 25inchfabric backed airfoam fabricsideout Tape airfoam intoplace Ensure airfoam covers edges ofplateforprotection p C...

Page 394: ...ns usingaclothdampened withMEK c Center fabricpatchoverinjury Mark cell0 50inchbeyond patchinalldirections CAUTION BUFFFUELCELLWITHCARETO PREVENTDAMAGE BEYONDINJURYAND TO PROTECT CELLFABRIC REINFORCEM...

Page 395: ...oving cellorexposing thecelltofuel m Check repairaftercuretimeto ensure cement iscured Ifsticky proceed asfollows 1 Remove repair patchandallcement 2 Repeat steps1thru12 Makesurecementisnotoutofdate n...

Page 396: ...pull thecelllapopenwhilepeeling accessory off NOTE Removal oftheoldaccessory willprobably leaveanuneven cavityandsurface d Buffthecellsurface under theaccessory withemeryclothto smooth roughness andpr...

Page 397: ...ment toeachsurface 4 Clamp andcure Eithermethod maybeused Seerepair patch 5 Trimlooseedges if lessthan1 8inchremains d Repair insideloose fittingflange asfollows 1 Bufftheedge of theflangeandthecontac...

Page 398: ...ithinthe wingrootcavity Thecrossfeedvalveis mountedto a teefitting on the leftwingrib inthe leftrootcavityand is connectedin linewiththe leftfuelfeedline b FuelFilter referto 28 20 00 Figure 1 Fuelfil...

Page 399: ...Advanced Trainer MAINTENANCE MANUAL A Distribution continued Vent Vapor Bleed Line SumpDrain Valve AntiSiphon Fier Cap Nacelle Fuel Tank FuelFeedandCrossfeed Installation Figure2 EFFECTIVITY 040 999 P...

Page 400: ...CheckValveand WingFuelSystem Figure 3 PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A Distribution continued FuelCell Connector VIEW B VIEW A EFFECTIVITY 040 999 28 20 00 PAGE 3...

Page 401: ...ard maintank theauxiliary tankisthelowest partofthesystem andrequires ameans oftransferring fuelto anengine feedareaoncethefuellevelhas decreased below theinterconnecting tubelevel Thejettransfer pump...

Page 402: ...nickor damageball Cleanasnecessary I Withrollpin removed from shaft pushcontrolshaftintovalvebodyand remove m RemoveO ringfrom shaftandcleanO ring n Removeotherseal O ring wavewasher andspacer o Thoro...

Page 403: ...RAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCEMANUAL A Distribution continued Open Position Closed Position Shut Off Valve SeeNote DukesFuelValve Crossfeed andShutoff Figure301 EFFECTIVITY 040 999 2...

Page 404: ...uring elbowinposition c Carefully remove elbow checkvalve andreplace O ringif necessary d Slide apieceof 0 02inchsafety wirethrough elbowendof canister toothersideandputa 1 16inchorlessbendatendofwire...

Page 405: ...depending onvalvebeinginstalled b Connect proper fuellinesto valve Connect control cableto actuator armwithattaching hardware c Check valveandendfittings forleaksbyfillingtankwithfuel d Installlower...

Page 406: ...lter e Turnfuel shutoffvalveon anddepressfuelfilterbowldrainvalveuntilsteadyflowof fuelexists Releasehandleand checkfor leakswherefilterbowlassemblyscrewsintoheadassembly andwheretwofuel linesand filt...

Page 407: ...RENCHMUSTBEUSEDTO BACKUP EACHTANKCONNECTION TO PREVENTNYLONFITTINGFROMTURNING IF FITTINGTURNS INTERNAL WIRECONNECTION WILLBREAK NECESSITATING PUMPREPLACEMENT d In wingrootcavity backup anddisconnectel...

Page 408: ...opon valve body c Gapbetween control leverandstopmustbe0 10 0 20inch If not proceed tostep4 d Disconnect control cableatactuator arm Loosen jamnutatclevisfitting e Place shutoff valveactuator armfirml...

Page 409: ...haircraft fuelpressure gauges read0psi 3 Turncrossfeed valveoff andleftandrightfirewallshutoff valveson Close testrig regulating valveandturnrightsubmerged fuelpumpon 4 Ensure fuelpressure gaugereads0...

Page 410: ...1 2 Forrightengine a Turncrossfeed valveoff andturnrightfirewall shutoff valveandrightsubmerged fuel pumpon b Adjust flowmeter reading to500pph Fuelpressure mustreadminimum 17psig c Ensure aircraft fu...

Page 411: ...ortubing Connectlineto jet pump andwhilekeepingfree end24 inchesabovejet pumpoutlet routelineout or neardoor Connectcontrolon offvalveto freeend of line d Withfirewallshutoffvalveclosed off add at lea...

Page 412: ...dlefuelquantityindicator mountedonthe copilotside abovethecontrolwheel hasitsown ac inverterto powerthecapacitanceprobesystems Electricalpowerforthe entire systemis suppliedfromthe 28 Vdcaircraftpower...

Page 413: ...PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Indicating continued Outboard MainTank FuelCapacitance Probe Installations Figure1 EFFECTIVITY 040 999 28 40 00 Jan 10 90...

Page 414: ...y Faultyfuel pressuregaugeor transducer MotivePortinJetTransfer pump clogged InletPortscreenclogged Frictionin metermovement causedby dirtor improper alignmentof meterpointer Metermovement coilis open...

Page 415: ...d CHART 1 FAULTISOLATION FUELSYSTEM Sheet2 of 2 Fault Cause Remedy Zeroindication of Fuel Quantity Indicator is outoftolerance Meterpointer outof balance Internal mechanical adjustment of meter notset...

Page 416: ...gStation102 0 2 Ensureenoughfuelis drainedfromsystemto preventspillover 3 Removeaccesscovernextto filler cap 4 Disconnectandtag or markleadsto facilitatereconnection 5 Removescrewsattachingprobesensor...

Page 417: ...0 1 Carefully install probesensor andgasket Installscrews attaching probesensor tofuel cell 2 Connect leads toprobesensor Ensure marked ortagged leads areconnected properly 3 Installaccess covers prev...

Page 418: ...s equipment section ofpartscatalog for correct partnumbers NOTE Analternate interface harness Ragen P N89 2241 maybeusedforthis calibration checkwithout theuseoftheadapter harnesses asmentioned above...

Page 419: ...rness TestBox L Wing or R Wing Adapter TestHarness L Wing AdapterTestHarness Individual FuelProbe R Wing Test Harness E344 FuelQuanitity Indicator I MainFuselage Harness E344 J2 J1 E344 FuelCalibratio...

Page 420: ...S switchoninterface harness toMEAS position 13 Setswitches onfuelcalibration testsetasfollows a SetMEASINT MEASEXTswitchto MEASEXTposition b SetNORM CAL switchto NORMposition 14 Checkgauge onfuelcalib...

Page 421: ...in harness 16 Add3 gallonsof fuelat tiptankfiller point Wait15 minutesfor fuelto settleinthe wing 17 Setbothinterfaceharnessswitchesto NORMposition 18 Setfuel quantityindicatorto read0 lbsby adjusting...

Page 422: ...01 TANKUNITCAPACITANCE DRY Piper Part No RagenPart Capacitance pF Number 07545 07 76 161 6 17 66 07545 02 76 161 1 20 65 07545 03 76 161 2 18 42 07545 04 76 161 3 31 60 07545 06 76 161 5 59 63 07545 0...

Page 423: ...t b WetCalibrationProcedure CAUTION ENSURETHATTHEWEIGHTOFTHE FUELISACCURATE BEFORE ADJUSTING FUELQUANTITYINDICATOR EXAMPLE 300 U S GALLONS OFJET AFUELAT75 FWILLWEIGH2000LBS WHILE305 U S GALLONS OFJET...

Page 424: ...AN S TEST SET BARFIELD 2548 G GA S N PROCEDURE L L SIDE R SIDE DRY 3 GAL SIDE ADJ LOW SYSTEM CAPACITANCE SIMULATE 1870 LBS ADJUST HIGH 500 LB OF FUEL 1000 LB OF FUEL 1500 LB OF FUEL FULL OR 2000 LB OF...

Page 425: ...st Sensor Test 36 I Convenient I Insulated Surface 6 1 70 Dia NOTE 1 Dimensions Approximate 2 BoxhasOnly5SidesasShown 3 UnderTestConditions Box Mustbe Insulated fromGtoundwithGround PostConnectedto Sh...

Page 426: ...veofsystem notbeingtested Opencrossfeed valve 2 Turnonbattery master switch Placepump switchofsystem beingtestedinautoposition 3 Turnonopposite fuelpumpuntilfuelpressure risesabove 20psiandshutpumpoff...

Page 427: ...10 90 29 10 00 9 Jan 10 90 29 10 00 10 Jan 10 90 29 10 00 11 Jan 10 90 29 10 00 12 Jan 10 90 29 10 00 13 Jan10 90 29 10 00 14 Jan10 90 29 10 00 15 Jan10 90 29 10 00 16 Jan10 90 29 10 00 17 Jan10 90 2...

Page 428: ...ack 8 Disassembly of PowerPack 11 Assemblyof PowerPack 11 Cleaning Inspectionand Repairof PowerPack 14 Assemblyof Reservoir 14 TestingReservoirfor Leakage 14 Disassembly of Manifold 14 Assemblyof Mani...

Page 429: ...ment of DoorSolenoid Valve 25 Disassembly of TimeDelay CheckValve 26 Assembly ofTimeDelay Check Valve 26 Installation andAdjustment of Inboard GearDoors Switch 26 PowerPackBenchTestAdjustment 26 Bleed...

Page 430: ...failure thedoorsolenoid valveinthepower packmoves spring pressure to OPEN doorposition andremains inthatposition Doors willnotopenuntilselector leverismoved to geardown position andgearextension cycl...

Page 431: ...ated lock located behind theinstrument panelaspartoftheselector assembly prevents leverfrombeinginadvertently moved totheupposition whiletheairplane isonthe groundorinflightbelow100 4 KIAS Tocycletheg...

Page 432: ...inepump Repl inoperative Lowpumppressure Repl ns Cable lineorobstruction Chec restrictingthetravel obstr required to fullyselect gearup ordown Selectorleverout of Adju adjustment Ifgearcompletes cycle...

Page 433: ...wn Checkfor loosewireor mounting or bentbracket Doors comeopenin flight Note Refer to32 00 00 FaultIsolation Landing Gear Chart1 Microswitch onpower packoutofadjustment Adjustmicroswitch Door solenoid...

Page 434: ...ngPressure HandPumpCheckValveCrackingPressure LandingGearPositionRelease TimeDelayValve HydraulicFluidRequired WeightDry PowerPack HydraulicFluidFlowRate BothPumpsOperating ReservoirOperatingFluidLeve...

Page 435: ...ingoperation powerpackoperatingpressurechecksand adjustments etc all performedwithoutoperatingengines The unitconsistsof an electric motordrivenhydraulicpump bypassvalve fluidreservoir filter pressure...

Page 436: ...SelectorValve Spring Return PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Main continued ShuttleValve MainGear Un LockActuator Cylinder Actuator Nose Gear ShuttleValve NoseGear Valve S...

Page 437: ...inued Horn Relay LimitSwitch Up MainGear LimitSwitch Left Down MainGear LimitSwitch Right NOTES 1 Gearisshowndownandlocked doorsclosed andselectorhandleindownneutral poweron 2 Poweron doorsclosed Powe...

Page 438: ...tunitbypassvalveopen c Starttestunit pumpmotor d Placegearselectorhandlein UPor DOWNposition Slowlyclosebypassvalveuntilsystem pressurehasreachedthat specifiedin29 00 00 Chart2 e Operategearusinglandi...

Page 439: ...of air Thefollowingprocedure will purgeair fromsystemand fill reservoir a Placeairplaneon jacks referto 7 10 00 b Cyclelandinggearthroughtwo complete cycles c Excessive foaminreservoirindicatesa possi...

Page 440: ...ryslowlyuntilhandletripsbackto neutral Ensuregaugepressure readingscomplywiththosein 29 00 00 Chart2 when handleistrippedto neutral Allowtime for timedelayvalveto open j Adjusthandlerelease if require...

Page 441: ...5 2100psi indicatedin 29 00 00 Chart2 e Adjustmentof powerpack handpumpreliefvalveiscompletedwithpowerpackinstalledin airplane Removecoverand drainfluidto gainaccessto adjustingscrew f Openbypassvalve...

Page 442: ...drainpluginstalled insideaccessopeningbehindhydrauliccomponents cover Connectfluid linefrom fittingto container raiseleverto openvalveanddrainreservoir c Disconnectelectricalconnectorat forwardendof p...

Page 443: ...5 PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A Main continued PowerPackInstallation Figure401 EFFECTIVITY 040 999 0 PAGE 9 29 10 00 Jan10 90...

Page 444: ...ner MAINTENANCE MANUAL A Main continued 1 DrainFitting 2 MainReliefValve 3 PriorityValve 4 Filter Hand PumpSuction PumpReliefValve TimeDelayCheckValve Locationof PowerPackComponents Figure402 EFFECTIV...

Page 445: ...ddoorsolenoidelectricalwiresfromterminalblock h Removefour boltsattachingmanifoldassembly Separatemanifoldassemblyfrom power pack beingsurenot to losetransfersleevesbetweenmanifoldandpowerpack Figure4...

Page 446: ...pet seat 7 arematched partsandmustbe replaced asanassembly PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A Main continued 36 0 55 56 57 Hydraulic PowerPack Figure 403 Sheet1of2 EFFECTIVIT...

Page 447: ...lePlate 48 O Ring 49 Reservoir 50 O Ring 51 Hand PumpSuction Filter 52 SnapRing 53 Filter HandPump 54 Hand PumpRelief Valve 55 AdjustingScrew 56 Spring 57 Stem 58 Body Secondary ReliefValve 59 Ball 60...

Page 448: ...ratehandpumpuntilreservoiris completelyfull Indicatedbyfluidcomingoutof ventfitting c Capreservoirventfitting d Operatetest handpumpto raisepressurein reservoiruntilpressuregaugeindicatesmaximum 50 ps...

Page 449: ...g 4 O Ring 5 Screw 6 TransferValve 7 Sleeve Transfer 8 O Ring Sleeve 9 Door SelectorSpool 10 Spool DoorSelector 11 Door SolenoidValveAssembly 12 Solenoid Door 13 O Ring Solenoid 14 Spring PlungerRetur...

Page 450: ...tor spoolintomanifold fromlanding gearhandle endof manifold Insert onlyuntil selector spooltaperisprotruding approximately 0 06inchoutmanifold end NOTE Ifselector spoolisnotprotruding approximately 0...

Page 451: ...MS28775 010 on bottomof plungerand O ring MS28775 008 ontop of plunger f Installplungerand lubricatedspringintomanifold g Lubricate threadsof retainer installintomanifold torqueto 25 inch pounds ands...

Page 452: ...ar MS20995C41 SafetyWire A Main continued 5 CamDetent 11 Lockwire 9 Arm 8 Pin 1 CamSwitch View A 6 ShaftInput Detent ShaftInputAssembly 7 ReturnCam Power Pack Handle Release Mechanism Figure 406 Safet...

Page 453: ...tdetentposition c Rotateinputshaftto neutralposition bringinginputshaftreturncamto horizontalposition d Holdinputshaftreturncamin horizontal neutral positionbyinserting0 125inchdiameterdrill orpunchth...

Page 454: ...lecenterline at knobcenterline isrequired to movehandle fromdetentbacktoneutral position Tocheckoperation ofgearselector handle mechanism placeairplane onjacks refer to 7 10 00 andoperate gearselector...

Page 455: ...le inupor down position andindetent aforceof3 1 2to 6pounds applied perpendicular to handle centerline at knobcenterline isrequired to movehandle fromdetent d Position control armonpower packinNEUTRAL...

Page 456: ...ottomand springintoreliefvalvebody Securewithadjustingscrew Adjustingscrew providesadjustmentof mainreliefvalveandmustbe installedflush 33 Adjustmentof MainReliefValve Figure403 Item1 a Withinputshaft...

Page 457: ...ssembly of DoorVentValve Figure403 Item26 a Removeadjustingscrewfromtop of retainer b Removeventvalvebodyfrompowerpackbody c Removespringandstem d Cutwire and removeretainerfromventvalvebody e RemoveO...

Page 458: ...kupringandO ringonfitting d Installvalveassembly inbody Torque to 55inch pounds 48 Disassembly of HandPumpRelief Valve Figure 403 Item51 a Remove adjusting screwattopofhandpumpreliefvalve b Remove han...

Page 459: ...umpSuctionScreen Figure403 Item48 a Installfilterintopowerpackbody Securewithsnapring 53 Adjustmentof DoorSolenoidValve Figure404 Item11 a Removecapsfromdooropenand doorclosefittingson powerpack b Con...

Page 460: ...block Figure 403 Secure to solenoid with plasticstrap NOTE Electrical wiresarecolorcoded andmustbematched whenreinstalling wires e Installplungers springs andbuttonintohandle release bodies Retain wi...

Page 461: ...htenedsoO ringsealsareon non threaded portionof fitting 60 Removal andInstallation ofHydraulic Filters Thehydraulic filters located onlower rightforward sideofeachengine firewall areremoved as follows...

Page 462: ...nds Againselect downposition andcheckhandle return time c Shutengine downandrepeat preceding steps forotherengine d Ifselector handle doesnotreturntoneutral duringoperation checkforonepump butdoes ret...

Page 463: ...enterplate to drivesideforproper reassembly CAUTION DONOTUSESCREWDRIVER ORSHARPTOOLTOSEPARATE PARTS DURINGDISASSEMBLY c Remove foursocket head capscrews securing rearside centerplate anddriveside Scre...

Page 464: ...PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Main continued 10 Center PlateAssembly Hydraulic Pump Figure 410 EFFECTIVITY 040 999 PAGE 30 29 10 00 Jan 10 90...

Page 465: ...e socket head capscrews andlocknut to60inch pounds m Whenpumpisassembled turndriveshaftbyhandandensure pumpturns freely Ifsticking or binding exist disassemble pump anddetermine problem Donotapplypowe...

Page 466: ...hsides DriveSide Visuallyinspectlapped surfacefor scratchesor scoring Lapsurface to remove any scratches Ifdeepscratches exist replace part SecondaryShaft Inspect shaftfordeep scratches inbearing area...

Page 467: ...606 intolines d Onebyone removecapsfromfirewallfittingsandconnectappropriatelineto fitting Do not spillhydraulicfluid previouslyput in lines e Afteroperatingengine checkhookupfor leaks 70 HandPump Eme...

Page 468: ...30 Stop PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A Main continued Handle Assembly 26 22 Screw 20 1 SnapRing HandPump Figure411 EFFECTIVITY 040 999 PAGE 34 29 10 00 Jan 10 90...

Page 469: ...nkandInstall quickclickpin I Lubricate O ringandinstall onseat m Install spring ball andlubricated seatintopumpbodysuction port Secure withsnapring 73 Cleaning Inspection andRepair ofHandPump a Clean...

Page 470: ...LIEFVALVE HANDPUMPMUSTBE OPERATED VERYSLOWLYASPRESSUREISINCREASED IF OPERATED RAPIDLY DAMAGE TO VALVECANOCCUR ASAIR WILLSLAMPARTS AGAINSTEACHOTHER e Ensure maximum gaugecomplies withthosein29 00 00 Ch...

Page 471: ...ERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Main continued SafetyWire 6 RodEnd 6 BackUp 7 EndCap 3 GT Ring 8 GT Ring GearActuatingCylinder NoseGear Figure413 EFFECTIVITY 040 999 29 10 0...

Page 472: ...n 10 90 30 60 00 13 Jan 10 90 30 10 00 10 Jan 10 90 30 60 00 14 Jan 10 90 30 10 00 11 Jan 10 90 30 60 00 15 Jan 10 90 30 10 00 12 Jan 10 90 30 60 00 16 Jan 10 90 30 10 00 13 Jan 10 90 30 60 00 17 Jan...

Page 473: ...ing 15 SurfaceScuffs 15 DeepScuffThroughNeopreneSurface 15 Holesor TearsThroughSurfaceSideof TubeArea 19 Holesor TearsThroughBacksideof TubeArea 19 Holesor TearsThroughTwoSides 19 HolesThroughDeicerEx...

Page 474: ...andArmRemoval 2 WiperBladeandArmInstallation 2 WiperBladeandArmAdjustment 2 30 60 00 Propellers 1 Description andOperation 1 Maintenance Practices 1 Deicer System Operational Check 1 Using theAmmeter...

Page 475: ...00 continued Propellers continued Installationof PropellerDeicerStrapsandWireHarness Balancing FinalElectrical Check OtherComponents PowerControland Relays Removalof the PowerControlRelays Installatio...

Page 476: ...eiceoperation Theoutboardwingdeicebootswill be referredto asthe A bootsandtheircontrollingdeicevalveas the A deicevalve The inboardwingdeicebootsandthe horizontalandverticalstabilizerdeiceboots will b...

Page 477: ...PIPER AIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Airfoil Description and Operation continued Surface Deice Schematic Figure 1 EFFECTIVITY 040 999 30 10 00 Jan 10 90...

Page 478: ...Check for stickingpoppet Clean Blowout linesandinspect connections Makeair leakagetest Deicersinflateslowly Inflationtime 6 5 seconds Linespartially blocked or notconnected securely Blowout linesandi...

Page 479: ...EUMATIC AIRFOIL DEICER SYSTEM Fault Cause Remedy Deicers deflate slowly Pressure regulator settoo low Readjust pressure regulator Linespartiallyblocked Overboard linefrom controlvalvepartially blocked...

Page 480: ...tch If testequipment doesnot indicatecompletecircuit completethefollowingchecks a Checkcircuitfromtimerto valveconnector to ground b Replacetimer referto PA 42 720 Advanced Trainer PartsCatalog 2 Usea...

Page 481: ...cator light on copilot circuit breaker panel comes on at 15 1 psig Replace pressure switch by removing turtleback cowl on left nacelle i Release system pressure Remove test apparatus j Reconnect syste...

Page 482: ...ator exposing adjustmentscrew 3 Loosenjam nuton screwand rotatescrewclockwiseto increasepressure counterclockwise to decreasepressure 4 Lockscrewinpositionwithjamnut 5 Reinstallplasticventcapon regula...

Page 483: ...5seconds See Outboard Wings Inboard WingsandEmpennage section CHART 2 OPERATING PRESSURES Recommended OperatingPressure PSIG 18 TestPressure PSIG MIN 16 MAX 20 8 100 HourInspection Ateach100 hour ins...

Page 484: ...nairplane orvulcanized whenboot istakenoffairplane a ColdRepair NOTE Materialsand suppliesrequiredforcold repairsarelistedin Chart3 1 ScuffDamage Repairs areonlynecessary whenscuffissevereandentirethi...

Page 485: ...eparticles withsolvent andrag b Cutpieceofsurface plymaterial P N74 451 23 to extend atleast1inchinall directions pastdamage c Maskoffdamaged bootarea1 2 inch larger inlength andwidththanthesizeof sur...

Page 486: ...No 4 Cement patching only CementBrushI j2 in 1 8in SteelStitcher EmeryBuffingSticks BuffingShield Thiscement willgivebestresults withthepatches inthiskit Thefollowingitemsmaybe procuredfromthe B F Goo...

Page 487: ...n ofdeicer f largepartsofdeicerstretch area arecracked orchecked to adepthofover0 005inch donotrepair Deicers withslightchecks instretchareacanbecoated withconductive cement Ifchecking isdeepbutrestri...

Page 488: ...ecementshavean extendedshelflife if keptunderrefrigeration from0 to 40 F CHART5 EQUIPMENT FORVULCANIZED REPAIRS PartNo Description Qty 74 451 B 74 451 B 2 74 451 B 3 74 451 B 4 74 451 40 74 451 41 74...

Page 489: ...efollowing steps 1 Before starting vulcanized repair thoroughly cleanlargeareasurrounding damaged portion anddamage portion of grease dirt ortalc Useneutral soapandwatersolution rinseclean anddrywithc...

Page 490: ...y thoroughly 5 Placemetalcuringsheetoverhollandand clampheatingelementinplace Ensuremetal curingplateis at least 1 inchlargeroverallthanheatingplate Handtightenheaterfirmly 6 Curefull allottedtimefor...

Page 491: ...INTENANCE MANUAL A Airfoil DescriptionandOperation continued Markingand CuttingScuff Figure801 RoutingScuff Figure802 BuffingEdgeof Repair Figure803 HoleThrough Surface ofTube Figure 804 EFFECTIVITY 0...

Page 492: ...ENANCE MANUAL A Airfoil DescriptionandOperation continued Rotatingto TubeFabric Figure805 CuttingSurfaceof Tube Figure806 Cementing Buffed AreaandPatch Figure 807 EFFECTIVITY 040 999 Applyingand Stitc...

Page 493: ...ner MAINTENANCE MANUAL A Airfoil Description andOperation continued PlacingandStitchingGum Figure809 RemovingTrappedAir Figure810 Masking Repair Figure 811 Applying Neoprene Putty Figure 812 EFFECTIVI...

Page 494: ...gh Backside ofTubeArea 1 Routeoff coatingdownto fabricat least3 4 inchbeyondcut washentirebuffedareaand cement 2 Cut fabricpatch wash cement applyfabricpatch and stitch Removetrappedare using hypoderm...

Page 495: ...adunder deicers withsealing compound EC 801 4 Remove sumpplugsfromairconnection grommets Remove sections ofdopedfabric usedtocovertheairconnection holes ifnecessary Drawoutendsofnon kink hose section...

Page 496: ...llelto inflatabletubes Roll edgeswith narrowstitcher roller CAUTION AVOIDEXCESSIVE SOAKINGORRUBBINGOF CEMENT WHICHCOULD REMOVE CEMENTFROMSURFACE 5 Removeall maskingtapeandclean surfacescarefullywithME...

Page 497: ...IPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Airfoil Description andOperation continued Pneumatic BootandFlowStripLocations Figure3 Sheet1 of2 EFFECTIVITY 040 999 Jan 30 10 00 Jan 10 9...

Page 498: ...0 AdvancedTrainer MAINTENANCE MANUAL A Airfoil DescriptionandOperation continued 11 Installation continued WingLeading Edge Centerline FlowStrip Pneumatic BootandFlowStripLocations Figure3 Sheet2 of 2...

Page 499: ...tionor until adhesionstrengthof 8 10poundsisobtained 12 Maintenance Cleandeicers withmildsoapandwatersolution Incoldweather washbootsinwarmhanger if possible Ifcleaning isdoneoutdoors useheated soapan...

Page 500: ...warmhanger andposition bootsinlinewithoneormore blastheaters Complete resurfacing before otherworkto allowtimefornewcoattocure 1 Cleandeicer thoroughly withIsopropyl Acetate 2 Roughen entiresurface of...

Page 501: ...o deicingsystemare listedinChart1 alongwithprobablecausesandsuggested remedies CHART 1 Sheet 1 of 5 FAULT ISOLATION ENGINE DEICING SYSTEM Fault Cause Remedy Ammetershowszero current All4 phases of the...

Page 502: ...f deicer leadandslipring lead Ifnovoltage find andcorrect breakinwiring withinbrushblockorno contact of brush to slipring Ifvoltage isfoundatdeicer leads locate andfixbreak fromdeicer to ground Ammete...

Page 503: ...and out of ammeter If lowor zerooutputandinput satisfactory replace ammeter If novoltage to ammeter locateand fix breakbetweenswitch andammeter Groundbetweenammeter and timer Disconnect harnessat tim...

Page 504: ...ortcircuit insystem Testtimer Iftimerdoesnot cyclewithvoltageat PinB replacetimerbut be sure shortcausingoriginalfailure hasbeenlocateandcorrected Ammeterflicksbetween 34 secondphaseperiods Looseconne...

Page 505: ...replacethe switch Relocateat least8 inches awayfrom inputwiringto radioequipment Cyclingsequencenot correct Rapidbrushwearor frequentbreakage Crossedconnections Brushblockout alignment Checksystemwir...

Page 506: ...cer phase begins CAUTION DONOTHOLDCONNECTION SODEICERBECOMESTOOHOTTO TOUCH NOTE Thetimeronlyoperates aslongastheground testswitch isactivated d Temperature riseofthebootsmustbenoticeable Iflocalhotspo...

Page 507: ...Checkof InletDeicers Ammeter ForReferenceOnly Wiring Diagram LeftPropellerand EngineAir InletLip DeicingSystem Figure 1 ForReference Only Ammeter WiringDiagram RightPropellerand EngineAirInletLipDeici...

Page 508: ...ont 28 0 1 0 ZoneA SheddingArea I SheddingArea 34 ON 25 5 ZoneB 102 OFF 1 1 SheddingAreaII SheddingArea 34 ON 25 5 D EngineAirInletIceProtectionSystem 1 Removalof IceDeflectorDoorTransmission Figure40...

Page 509: ...ced Trainer MAINTENANCE MANUAL D Engine Air Inlet Ice Protection System continued 12 BypassDoorAssembly 11 Hinge 10 Bolt Washer BushingandNut 9 RodAssembly 8 Pin 7 LimitSwitches MountingBracket 12 VIE...

Page 510: ...ErosionCoat PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL D EngineAir InletIceProtectionSystem continued A A ZoneB 3 Shedding Area ZoneC I EngineAir InletLipAssembly Figure402 EFFECTIVITY...

Page 511: ...ndsleeve Applycoatingof AircraftActuatorGrease MIL G 23827 to transmission shaft f Repacktransmission if disassembled 75 percentfull withDukesgrease P N2196 74 1 4 Adjustmentof EngineIce Protection Sy...

Page 512: ...Windshield WiperMechanism Windshield wipersarestandardequipmenton leftand rightwindshield Tooperatewindshield wipers turn switchon lowerrightsideof instrumentpanelto HIGHor LOWposition Whenturning wi...

Page 513: ...nwiperswitch momentarily to PARK position c WiperBlade andArmRemoval Figure 401 1 Cutlockwire atboltsecuring armtoserrated converter shaft remove bolt 2 Loosen adjustment nutto relievearmtension Remov...

Page 514: ...Centered Under Arm WireWrappedAroundNut WireWrapped AroundArm WiperBlade TvoicalWindshield WiperBlade 10 Bolt Washer Nut 7 WiperShaftCover 6 Converter 10 Bolt Washer Nut 9 Wiper Mounting Bracket 4 Dri...

Page 515: ...tat plugandgroundlead disconnect f Plugauxiliarypowerin turndeicerswitchon andcheckoperationof icedeflectordoor underneath air inletscreenby lookingbackthroughair inlet anddowneachengineside Also chec...

Page 516: ...ocheckvoltages orcontinuity 3 HelpfulTips a If ammeterreadingdropsto one thirdnormalcurrent one heatercircuitis open b Excesscurrentreadingon ammeteralwaysindicatespowerleadisshortedto ground Locate a...

Page 517: ...ee30 20 00 Chart1forfault isolation d Ensure allclamps clips mountings andelectrical connections aretight Check forloose broken ormissing safety wire e Check deicer bootsforwrinkled loose torn orcutar...

Page 518: ...act Figure509 If incorrect loosenmounting screws twist block andensureproperclearancelimitswhentightening CAUTION DONOTHOLDGROUNDTESTSWITCHON FORANYLENGTHOFTIME WHICHCOULDCAUSEOVERHEATING h Operate de...

Page 519: ...ure503 7 Replacement Of Brushes WARNING USEONLYB F GOODRICH BRUSHES DONOTSEPARATE UNITSWHEN REPLACING BRUSHES FAILURE TO FOLLOW THESEINSTRUCTIONS MAY RESULTINFAILUREOFTHE DEICERUNIT NOTE It is notnece...

Page 520: ...16inchoftheendofthebarewire as shown 2 Installringterminal sotheendoftheinsulating tubingispositioned inside theinsulated jacketoftheterminal sonobarewireisexposed 3 Crimpterminal inplacewithrecommend...

Page 521: ...shes arereplaced a Notedirection ofslipringrotation b Place template against faceofbrushassembly c Slide brushassembly forward untiltemplate meets sliprings CAUTION SLIDELOADSONBRUSHESSHOULDBEAVOIDED...

Page 522: ...n Angle ResultsCausedBy AllowingTooGreatOf A Distance Between BrushHousingAnd SlipRings CorrectFore Aft Alignment IncorrectAlignment ModularBrushAssemblyAdjustment Figure509 9 BrushModuleReplacement M...

Page 523: ...between starwasher andhousing d Reconnect aircraft wireharness andensure adjacent ringterminals arenottouching e Install assembly ontheaircraft andcheckalignment 1 BrushModule Assembly 2 NylonSpacer 3...

Page 524: ...liprings 6 Ensure minimum distance forrefacing slipringassemblies isnotlessthan1 160inch between copper surfaces andlegsof assembly NOTE Ifsolder orbrazeconnection onunderside ofslipringisexposed whil...

Page 525: ...0 020inchthickrubberabout1 4inchlargeron allsidesof repairarea Ensureprotectivepaperison cementedsideand applymaskingtapeon opensideto preventpatchfromcurlingascementdries Stripoff protectivepaperand...

Page 526: ...n of Surface Priorto Installation of Deicer Preparepropellerbladesurfacefor properdeicerbootsinstallationasfollows PropellerBladeProtection 1 Markandcut maskingtapesamesizeas propellerdeicerincludingf...

Page 527: ...CE MANUAL B Maintenance Practices continued 11 DeicerBoots continued e Preparation of SurfacePriorto Installation of Deicer continued CenterLine r Pattern Masking Tape PropellerDeicerInstallation Figu...

Page 528: ...apetoedges of glazed sidebeforeapplying cement to unglazed side Remove tapebeforeinstalling deicer 4 Applyevenbrushcoatof EC1300L or EC1403 cement oncleaned surface of propeller bladeimmediately after...

Page 529: ...SEMETALSTITCHERONDEICERBODYTOAVOID DAMAGING RESISTANCE WIRES 3 Applyoneevenbrushcoatof sealeraroundedgesof installeddeicer 4 Removemaskingtapefrom bladeimmediately afterapplyingsealer 5 Allowcementto...

Page 530: ...wfiller to dryfor 6 hours 7 Applynewmarkingtapeapproximately 0 125inchbeyondfillerto allowapplicationof sealerdirectlyto mountingsurface Applyoneevenbrushcoatof 82 076 1 2sealer orC 19861 C16176 paint...

Page 531: ...ingasfollows 1 Removebrushblockand disconnect timerand enginewire harnessat convenientlocation or retractbrushes Slipsheetof paperbetweenbrushesand sliprings NOTE Resistance valuesbelowapplyonlyto dei...

Page 532: ...26ohms 5 Reconnect disconnectedcircuitsand removeanypapershims j Installationof PropellerDeicerStrapsand WireHarness 1 Fasten deicerleadstripto bulkhead 2 Attach deicerstrap to studsonspinner bulkhea...

Page 533: ...er or switches If inoperative replace components withproperparts Forotherrepairor maintenance problemsnotcoveredinthis manual inquireat Aerospaceand DefenseProductsDivisionofthe B F GoodrichCompany Ak...

Page 534: ...ractices continued 11 Deicer Boots continued ViewA ViewB DeicerPowerControlRelays LEACHRELAYCOMPANY KC D4A PropellerDeicerTimer B F GOODRICH 3E1150 12 AftOfFirewall Forward OfFirewall PowerControlRela...

Page 535: ...randwithdeicerswitchon checkvoltagefrompin B of harnessplugto ground If no systemvoltageexists faultis notwithtimer If system voltageexistsat pin B checkgroundcircuitfrompinG to groundusingohmmeter If...

Page 536: ...CONTENTS 31 50 00 31 50 00 31 50 00 31 50 00 31 50 00 31 50 00 31 50 00 31 50 00 31 50 00 31 50 00 31 50 00 CHAPTER DATE SECTION PAGE 1 2 3 4 5 6 7 8 9 10 11 PAGE DATE Jan 10 90 Jan 10 90 Jan 10 90 Ja...

Page 537: ...of Annuncitator Panel Removal ofAnnunciator Controller Installation ofAnnunciator Controller EFFECTIVITY 040 999 PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL CHAPTER31 INDICATING RECORDI...

Page 538: ...ing lightstrings enginefire indicatinglights a controller computer a horn and actuatingcomponents inthe affectedsystemsofthe aircraft Components are alsoincorporated for testingthe operationof the ann...

Page 539: ...ns indicator lightbulbsthataregrouped together andextendacross upper centerportion of instrument panelbelowglareshield Figures 1and401 Theannunciator controller issecured to instrument panelsupport br...

Page 540: ...nnect annunciator panelconnectors c Removescrewssecuringannunciator panelto glareshield Removeannunciator panel 2 Installation of AnnunciatorPanel Figure401 a Placeannunciator panelintopositionon glar...

Page 541: ...elsupport assembly Secure with screws b Attachelectrical connectors to annunciator controller c Placecenterpanelintoposition Secure withscrews Remove FourScrews ForAccess To Grimes PartNumber For Annu...

Page 542: ...r Hot CabinPress BaggageDoor CabinDoor L EngineFire R EngineFire ECSOvertemp L IceDoor R FireExt Inop L FireExt Inop R IceDoor G H J K L M L FuelFilter R Ign On L ChipDetect L Grnd Bleed L Ign On R Ch...

Page 543: ...Warning Red Master Warning Red Master Warning Red Master Warning Red Master Warning Red Master Warning Red Master Warning Red Master Warning Red Master Warning Red Master Warning Red Master Warning Re...

Page 544: ...er Advisory Amber Advisory Amber Advisory Amber Advisory Amber Advisory Amber Advisory Amber Advisory Amber Advisory Amber Advisory Amber Advisory Amber Advisory Advisory Amber Advisory Amber Advisory...

Page 545: ...ispartoffireextinguisher switch EngineFireExtinguisher Inoperative Annunciation Disconnect wire E36M from left fire extinguisher E36L for right fire extin guisher Ensurerespectivefire extinguisherligh...

Page 546: ...nDoorAnnunciation FuelHeatAnnunciation Disconnectwire P11C 20in battery compartment Battery hot light and masterwarninghornlight mustcomeon Reconnectwire and lightmustgo out Openbaggage door Baggage d...

Page 547: ...trim circuit breaker onlefthand breaker panelandtheelectric trimannunciator lightand master warning hornandannunciator mustactivate Locateflap systemtest switchon lowerinstrumentpanel Moveflap selecto...

Page 548: ...witchesto the LOposition and ECSselectswitchto GND Withenginepowerlevers at groundidle ensureleft and rightGROUNDBLEED amber annunciator lightsare on Advancepowerlevers slowly and at 70 to 75 Ng ensur...

Page 549: ...3 Jan 10 90 32 10 00 13 Jan 10 90 32 40 00 4 Jan 10 90 32 10 00 14 Jan 10 90 32 40 00 5 Jan 10 90 32 10 00 15 Jan 10 90 32 40 00 6 Jan 10 90 32 10 00 16 Jan 10 90 32 40 00 7 Jan 10 90 32 10 00 17 Jan...

Page 550: ...ER 32 LIST OF EFFECTIVE PAGES continued CHAPTER SECTION CHAPTER DATE SECTION PAGE PAGE DATE 32 60 00 32 60 00 32 60 00 32 60 00 32 60 00 32 60 00 32 60 00 1 2 3 4 5 6 7 Jan 10 90 Jan 10 90 Jan 10 90 J...

Page 551: ...sembly 18 Cleaningof MainGear DoorAssembly 18 Repairof MainGearDoorAssembly 19 32 20 00 NoseGearand Doors 1 FaultIsolation NoseGearand Doors 1 Removalof NoseGear 3 Installationof NoseGear 7 Adjustment...

Page 552: ...Cylinders 9 Inspectionof MainGearActuating Cylinders 9 Cleaningof MainGearActuating Cylinders 11 Repairof MainGearActuating Cylinders 11 Removalof NoseGearActuatingCylinder 11 Disassembly of NoseGearA...

Page 553: ...B F Goodrich 9 Repairand Replacement of Nose WheelAssembly B F Goodrich 10 RemovalandDisassembly of Nose Wheel Cleveland 10 Assemblyand Installation of Nose Wheel Cleveland 11 Inspectionof NoseWheelAs...

Page 554: ...BleedingProcedure 22 Tires 24 32 50 00 Steering 1 FaultIsolation Steering 1 Removalof NoseGearSteeringAssembly 2 Installationof NoseGearSteering Assembly 4 32 60 00 Positionand Warning 1 Descriptionan...

Page 555: ...rnot lockedindown position Uplockcableout of adjustment Actuatoroutof adjustment Tireout of balance Wornor loosewheel bearings Worntorquelinkbolts and orbushings Insufficientair and orfluid instrut De...

Page 556: ...nutwithwashersholdingthe linkon its pivotshaft Slide linkfromthe pivotshaft 8 Thepivotshaftis removedby reachingthroughpivotshaftbracketaccessholeand removingthe boltsecuringthe shaftto theshaftfittin...

Page 557: ...MAINTENANCE MANUAL A MainGearandDoors continued 29 NOTE Referto nextpage forcallouts AftTrunnion Bolt Retainer Plate Forward Trunnion Bolt Retainer Plate MainGearInstallation Figure401 Sheet1of 3 EFF...

Page 558: ...UpperForward 32 Switch Downlock 33 Bracket Switch 34 Hook Downlock 35 SideBrace Lower 36 SideBrace UpperAft 37 Plate Mounting 38 BoltAssembly 39 ValveAssembly 40 Housing Gear 41 Switch Squat 42 Link T...

Page 559: ...A r Bushing Bushing 42129 9 42129 10 Washer A MainGearand Doors continued Sketch A 2 Req MainGear Installation Figure 401 Sheet3 of 3 EFFECTIVITY 040 999 32 10 00 PAGE 5 32 10 00 Jan10 90...

Page 560: ...ng holeinthe fitting b Withboltsintheirfittings install therequired shimstocorrectly space fittingaway fromthesparforproper positioning ofthepivotshaft c Withshimsontheboltsofthefitting carefully inse...

Page 561: ...aingearadjustment operation and alignment 4 Adjustmentof MainLandingGear a Withthe airplaneon jacksandgear extended disconnectinboardand outboardgeardoor operatingrods keepingdoorsinthe openposition b...

Page 562: ...inued MATERIAL Steelorhardaluminum holesfor installationof bushing 1 0 x 083x 13 251Tube sightslotandelongated hole 1 0 x 1 0 Rod 125 x 18 062x 3 125 Plate 1 0x 083x 1 25Tube 1 0x 083x 1 25Tube 18 085...

Page 563: ...ating properly proceed asfollows 1 Engage hookoverpin 2 Forcesidebracelinkage upward untilthehookstrikes thepinandstopsmovement 3 Check gapbetween sidebracestopsurfaces andensure it doesn t exceed 0 0...

Page 564: ...arts 3 Asup lockrollerapproaches the hook operatehookby handuntil rolleris engaged CAUTION BESUREALL RODENDSHAVESUFFICIENT GRIPPINGTHREADSO A WIRE CANNOTGOTHROUGHTHECHECKHOLEINTHE ROD 4 Toensureuplock...

Page 565: ...overalignmentprocedure c Placea straightedgeno lessthan20 feet longacrossthe frontof bothmainlandinggear wheels Buttthe straightedgeagainstthe tiresat the hub levelof landinggear Ensurethe straightedg...

Page 566: ...arbetween theblockandsquare thewheelistoed out andmustbe realigned Ifagapappears attheforward endbetween theblockandthesquare thewheel hastoomuchtoe inandmustberealigned fora 0 5degree toe in g Tocorr...

Page 567: ...ing surfaces forcorrosion freemovement and lubrication g Inspect general condition of limitswitches andwiringforfraying poorconnections or conditions leading tofailures h Attach upperandlowerdraglinks...

Page 568: ...r ringfromtheannular slotat thebottom of oleohousing f Pullpiston tubewithcomponent parts fromhousing cylinder g Theforktubecomponents areremoved byreaching inthetubeandpushing outtheupper bearing ret...

Page 569: ...in Retainer 19 8 Bearing Upper 37 9 Spacer 10 O Ring Gasket 11 Bearing Lower 36 12 O Ring Packing 13 WiperStrip 39 14 Washer 15 Ring Retainer 16 O Ring Packing 17 Plug 18 GreaseFitting 19 Valve Air 20...

Page 570: ...RAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A MainGearandDoors continued 7 NOTE Refer to previous pageforcallouts VIEWA MainGearOleoStrutAssembly Figure402 Sheet2of 2 EFFECTIVITY 040 999 Jan10 9...

Page 571: ...rOleo a Inspectthe landinggearoleoassemblycomponent forthe following 1 Bearingsand bushingsfor excesswear corrosion scratches andoveralldamage 2 Retainingpinsfor wearanddamage 3 Lockringsfor cracks bu...

Page 572: ...using Retract gearandobserve theamount ofgap Shorten rodsbyseveral turnsoftherodends andretract thegearagain Repeat untilthedoorclosed properly c Adjusttheinboard doorusingsameprocedure usedfortheoutb...

Page 573: ...replacetire if necessary Wornor loosewheel Replaceand oradjustwheel bearings bearings referto 32 40 00 Worntorquelinkbolts Replaceboltsand or bushings and orbushings referto 32 40 00 Strutbottomson no...

Page 574: ...HART 1 FAULTISOLATION NOSELANDINGGEARAND DOORS Sheet2of 2 Fault Nosegearfailsto steer properly Cause Oleocylinder binding in struthousing Onebrake dragging Steering armrollersheared attopof strut Reme...

Page 575: ...rdisconnecting thegearoperating rodasfollows 1 Remove thedownlockspring andtheeyeboltattached totheidlerlink 2 Disconnect thegearactuating cylinder rodfromthelink 3 Remove thelinkpivotboltbysliding th...

Page 576: ...IPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCEMANUAL A NoseGearand Doors continued NOTE Referto Page6forcallouts NoseGearInstallation Figure401 Sheet1of3 EFFECTIVITY 040 999 PAGE 4 322000 Jan 10 9...

Page 577: ...AdvancedTrainer MAINTENANCE MANUAL A NoseGearandDoors continued 56 25 52 57 57 33 Sketch B 36 Sketch A Sketch C NOTE Refer to Page 6forcallouts NoseGearInstallation Figure401 Sheet 2 of3 EFFECTIVITY...

Page 578: ...acket DownSwitch Tab DownSwitch Switch GearDown Spring DoorActuator Rod End Cylinder 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 RodEnd RetractionRo...

Page 579: ...on chart refer to 12 20 00 Chart3 f Theidlerlinkisinstalled asfollows 1 Alignbolt holeinthe linkwithlugholesof supporttubeandwithdownlimitswitchcontact bossto the right 2 Insertheadof pivot boltintoho...

Page 580: ...nut backalongroduntiladjustment is complete 5 Pullactuating cylinder barreldownandforward untilactuator attaching boltisatthe bottom of theslotsinattachment bracket 6 Rotate draglinkassembly byhandunt...

Page 581: ...no hydraulicpressureon the system 3 Removecotterpinswhichsafetythe nutssecuringbothupperdrag linksto their attachment platesandthe lowerlinkto the gearhousing 4 Placethe tooltubethroughthe elongatedho...

Page 582: ...ntheactuator untiltheuplockbearing clearsthe inside oftheuplockhooksurface by0 030to0 060ofaninch Tighten thelocknut onthe stroke controlstop refer to 32 20 00Figure401 k Withthegearupandlocked closeo...

Page 583: ...apa chalkline extendingseveralfeet beyond eachmark g Placethe rubberpedalsinneutralposition referto 32 20 00 Figure 503 NOTE Theruddercontrolsystemmustbe properlyriggedbeforealigningnosegearsteering h...

Page 584: ...torque tube NOTE Toensurefull travelof the nosewheel ensureno gapsexistat pointswherethe steeringarmtravelbushingscontactwiththe steeringbellcrank 6 Adjustment ofLanding GearPropeller Reverse Switch T...

Page 585: ...heminimum tension is4 pounds Thischeckisperformed byfastening afishtypescaletothehookandspring Pullsteadily against thehookandspring to getareading d Inspect theuplock hookforwearandoversized bearing...

Page 586: ...deoffthetube theupper bearing spacer lowerbearing withouter andinnerO rings wiperstrip washer andretainer ring k Toremove theorificetube remove thelargeboltoftheorifice tubeandlockplatefromtopof thecy...

Page 587: ...iston 27 ShimmyDampener 28 BoltAssembly 29 BoltAssembly 30 Boltsand SafetyWire 31 Bracket 32 Bushing 33 Stud DoorUplock 34 Placard Service 35 Housing Oleo 36 Bushing 37 Bolt Cap 38 Bolt 39 Plug Filler...

Page 588: ...PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCEMANUAL A NoseGearandDoors continued SEE VIEWB VIEWB NoseGearOleoStrutAssembly Figure402 Sheet2of 2 EFFECTIVITY 040 999 PAGE 1 32 20 00 Jan 10 90...

Page 589: ...endbearing outonefullturn 5 Secure therodendtothebracket withbolt washer andself locking nut k Lubricate thegearassembly Refer to 12 20 00 Chart3 andFigure302 I Service theoleostrutwithfluidandair Ref...

Page 590: ...perstripupintotheoleohousing withthetapered edgedown Slidetheretainer washer andsnapringupthepiston tube Insert themintotheoleohousing Using snapring plierstocompress thesnapring install it intotheann...

Page 591: ...actorily e If gearfailsto remainretractedafterthe cockpithandlereturnsto neutral it is necessaryto readjusteitheror boththe followingitemsuntilgearlocksup 1 Increaseactuatorstrokebyturningoutthe strok...

Page 592: ...to 32 30 00 Figure 1 employsa logiccircuitwhichsensesgearsnotextended Whenthe buttonis pushed the remaining gearsareextendedand lockedinplace The system worksso ifone or moregearsfail to extendandthe...

Page 593: ...llowing PageForCallouts PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Extension andRetraction continued 4 Emergency Extension System Installation Figure1 Sheet1of 2 EFFECTIVITY Jan10 9...

Page 594: ...Filter N Reservoir P LandingGearSelectorValve Q SelectorValveDetent R SelectorValveSpringReturn S ElectricalSwitch T ElectricalConnector 11 PressurePortValve 12 SuctionPortToggleValve 13 HandPumpChec...

Page 595: ...fety switch Gearretractsor extends beforethe doorsopen Priorityvalveleaksin powerpack Checkpriorityvalve crackingpressure Solenoidvalvestuckin closedposition Microswitchon power packout of adjustment...

Page 596: ...ANDRETRACTION Sheet2 of 2 Fault Maingearfailsto lock up Nogreenlightonpanel whengearsaredown Cause Uplock rodoutofadjustment Actuator outofadjustment Lockswitchdefective oroutofadjustment Gearnotlocke...

Page 597: ...matic linetotheexplosive bottle h Charge bottlewithdrynitrogen to pressure indicated ontheplacard mounted onthewheel well nexttothefillvalve refer to 32 30 00Figure1 i Perform functional testcovered i...

Page 598: ...seGearActuator 10 NoseGear 11 MainGearBottle Left 12 MainGearBottle Right 13 ShuttleValve Left MainGear 14 UnlockActuator Left Main 15 LeftMainGearUpLock 16 LeftMainGearActuator 17 LeftDoor ShuttleVal...

Page 599: ...AULIC FLUID 5 Testing of Emergency Blowdown System The blowdownsystem whichconsistsof threeindividualblowdownsystems musthaveeachunit individuallytested a Withtheairplane firmlyjacked up disconnect ap...

Page 600: ...ferto 32 30 00 Figure401 Lubricateall partswithhydraulicfluid MIL H 5606 priorto assembly a InstallGT ringon piston b InstallO ringandbackupon exteriorof end cap c InstallGT ringand scraperon interior...

Page 601: ...Cylinder Body GT Ring MainGearActuating Cylinder Figure401 EFFECTIVITY 040 999 PAGE10 32 30 00 Jan10 90...

Page 602: ...overodend c Cutsafetywire and remove Removenut key andstopfrom piston d Removesafetywire and endcapfromcylinderbodybyunthreadingendcapand pullingout the piston e Slideend capfrom piston 16 Assemblyof...

Page 603: ...0 AdvancedTrainer MAINTENANCEMANUAL A Extension andRetraction continued Piston O Ring BackUp EndCap GT Ring Scrapper stop Nut Key Safety Wire Key RodEnd NoseGearActuating Cylinder Figure402 EFFECTIVIT...

Page 604: ...lishing outsmallscratches burrs etc andreplacing parts 21 Removal of GearDoorActuating Cylinders a Withmaster switchoff actuate handpumphandle tobringgeardooropen b Disconnect hydraulic linesfromactua...

Page 605: ...0 AdvancedTrainer MAINTENANCE MANUAL A Extension and Retraction continued EndCap Piston GT Ring SafetyWire O Ring Nut Nut O Ring Ball Ring Spring SafetyWire BackUp Race Plunger BackUp ClevisEnd GearDo...

Page 606: ...linders a Positioncylinderon its mountingbracket Securewithattachmentbolts b Extendcylindercontrolrodenoughto attachrod endto door Securewithattachment bolt c Connecthydrauliclineto cylinder d Tobring...

Page 607: ...es Tireoutof balance Checkbalanceand replace duringfasttaxi takeoff tire if necessary and landing Wornorloosewheel Replaceand or adjustwheel bearings bearings Mainlandinggear Tireoutof balance Checkba...

Page 608: ...pin Ifpossible useanarborpress 3 Assembly andInstallation of B F Goodrich 3 1392 MainWheel referto32 40 00Figure 401 NOTE Wheninflating tiresonBFGwheels allowassembly tostandat least12hoursfortire and...

Page 609: ...ective finishputonwheel halves atthefactory isgoldincolor DowNo 7or IriditeNo 15 Ifcorrosion cannot beremoved bysanding downto baremetal withinlimits specified in32 40 00Figure402 takewheel halfoutof...

Page 610: ...overexterior oftireandcheck for leaks Checktirepressure after 24hoursfora reading of 105to 110psi Ifpressure lossexceeds 5 psi check tirefordamage andrepair or replace asnecessary NOTE Applygrease spa...

Page 611: ...rethe tire beadheelscontactthe wheel 2 Withdye checkor fluorescentpenetrant inspectthe beadseats tubewell andespecially the web junctionareas d Inspectall areasfor nicks Forrepairlimitsof the BF Goodr...

Page 612: ...720 AdvancedTrainer MAINTENANCE MANUAL A WheelAssemblies continued NOTE Fordetailedrepairprocedures refer toB F G Manual B Theboltholesmaybereamed to 0 345max dia typicalof bothwheelhalves 0 040radius...

Page 613: ...ustbetakenoutof service 7 Replacement of WheelBearingCup a Removebearingcupasfollows 1 Heatwheelsub assembly inboilingwaterfor30 minutesor inan oven notexceeding 80 C 150 F for 20 minutes 2 Removesub...

Page 614: ...langes by pressing withheels ofthehands oratirepress e Remove nuts washers andtieboltsfromthewheel Separate wheelhalves remove thetire andremove thevalvestemassembly if installed NOTE Bearing cupsarep...

Page 615: ...not usean impactwrenchto applyfinal torque Usea presethandtorquewrench only e Inflatetire referto 6 00 00 Chart 1 andtestfor leakage f Repackwheelbearingswithgrease MIL G 3545C and lubricatecups Place...

Page 616: ...allpartscontaining visiblecracks Replace partsthataredamaged beyond repair d Replace packing andgrommet ateachoverhaul 13 Removal andDisassembly ofNoseWheel Cleveland refer to32 40 00Figure 403 a Plac...

Page 617: ...or oftireandinspect forleaks NOTE Bubble formation around sidewall ventsontireisnormal during waterorsoapsolution test f Ensure tirepressure after24hoursindicates areading of76 80psi Ifpressure lossex...

Page 618: ...tion Brakes Fault Hydraulic fluidleaking frompistonarea Fluidleaking from bleeder valves or reducer fitting Insufficientclearance i e DISKCANNOTBE MOVEDWITHHANDS CHART 2 FAULTISOLATION BRAKES Cause Re...

Page 619: ...tostep d forentirebrakeassembly removal 1 Makesureallhydraulic pressure isoffbrakes 2 Remove tenanchor boltsretaining pistonhousing assembly inalignment withthebrake torque plate Becareful nottoletth...

Page 620: ...e corrosion mustberemoved byhand usinga medium gritcarbide or wet dry sandpaper CAUTION BE SURETO CLEANOFFTHE DISC CARRIER ANDALLLININGAFTER WORKINGONTHESEPARTS PREVENTING ANYCHANGEOF SCORING AFTERREA...

Page 621: ...e pistonhousing sopenside up 2 Installcarrierswithliningson theirpistons 3 Laydisc carrier assemblyoverandliningsontothe pistonhousing 4 Withcarriersand liningsinstalledon torqueplate alignspacerplate...

Page 622: ...CHART 3 DiskCarrierand Carler Lining and InspectionAreas Linign Assembly Torque Button Assys Thickness Max 0 519 0 265 Min 0 370 0 160 Dishing Max 0 050 0 025 Flatness Min 0 000 0 000 I D Max 7 000 7...

Page 623: ...on spring washerseal andvalveonto the pistonrod Allowthe valveto extendintothe baseof the piston Slidethe O ringand washerinplace Securewithself lockingnut b InstallO ringsealon packingglandandslidesp...

Page 624: ...Push Rod from Left RudderPedal Refer ToFollowing PageForSpecific CylinderAssembly Installation RudderPedalArm Assembly Pilots Left 10 23Master Cylinder RudderPedal RudderPedalBellcrankAssembly Push Ro...

Page 625: ...E MANUAL B BrakeAssemblies continued 10 63 Pilot s Right Brake Cylinder 10 36 10 11 Copilot sLeft Brake Cylinder Copilot sRight Brake Cylinder Pilot sLeft BrakeCylinder Master CylinderInstallation Fig...

Page 626: ...corrosion etc b Inspect general condition ofcylinder fittingthreads c Checkpistonandvalveforscratches burrs corrosion etc 13 Cleaning of BrakeMaster Cylinder a Cleancylinder partswithasuitable solven...

Page 627: ...gbracket d Capline openingsto preventcontamination of system 16 Disassembly of ParkingBrakeValve referto 32 40 00 Figure 407 a Removetwo fittingsfromoutsidethe valvebody A valvespringis heldinplacebyt...

Page 628: ...andspring 18 Cleaning of Parking BrakeValve a Cleanvalvepartswitha suitable solvent b Drythemthoroughly 19 Repair of Parking BrakeValve Repair to valveislimited to smoothing burred orscratched surfac...

Page 629: ...ENANCE MANUAL B BrakeAssemblies continued Catch Tank 5 Gallon Airplane Reservoir Left Pilot sBrake MasterCylinder Dual Parking BrakeValve Open Right BleedPort t Regulator Shop Air Brake Bleeder FillWi...

Page 630: ...alancer ItemNo Item 1 Base 2 Tee 3 Sides 4 Axle 5 Nuts 6 Spacer Spacer 7 Bushing Bushing 8 Pipe Bearings Dimensions Material Specifications C 12x 11 0 1902024T3clad aluminumalloy 2 5 x 2 x 11 0 190202...

Page 631: ...mine causeandcorrect referto 32 40 00 Steeringarm rollersheared Replacedefectiveroller at top of strut Nosegearshimmies Internalwearin shimmy Replaceshimmydampener duringfasttaxi takeoff dampener and...

Page 632: ...onotrotaterodendbearings unless asanadjustment tothenosegearsteering d Remove required shelfandfloorpanels e Usethefollowing instructions forremoval of thetorquetubeattached totherudder control sector...

Page 633: ...ed Trainer MAINTENANCE MANUAL A Steering continued Rudder Pedal Assembly Pushrod Nose Gear Steering Tube RudderControlCables Compensating Bellows RudderControlSector Bulkhead Sta 57 00 NoseGearSteerin...

Page 634: ...Thebungee tubeisattached toboththeinboard steering armandnosegearprimary drivearm Thebungee tubeisremoved byreaching intothewheelwell disconnecting theaftendof the tubetotheinboard steering arm pivot...

Page 635: ...olenoid cabinpressuredumpsolenoid iceprotectionselector switch gearlocksolenoidandhigh lowselectionforthe stallrecognitionsystemliftdetectorheat 2 FaultIsolation Positionand Warning CHART 1 FAULTISOLA...

Page 636: ...withgearup and locked Flashingred lightand warninghornfail to operatewhenpower from bothenginesis reducedbelow150 foot poundsof torque Powerleverswitchesare faulty Powerleverswitchout of adjustment Do...

Page 637: ...indicatorlight inthecockpitmustcomeon whenthe downlockhookis loweredwithin0 030to 0 069inchof bottominginthe hookslot ofthe lower sidebracelink Usethe followingcheckandadjustmentprocedure 1 Byhand rai...

Page 638: ...justgearup lockswitchtowardthe hookuntilit actuates Theredindicatorlightin cockpit mustgo out NOTE Maingear up switchesmustbe actuatedto extinguishthe red light d Extendand retractgearto ensurepropera...

Page 639: ...destal directly under thepower levers Eachswitch actuates thewarning horn a Theswitches areremoved fromtheirmounting brackets asfollows 1 Removetop coverplatesof pedestal Oneisforwardof the controllev...

Page 640: ...hekeeper tube Secure keeper tubeinframe b Installcontrolleverassembly inpedestal housing Secure withcapboltsandscrews c Install frictionknobwithwasher ontheendofthelevershaftattherightsideofthepedesta...

Page 641: ...versfor adjustment of switches 3 Shutdownengines 4 Setpowerleverat locationsmarked Withadjustmentscrewon switchbracket adjust eachswitchseparatelytowardactuatorangleuntilswitchactuates The adjustments...

Page 642: ...FFECTIVITY 33 CONTENTS 33 00 00 33 00 00 33 00 00 33 00 00 33 20 00 33 40 00 33 40 00 33 40 00 33 40 00 33 40 00 CHAPTER DATE SECTION PAGE 1 1 1 2 3 4 1 1 2 3 4 5 PAGE DATE Jan 10 90 Jan 10 90 Jan 10...

Page 643: ...Installation of Dome Light 3 33 20 00 Passenger Compartment 1 Overhead Reading Lights 1 Removal of Overhead Reading Lights 1 Installation of Overhead Reading Lights 1 33 40 00 Exterior 1 Landing andT...

Page 644: ...andswitchpanelinformation 1 WarningLightSystem a AnnunciatorPanelLampTest Theannunciator panelis locatedabovethe instrument panel Pushthe PUSHTO TESTswitchto checkoperationof lamps 2 Fluorescent Glare...

Page 645: ...off24Vdcbuspower Reconnect coaxends 12 Disconnect coaxleadsmarked 1LFV201064AA and1 LFV202064AA atthepilot s position 13 Apply 24Vdcbuspower andhaveassistant adjust theFV1potentiometer to 375Vacat the...

Page 646: ...ingdimmercontrolto accesspanel Separatepanelfrom dimmercontrol b Repairof DimmerControlAssembly Replacement partsareorderedfromthe partscatalog SeeFigure801for dimmercontrol circuitry c Installation o...

Page 647: ...Control Plac 28 VDC PIPERAIRCRAFT PA 42 720 AavancedTrainer MAINTENANCE MANUAL A GeneralCompartment continued Conn E494 3 FixedDim AvionicsDim All TransistorsAreMotorola2N6282 DimmerControlAssemblyCir...

Page 648: ...adinglightsarelocatedabovethe passenger windows 1 Removegroundwirefrom lightassembly Removecoverfromlamp 2 Removebulbfrom socket b Installation of OverheadReadingLights 1 Insertnewbulbintosocket 2 Rep...

Page 649: ...achmentplatefrommounting fixture 3 Disconnect electricalleadsfromlamp NOTE Indicatepositionof eachelectricalleadtofacilitatereinstallation 4 Toremovecompleteassembly from gearstrut disconnectelectrica...

Page 650: ...trobelampout of lightassembly Discard withwiresstill attached b InstallationWingTip StrobeLights 1 Positionstrobelight intoplaceon lightassembly Insertthreewiresconnectedto it throughthe holeprovidedi...

Page 651: ...tem using thefollowing instructions NOTE Whenisolatingfaultsinthe system useschematic33 45 01in PA 42 720 Advanced Trainer WiringDiagramManual 1 Ensure inputvoltage atpower supply is28volts CAUTION WH...

Page 652: ...rcraftgroundin powersupply f Characteristicsof an XenonFlashTube 1 A xenonflashtubecanbe photo sensitive andsomecouldbecomemoredifficultto fire whensubjectedto darkness 2 Xenonflash tubesbecomehardert...

Page 653: ...ngof WingInspectionLight Servicerequiredfor this unitconsistsof replacinga burnedout lampwitha newlamp P N 4593 c Removal of WingInspectionLight 1 Besureswitchisinthe OFFposition 2 Removenacellesideac...

Page 654: ...00 00 34 00 00 34 10 00 34 10 00 34 10 00 34 10 00 34 10 00 34 10 00 34 10 00 34 10 00 34 10 00 34 10 00 CHAPTER DATE SECTION PAGE 1 1 1 2 3 1 2 3 4 5 6 7 8 9 10 PAGE DATE Jan 10 90 Jan 10 90 Jan 10...

Page 655: ...s Removalof BezelMountedInstruments Installation of BezelMountedInstruments Removalof ClampMountedInstruments Installation of ClampMountedInstruments 1 2 2 2 3 3 3 3 3 34 10 00 FlightEnvironment Data...

Page 656: ...s propeller pitch engine startcontrols elevator trim aileron trim rudder trimwheels andthemaincircuit protection panelaremounted onapedestal located at bottom centerofinstrument panel Located on thele...

Page 657: ...oluminescent Panel RightInboard Electroluminescent Panel RightOutboard Electroluminescent Panel LeftInboard Electroluminescent Panel InstrumentPanel Figure2 2 Instruments Theinstruments ofthePA 42 720...

Page 658: ...wssecuringinstrument inpanel h Removeinstrument frompanel 2 Installation of BezelMountedInstruments a Placeinstrumentintopositionon backsideof panel Securewith screws b Removethe dustplugor capfromeac...

Page 659: ...n eachsideof the aircraft The leftsidetop and rightside bottomportsareusedfor the copilot sinstruments and the reverseforthe pilot s instruments CHART 1 FAULT ISOLATION PITOT STATIC SYSTEM Fault Cause...

Page 660: ...rrideposition Replace switch Defective q pressure switch stuckinopen position Nosegeardownlockswitch failedinopenoroutofrig Replace switch Repair orreplace Havingexceeded100 4 knots q switcharmedspeed...

Page 661: ...PIPER AIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A FlightEnvironmental Data continued 16 15 18 12 Pitot Static Installation Figure1 Sheet1of 3 EFFECTIVITY 34 10 00Jan10 90...

Page 662: ...ose Pitot1 51 FlexibleHose Pitot2 39 FlexibleHose Pitot 52 FlexibleHose Static2 40 FlexibleHose Static 53 FlexibleHoseto Test Ports 41 FlexibleHose Pitot2to ADS 54 PitotandStaticTest PortPlac 42 Flexi...

Page 663: ...o Pilot 57 StaticLineAssembly Pilot 58 Static Line Pilot 59 StaticLine Co Pilot 60 Tee Fitting Pilot 61 Tee Fitting Co Pilot 62 StaticLine Co Pilot 63 StaticLine Pilot 64 Static Vent Fitting Co Pilot...

Page 664: ...c Source Selector Valve Altimeter Airspeed Deice GyroSystemPressure Rateof Climb CabinAltitude Pressure Diffential Autopilot Air DataComputer StaticSourceSelector Diff PressSwitch Differential Pressur...

Page 665: ...ts Purgethe lines backthroughthe staticventports CAUTION MAKESUREALL LINES TESTERAND EQUIPMENT ARE PROPERLY AND SECURELY CONNECTED ANDOBSERVEDDURINGEVACUATION OF THE SYSTEM AN UNEXPECTED DISCONNECTION...

Page 666: ...ptime is excessive cagingfunctionsarenormal warningflagand indicatinglightsandtestcircuitsare operable e Whenanyair drivenattitudeor directionalgyrosareinstalled inspectandchangethe control airfilter...

Page 667: ...the relayswill deenergize Thenormal override switch locatedatthe upperrightof the landinggear handle actsas a control to overridethe systemas necessaryandlightsupwhen inoverride Thepressureswitch moun...

Page 668: ...q sensor operation inthis rangeasfollows a Deice systems mustdeactivate Current flowdecrease onammeter b Cabinmustdepressurize c ECUgroundventfanmustactivate d Thelanding gearhandle cannotberaised 4...

Page 669: ...IVITY 35 CONTENTS 35 00 00 35 00 00 35 00 00 35 10 00 35 10 00 35 10 00 35 10 00 35 10 00 35 10 00 35 10 00 CHAPTER DATE SECTION PAGE 1 1 1 2 3 1 2 3 4 5 6 7 PAGE DATE Feb1 98 Jan10 90 Jan 10 90 Jan 1...

Page 670: ...dDischarge Indicator Purging Testingfor Leaks OxygenCylinderand RegulatorRemoval OxygenCylinderand RegulatorInstallation ChargingValveRemoval ChargingValveInstallation PressureGaugeRemoval PressureGau...

Page 671: ...bemanuallyactuatedbythe flightcrewthrougha leverinthe pilot sidewindowmouldingto ensurepassenger maskdeploymentin the eventof a pressureswitch malfunction In linebetweenthe passengermaskdeploymentboxe...

Page 672: ...ed Trainer MAINTENANCE MANUAL A DescriptionandOperation continued 10 OxygenStorageCylinders 9 GreenOverpressure DischargeD 8 ExternalCylinderChargingValve OxygenSystemInstallation Figure1 EFFECTIVITY...

Page 673: ...ctive Defective regulator Replacepressuregauge Replaceregulator Pressureindicationnormal but no oxygenflowing Oxygencylinderregulator assemblydefective Replaceregulatorassembly On Offcontrolout of adj...

Page 674: ...8162 E 8391 composite 300 FlightHours EachUse SeeNote Replaceas necessary 3 Years Hydrostatictest Replace every 24 yearsor4 380fillingcycles Hydrostatictest 5 Years 3 Years Hydrostatictest Replace ev...

Page 675: ...heneverthe cylinderpressurefallsbelow50 psig or ifany linesare leftopen for anylengthof time or wheneverthereareanyoffensiveodorspresent a Parkthe airplaneina NOSMOKINGareaandexerciseextremecaution b...

Page 676: ...airanyleaks g Wipeoff anytraceof thedetectorsolutionfollowingthe test andreconnectthe lowpressure oxygenlineto theoxygencylinderregulator WARNING DONOTACTUATE ANYELECTRICAL SWITCHES NORALLOWANYSORTOF...

Page 677: ...ndsecure withthreebolts andnuts b Connectthe connectorto the valveusingthreadsealantandinstructionsgiveninparagraph titled OxygenSystemServicing c Securethe accesspanel 9 PressureGaugeRemoval a Closet...

Page 678: ...he outlet b Removethe screwsholdingthetrim paneland removethe panel c Theoutletcannowbe removedfromthe lowpressureline 14 OutletInstallation a ApplyPermacel 412ribbondopethreadsealantto the maleendof...

Page 679: ...clearance a2 inch clearance isacceptable provided thewirebundles aresupported inconduit orwithclosely spaced clamps orclips Where 2 inchclearance isnotpossible boththewiringandtheoxygen components mu...

Page 680: ...a weighedglassdish Evaporation maybe accomplished by heatingat 200 Fforapproximately 1 2 hour b Afterevaporation coolandweighthe residue Do notusethe solventif the residue exceeds100milligramsinweight...

Page 681: ...IVITY 36 CONTENTS 36 00 00 36 10 00 36 10 00 36 10 00 36 10 00 36 10 00 36 10 00 36 10 00 36 10 00 36 10 00 CHAPTER DATE SECTION PAGE 1 1 1 1 2 3 4 5 6 7 8 9 PAGE DATE Jan 10 90 Jan 10 90 Jan 10 90 Ja...

Page 682: ...SwitchesInstallation 4 PneumaticSystemCheckValvesRemoval 4 PneumaticSystemCheckValvesInstallation 4 PressureRegulatorand ReliefValveRemoval 4 PressureRegulatorand ReliefValveInstallation 4 EjectorRem...

Page 683: ...boots Pressureswitcheswhich arenormallyopenclosewhenthe bootsreacha pressureof 15 1 psig indicatingbootinflationto the pilot Whenthe timerde energizes the solenoidvalvesonthe deicer valves bootpressur...

Page 684: ...ssure to 18 1psig fordeicer bootoperation andsupplies asource of airthrough theejector creating avacuum forgyroinstrument operation A reliefvalveinthepressure regulator issetto relieve system pressure...

Page 685: ...e Intercooler Bleed AirOvertemperature Switch Pneumatic Suction Gauge GyroInletAirFilter Vacuum Regulator Valve Pneumatic System Check Valves Check Valve Pressure Regulator Relief Valve 10 Ejector 11...

Page 686: ...dAirShutoffValveRemoval a Remove topcowlofaffected engine to gainaccess toshutoff valveontheleftsideofengine b Remove safety wireandboltsto remove couplings securing valveassembly inbleedline c Discon...

Page 687: ...veswithO ringsfromfittingassembly 9 PneumaticSystemCheckValvesInstallation a Installnewvalvewithnewgasketto fittingassembly b Connectpneumaticair supplylinesto valves c Installfloorpanels carpet andse...

Page 688: ...connect electricalleadsfromvalvebeingremoved d Removescrewssecuringassemblyin position e Removedeicervalve 15 DeicerValvesInstallation a Installnew valvein position Securewithscrewspreviouslyremoved b...

Page 689: ...or b Disconnectall linesfromvacuumregulator c Removevacuumregulator 21 VacuumRegulatorInstallation a Installvacuumregulator b Connectall linesto vacuumregulator c Replacecopilot sinstrument panelandot...

Page 690: ...emovefuselagefloorboardsat F S 146 00 i Disconnect twopneumaticsupplylinesto checkvalves Figure501 Item11 andcapthe supplylines Figure501 Item12 WARNING BEFOREAPPLYING HIGHPRESSURE TO THEBLEEDAIR SYST...

Page 691: ...View Showing N2 Connection 9 BleedAir Lines 8 Intercooler PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Distribution continued Showing Disconneted Bleed Lines View ShowingDisconnected...

Page 692: ...IRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A Distribution continued Pressure LEFTSIDE FORWARD FUSELAGE ProofPressureandLeakageTestSetup Figure501 Sheet2 of 2 EFFECTIVITY 040 999 36 10 00JPAG...

Page 693: ...MANUAL CHAPTER 37 LIST OF EFFECTIVE PAGES CHAPTER SECTION 37 EFFECTIVITY 37 CONTENTS 37 00 00 37 10 00 37 10 00 37 10 00 CHAPTER DATE SECTION PAGE 1 1 1 1 2 3 PAGE DATE Jan10 90 Jan10 90 Jan10 90 Jan...

Page 694: ...MAINTENANCE MANUAL CHAPTER 37 VACUUM TABLE OF CONTENTS SUBJECT CHAPTER PAGE 37 00 00 Description andOperation FaultIsolation Distribution VacuumSystemTest VacuumRegulator Adjustment EFFECTIVITY 040 9...

Page 695: ...sure Onthe vacuumsideof the regulator a checkvalveisbuilt intothe line preventingreverseflowto gyro instruments Thevacuum system operates thepilotsturnandbankindicator A suction gauge located onthelow...

Page 696: ...edAir Checkand Shutoff Valve Pressure Gauge VacuumRegulator 4 2to 5 2in Hg Intercooler BleedAir Overtemp erature Switch N O Pressure Switch N O 15 1PSI DirectionalGyro GyroHorizon Engine InletFilter B...

Page 697: ...dvalveleakageduringthe systemleak test disconnect the hosesat the inletandoutletof eachgyro the suctiongaugeand the turn andbankadjustmentvalve Connectthe two hosesfrom eachinstrumentand the valveusin...

Page 698: ...regulatorsare locatedabovethe copilot srudderpedals c Observingpropersafetyprecautions advancepoweron bothenginesto a minimum90 and ensurevacuumgaugereads5 4 in Hgminimum Adjustvacuumregulatoraccordin...

Page 699: ...00 5 Jan 10 90 51 10 00 10 Apr 15 91 51 70 00 6 Jan 10 90 51 10 00 11 Jan 10 90 51 70 00 7 Jan 10 90 51 10 00 12 Jan 10 90 51 70 00 8 Jan 10 90 51 10 00 13 Jan 10 90 51 70 00 9 Jan 10 90 51 10 00 14 J...

Page 700: ...ection 10 Inspection Item Part Description Reference andAction 11 51 20 00 Processes 1 SealingProcedures 1 Sealing of Nacelle FuelTank 1 Surface Preparation 1 Material Preparation 1 Listof Materials 1...

Page 701: ...aling Avionics andECUBayDoorSealsRemoval Avionics andECUBayDoorSealsInstallation Avionics andECUBayDoorCamloc Fasteners Sealing 51 40 00 Fasteners Rivet Replacement OversizeRivetReplacement RivetSubst...

Page 702: ...g astheoriginal skin and flexibility must beretained sosurrounding areaswillnotreceive extrastress Whenmakingmajorstructuralrepairsotherthanreplacingfactorymanufactured parts the manufacturer mustbe c...

Page 703: ...025 032 032 040 040 9 2024 T3 050 10 2024 T3 064 11 321STSTL 015 12 2024 T3 080 13 2024 T3 050 14 2024 T3 090 15 2024 0 063 16 2024 T3 016 17 2024 18 Polyurethane 19 2024 20 2024 21 2024 22 Kevlar 23...

Page 704: ...IRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL B StructuralRepairs continued Left Shown Right Opposite Material SkinThickness Figure 1 Sheet 2of3 EFFECTIVITY 040 999 51 00 00 PAGE 3 51 00 00Jan...

Page 705: ...S 020 025 025 032 032 040 040 050 064 015 080 NUMBER 13 14 15 16 17 18 19 20 21 22 23 24 MATERIAL 2024 T3 2024 T3 2024 0 2024 T3 2024 Polyurethane 2024 2024 2024 Kevlar 2024 2024 THICKNESS 050 090 063...

Page 706: ...ctural Repairs continued 17318 Access HoleCoverPlate 17317 Access Hole Reinforcement Plate I o o o I 0 0 o o 615 16 o o o o 5 16 7 17315 Access Hole Reinforcement Plate 17316 Access HoleCoverPlate o A...

Page 707: ...ion area isbetweenthe rowof universalheadrivetsandthe edgefarthestfromthem Withan O meterreadingbetweenrivets andawayfromcracks a crackinthe skinwill registera 20 30 deflection whileone inthe doublerw...

Page 708: ...IPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL 1 Passenger Window SkinInspection continued Inspect 3 inches Passenger Window SkinInspection Figure 601 EFFECTIVITY 040 999 PAGE 251 10 00 Jan...

Page 709: ...MAINTENANCE MANUAL 2 WingandAssociatedStructure Firewallto EngineMountExtension Bolts NOTE Replacefirewallto enginemountextensionbolts NAS626 8 at 7 500flight hours WingInspectionand RepairAreas Figur...

Page 710: ...9 0 Replace working rivets MS20470 AD5 13 EA with NAS1738B5 4as required SeeNote2 C Inspectrivetsat F S 359 32 W L 41 15TO W L 52 50 Replace working rivets MS20470 AD5 14 EA with NAS1738B5 4 as requir...

Page 711: ...onal rivets beyond theendofthecrackatbothends NOTE Bothlegsoftheanglemusthavethesamenumber of rivets Therivets used mustbeofthesametypeandsizeastheexisting rivets d Cracksinflanges having fourrivets o...

Page 712: ...ified inChart801 2 Addanangleofthesamematerial andthickness astheflange Thelegsoftheangle mustbeofequallength Thenumber andsizeoftherivets tobeusedarefoundinChart 802 NOTE Bothlegsoftheanglemusthaveth...

Page 713: ...thecrackcanbefairedoutgradually witha minimum radius of inch b Ifthecracklength exceeds fiftypercent ofthedistance between theedgeandthebendradius tangent line butdoesnotextend intothebendradius proce...

Page 714: ...faceof outercowlskin 11places Matewith doubler Installdoubleron inside surfaceof outercowlskin PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL 7 Repairof CrackedorTom outDimpledHolesAround...

Page 715: ...flush on installation Crackedortorn outdimpled holesaround generator eductor uppercowl and freshair inlet lowercowl PIPER AIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL 7 Repair of Cracked or...

Page 716: ...00 Figure 605shows typicalinspection areaslistedin51 10 00 Chart601 andwhere applicable applies tobothleftandrightsides 51 70 00 Figure 801showsapproved repair method All itemsin 51 10 00 Chart601 mu...

Page 717: ...56796 28 Bulkhead 15 X 15 56068 3 Bulkhead 19 X 16 INTENTIONALLY LEFT BLANK 17 56068 3 Bulkhead 19 X 18 56688 14 10 Bulkhead 15 X 19 56796 24 Bulkhead 15 X 20 INTENTIONALLY LEFT BLANK 21 54111 20 Bulk...

Page 718: ...20 X 55 46582 2 Bulkhead 20 X 56 56287 19 22 Bulkhead 15 X 57 56629 2 Strap 5 R 5 58 56695 3 Skin 9 R 9 59 INTENTIONALLY LEFTBLANK 60 INTENTIONALLY LEFTBLANK 61 INTENTIONALLY LEFTBLANK 62 45083 0 Supp...

Page 719: ...14 R 16 91 45160 0 Channel 15 R 17 92 56296 3 Bulkhead 16 R 18 93 46678 3 Frame 18 R 94 56695 2 Skin 18 R 21 95 INTENTIONALLY LEFT BLANK 96 INTENTIONALLY LEFT BLANK 97 56507 6 Bulkhead 18 X 98 INTENT...

Page 720: ...MANUAL 9 Inspection Item Part Description Reference andAction continued a Fuselage Upper CabinSection LEGEND A BULKHEAD STRINGER CUTOUT BULKHEAD END CHANNEL Typical Inspection Areas Figure 605 Sheet1...

Page 721: ...NUAL 9 Inspection Item Part Description Reference andAction continued b Fuselage LowerForward Frame LEGEND A BULKHEADSTRINGERCUTOUT O BULKHEADEND CHANNEL TypicalInspectionAreas Figure605 Sheet2 of 7 E...

Page 722: ...720 AdvancedTrainer MAINTENANCE MANUAL 9 Inspection Item Part Description Reference andAction continued c Fuselage LowerCenter Frame F S 135 00 to 174 00 3 LEGEND A BULKHEADSTRINGERCUTOUT O BULKHEADE...

Page 723: ...UAL 9 Inspection Item Part Description Reference andAction continued d Fuselage LowerRearFrame F S 174 00 to 215 00 LEGEND A BULKHEADSTRINGER CUTOUT O BULKHEADEND CHANNEL Typical Inspection Areas Figu...

Page 724: ...Item101 PIPERAIRCRAFT PA 42 720 AdvancedTralner MAINTENANCE MANUAL 9 Inspection Item Part Description Reference andAction continued e Fuselage AftSection F S 215 00 to 280 00 LEGEND...

Page 725: ...ectionItem Part Description Reference andAction continued f FuselageAftSection F S 280 00to 334 00 4 Item A1B Item85 LEGEND A BULKHEADSTRINGERCUTOUT O BULKHEADEND CHANNEL TypicalInspection Areas Figur...

Page 726: ...ctionItem Part Description ReferenceandAction continued g Fuselage Floorboard Installation andCabinDoorEntrance Cabin DoorEntrance Item55 LEGEND BULKHEADSTRINGERCUTOUT O BULKHEADEND CHANNEL Typical In...

Page 727: ...nealuminum surfaceswherethe originalalodinecoatinghasbeen removed Applyalodine1200solution undiluted to affectedareawitha smallnylon brush Allowsolutiontodry untila lightgoldencolorappears Whena coati...

Page 728: ...peratures and will sealevenwhencombinedwithfuel withoutaffectingsealingefficiency c After allsealanthasdried proceedasfollows 1 Plugall tankopeningswithtemporarycapsand gaskets 2 Installa modifiedfill...

Page 729: ...lass A sealant yst indow ng Do C Sealareabeforeinstallinginnerskin D All skin laps in pressure area must havefayingseals E Use brushcoat as well as faying seal methodon areaswhere skinsslideinto final...

Page 730: ...tallinginner skin D Allskinlapsinpressure areamust havefayingseals E Usebrushcoat as well asfaying sealmethod onareaswhere skins slideintofinalposition F Brushcoat bulkhead TV skin flanges particularl...

Page 731: ...aminants onsurface the cleanedsurfacesshouldbewipeddry immediately and not allowedto air dry d It is essential that onlycleanclothsbeusedforcleaning Whena clothbecomes soiled it mustbecleanedor discar...

Page 732: ...able Materials 91 00 00 4 Listof Materials Figures 201and202 Onlythe followingmaterialsareto be used a Sealants MIL S 7502 or MIL S 8802 ClassesA 1 2 A 2 B 2 B 4 B 6 andB 8 b Sealantmaterial 3M E C 12...

Page 733: ...reworklifeof sealanthasexpired A sandblasted buckingbarmustbe usedto performthe rivetingoperation Allowclass B 2sealantto fullycurefor 48 hoursat 75 Fand 50 relativehumidity 7 SealingJoggles Figure204...

Page 734: ...FayingSealBetweenSkinsat Skin Lap Skin Skin PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Processes continued an 10 90...

Page 735: ...argehole greater than 125 15 Nut 16 Washer D PressSealantintoPlace withFairingTool PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Processes continued 14 Pressure Side SEALING HOLES SEAL...

Page 736: ...REPRESSURE GUNCONTAINS ENOUGH SEALANTTO COMPLETE A SEALAT ONEINJECTION WITHOUTANYBREAK STOPPINGANDSTARTING CAUSESAIR BUBBLESIN SEALSANDWILL PRODUCE A POORSEAL 11 SealingFasteners Figure 207 Sealallfas...

Page 737: ...pe Referto view D of Figure208 j Crimpwidemaskingtapearoundsealassemblyto centerwire harness k Wrapcrimpedend withthreeturnsof 0 750inchmaskingtape Referto viewD of Figure208 I Puncturemaskingtapeover...

Page 738: ...AINTENANCE MANUAL A Processes continued 1 Sealing Procedures continued FilletExcessSealant After Installation of FittingHalves ViewB Masking Tape 1 1 2 Width String MaskingTape 3 4 Width WireHarness S...

Page 739: ...continued NOTE Recoverable End ApplyHeatin ThisArea O Ring Coating Side View End View Type Nut Type B Nut PressureBulkhead PressureBulkhead Type A NutInstallation HeatReflector 3 3 PressureBulkhead Ty...

Page 740: ...aledwithinthis time mustbeprepared again CAUTION DONOTUSEPOLYVINYL ALCOHOL ASA RELEASEAGENTNEAR ACRYLIC PLEXIGLAS WINDOWS ITWILLCRAZEACRYLICPLASTICS 16 SealingFormed in Place Gaskets NOTE Thistypeof s...

Page 741: ...gsurface a Aft 56598 06 b Top 56598 07 c Forward 56598 08 d Bottom 56598 09 3 Coatseal matingsurfacesandthe bayframefacewith3M 1300Lcontactcement Allow to dry 15minutes 4 Installsealsintheirappropriat...

Page 742: ...heither2017 T4or 2024 T4rivets providingthe spacingsandedgedistancesof Chart801are maintained CHART 801 EDGE DISTANCE AND SPACING vs RIVET DIAMETER RIVET EDGE DISTANCE SPACING DIAMETER 2D 2D1 16 3D 4D...

Page 743: ...holestandards conform to Chart803 useCR3243 forprotruding head andCR3242 forflushhead CHART803 SPECIFICATION FORREPLACEMENT OVERSIZERIVETS PROTRUDING HEADRIVETS SPECIFIEDRIVET OVERSIZED REPLACEMENT R...

Page 744: ...ponents 2 HollowRivets Hollowrivetscanbe substituted for solidrivetsin nut plateattachment only iftheirsole purposeis the attachment of nutplates Hollowrivetsmaynotbe substitutedfor solidrivetsifthe n...

Page 745: ...8 Two 5 32 Rivets See Note 8 Two 5 32 Rivets Two 5 32 Rivets See Note 10 See Notes 7and 10 5 32 NAS1738B Bulbed Cherrylock CR2249 NAS1739B Bulbed Cherrylock CR 2248 1 Thematerial thickness refers tot...

Page 746: ...METALTHICKNESS 032 040 050 APPROVEDSUBSTITUTIONS FORMS20470AD 5 32INCHPROTRUDING HEADTYPERIVET ONA DIRECT ONEFORONE BASIS RIVET SHEETMETALTHICKNESS 032 040 050 020 025 063 071 NAS1398B CR3213 NAS1738B...

Page 747: ...032 040 050 063 MACHINE 53 071 APPROVED SUBSTITUTIONS FOR MS20426AD 5 32 INCH FLUSH COUNTERSINK HEADTYPERIVETONA DIRECT ONE FORONE BASIS SHEETMETALTHICKNESS RIVET 020 025 032 040 050 063 MACHINE 071 N...

Page 748: ...40 050 063 071 CR3212 NAS1739B APPROVEDSUBSTITUTIONSFOR MS20426AD5 32 INCH FLUSH DIMPLED RIVETONA DIRECT ONE FORONE BASIS SHEETMETALTHICKNESS RIVET HEADTYPE 020 025 032 040 050 063 071 NAS1739B APPROV...

Page 749: ...E HEAD 100 Upto 062 CCR27455 3 1 CCR26455 3 1 CCR26455 3 2 063to 125 CCR27455 3 2 DR1204 0306 CCR26455 3 3 126to 187 CCR27455 3 3 DR1204 0308 188to 250 CCR27455 3 4 CCR26455 3 4 DR1204 0310 251to 312...

Page 750: ...pairs Pressurized Section Wheneverpossible an insetis providedinthe upperpartof the pagewiththe shadedportion indicatinga typicalareawhererepaircouldbe required Thematerialto be usedinthe repairis spe...

Page 751: ...dvancedTrainer MAINTENANCE MANUAL B FuselageRepairs PressurizedSection continued J Stringer Splice Typical R 1and R 2 ViewA A 12 PerSide Rivets MS20470 AD4 EquallySpacedwith 375EdgeMargin EFFECTIVITY...

Page 752: ...kheadRepair continued R 3 9 EachMS20470AD4 Evenly Spaced 9 EachMS20470AD4 Evenly Spaced 17EachMS20470AD4 Evenly Spaced 17EachMS20470AD4 to Match Bulkhead A Repairfor Left andRightSidesSimilar Repairma...

Page 753: ...ENANCE MANUAL B Fuselage Repairs Pressurized Section continued Bulkhead Repair R 4 On View A A TrimBackToClearCups Repairfor Left and RightSidesSimilar Material 0402024 T3Aluminum StructuralRepairs Fi...

Page 754: ...ontinued Repairof Inner Skin Typical R 5 F S 113 0 I 24EachMS20470 AD4 Rivets Pickup Existing Pattern Viewof Inner SkinInstallation withRepair Accomplished 0 8 EachMS20470 AD4 RivetsEquallySpaced 4 25...

Page 755: ...ed BulkheadRepair continued R 6 9 EachMS20470 AD4 Rivets 10EachMS20470 AD4 Rivets Existing ExistingHole F S 25 6 View A A Repair forLeftandRightSidesSimilar Repair maybemade fromP N56286 2 bulkhead wi...

Page 756: ...ed Section continued BulkheadRepair continued R 7 Bulkhead F S 297 38 Bulkhead F S 280 0 PickupExistingPattern 4 Each 26 EachMS20470 AD4 Rivets A View A A Repair maybemadefromP N56261 4 bulkhead withf...

Page 757: ...Pressurized Section continued Typical Fuselage Center Bulkhead Repair R 8 Angle Center Bulkhead Longitudinal Beam Assembly Repairfor Left and RightSidesSimilar Material 0502024 T3 Aluminum Structural...

Page 758: ...uselage Repairs Pressurized Section continued Fuselage Skin Repair Typical R 9 and R 10 Note StopDrillCracksBeforeAddingDoubler 6 EachMS20470 AD5 Rivets 7 EachMS20470 AD5Rivets Material 080 2024 T3 Cl...

Page 759: ...elage Repairs Pressurized Section continued BulkheadShelfRepair R 11 A I A I PickupExisting Patterns MS20470 AD4 Rivets 12Each O I 63 O Repair for LeftandRightSidesSimilar Material 0502024 T3 Aluminum...

Page 760: ...d Fuselage Channel Repair R 12 Typical Channel Location Pressure Bulkhead F S 57 0 UtilizeExistingRivetPattern Use5 8 Spacing forAdditional Fasteners Channel 1 5 Repair forLeftandRightSides Similar Ma...

Page 761: ...irs Pressurized Section continued Fuselage SkinRepair Typical R 13andR 14 Typical SkinRepair Application 31inMinimum EdgeDistance Typical 9 0 Material 0802024 T3CladAluminum BevelSides45 X 070 Structu...

Page 762: ...UAL B Fuselage Repairs Pressurized Section continued BulkheadRepair continued R 15 Bulkhead Bulkhead F S 140 0 MS20470 AD4 Rivets ViewA A Material 0322024 T3 Aluminum StructuralRepairs Figure801 Sheet...

Page 763: ...d Section continued LongitudinalBeamRepair R 16 Typical Location Pressure Bulkhead F S 57 0 MidSpace asShown MatchCenterPattern Beam Assembly Repairfor Leftand RightSidesSimilar Material 0402024 T3Alu...

Page 764: ...ection continued TypicalPressureBulkheadChannelRepair R 17 Typical Pressure Bulkhead ChannelLocation PressureBulkhead F S 57 00 Channel Repairfor Left and RightSidesSimilar Material 0402024 T3Aluminum...

Page 765: ...surizedSection continued FuselageStation 332 0Bulkhead Repair R 18 12 EachMS20470 AD4 Rivets TypicalBulkhead LocationF S 332 0 PickupExisting Pattern Existing Pattern 75 ViewA A Repairfor Left and Rig...

Page 766: ...FuselageRepairs Pressurized Section continued Bulkhead Repair continued R 19and R 20 Bulkhead F S 215 0 ExistingRivetPattern View A A 5 EachMS20470 AD4 Rivets Material 0402024 T3Aluminum StructuralRe...

Page 767: ...ction continued Fuselage SkinRepair Typical R 21 Intercostal Channel Bulkhead Note StopDrillCracks Before AddingDoubler 38R MS20470 AD4 Rivets W L 10 0 38 38 1 0 2 0 Material 0402024 T3Aluminum Struct...

Page 768: ...10 00 52 10 00 52 30 00 52 30 00 52 30 00 52 30 00 52 30 00 52 30 00 52 40 00 52 70 00 52 70 00 CHAPTER DATE SECTION PAGE 1 1 2 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 1 1 2 PAGE DATE Jan 10 90 Jan 10 90 Jan 1...

Page 769: ...FillingSnubberAssembly 7 DoorSnubberInstallation 7 DoorSealSystem 7 DoorSealAssemblies 7 DoorSealsRemoval 7 DoorSealsInstallation 9 52 30 00 CargoDoor 1 Cargo DoorRemoval 1 Cargo DoorInstallation 1 C...

Page 770: ...NTS continued SUBJECT CHAPTER PAGE 52 40 00 Service NoseConeRemoval NoseConeInstallation DoorWarning DoorAjarSwitchesDescription DoorAjarSwitchesRemoval DoorAjarSwitchesInstallation DoorAjarSwitchesAd...

Page 771: ...erto Paragraph CabinDoorSnubber d Disconnect two supportcablesfromdoor e Disconnect pressurelineto doorseal f Removehingepin andlift doorto separatehinges Removedoorfrom airplane 2 CabinEntrance DoorI...

Page 772: ...PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL 1 SupportCable 2 ScuffCover 6 WeatherSeal 9 InnerSkin Bulkhead 12 OuterSkin 6 WeatherSeal ViewA A CabinEntranceDoor Figure401 EFFECTIVITY 040...

Page 773: ...rews andlocknuts to remove spindle fromdoor 5 Reach intoopening madebyremoving coverplate Remove boltandlocknut securing outer handle andshafttobellcrank D CabinEntrance DoorLatchMechanism Thelatching...

Page 774: ...rank Upper 6 VerticalPushRod 7 Bellcrank Center 8 InsideLatchHandle 9 VerticalPushRod 10 Bellcrank Lower 11 CoverPlate 12 Knob AuxiliaryLock 13 CoverPlate 14 Rod 15 Washer 16 CotterPin 17 O Ring 18 Lo...

Page 775: ...sintodoor 2 Installoutside handle if previously removed 3 Installbellcrank Secure withboltandlocknut 4 Connect pushrodstobellcrank beingsureto install spacers between vertical and horizontal pushrods...

Page 776: ...oor loosenand removetwo machine screwsandnutssecuringassemblyto door 2 CabinDoorAuxiliaryLockInstallation Figure402 a Installspringintoplunger Installplungerand springintobushing NOTE EnsureO ringis i...

Page 777: ...on door Securewithboltandnut c Securebootoversnubberconnectionon entrancedoor G DoorSealSystem Figure404 The doorsealsystemreceivesitspressurefrom the enginebleedair Thebleedair leavesthe bleed porton...

Page 778: ...720 AdvancedTrainer MAINTENANCE MANUAL G DoorSealSystem continued 2 DoorInflationValve 7 LineAssembly CargoDoor 6 Washer DoorSeal 5 CargoDoorSeal CabinEntranceDoorSeal 3 LineAssembly CabinDoor DoorSea...

Page 779: ...bywipingcemented surfaces lightly withToluol Wipeapproximately 2feetat atime immediately position andpress sealinplace Startat theairinletontheinflatable seal CAUTION DONOTSTRETCH THEINFLATABLE SEAL M...

Page 780: ...idin reassembly 3 Removehardwaresecuringpushrodsto bellcranks 4 Removebellcrankassembliesfromdooralongwithteflonwashersusedon leftbellcrank only 5 Removehardwaresecuringpushrodsto upperdoorlatchassemb...

Page 781: ...oorLatches CARGODOORINSTALLATION 5 AccessPanel Door 6 Bearing Support CargoDoor MainEntranceDoor MainEntranceDoor 7 LatchPin Aft 8 ControlBellcranks forAft LatchingMechanism 9 NylonBearingWasher 10 Be...

Page 782: ...removescrewsfromaccesspanelin rearbulkheadof nacelle locker removeaccesspanel 2 Removesixmachinescrewsandlocknutssecuringlatchassemblyto nacelle Withdraw latchassemblythroughaccesspanel 3 Removetwo s...

Page 783: ...removecotterpinsandwashersfrom hingepins b Removescrewsecuringbaggagedoor holdinglinkclampto doorframe c Whilesupportingdoor removehingepins andlift doorfor removal 2 Forward Baggage DoorInstallation...

Page 784: ...earmassemblies fromthe clevisend of the tubeby removingcotterpins washers and pins 2 Removalprocedureforforwardbaggagedoor handleassemblyis asfollows a Disconnect rollpinlocatedbetweentubeassemblyand...

Page 785: ...semblies isasfollows a Secure armassemblies to clevis endsontubeassembly withpins washers and cotterpins Ensure proper armassembly isoneachendoftube b Place complete tubeandarmassembly ontorearof door...

Page 786: ...coneforwardandto the rightof fuselage d Disconnect anyelectroniccablesgoingintonosecone e Removehingepin NOTE Supportnoseconebeforeremovinghingepin 2 NoseConeInstallation Figure401 a Placenosecone inp...

Page 787: ...jar lightwill stayon The lowerforwardswitchis atwo poleswitch Thepurposeof these switchesisto provideindependent groundto the warninglightassemblyif anyof the lockingpins do notengageproperly 2 DoorAj...

Page 788: ...djustingswitches ensurealllockingpinsare adjusted b Removeinteriortrim panelfrom arounddoorframe c Withdoorclosedand locked screwswitchintoreceptacleuntilswitchactuates NOTE Anohmmeterorcontinuitytest...

Page 789: ...F EFFECTIVE PAGES CHAPTER SECTION 53 EFFECTIVITY 53 CONTENTS 53 00 00 53 10 00 53 10 00 53 10 00 53 10 00 53 10 00 CHAPTER DATE SECTION PAGE 1 1 1 1 2 3 4 5 PAGE DATE Jan 10 90 Jan 10 90 Jan 10 90 Jan...

Page 790: ...ardBaggageCompartment CHAPTER 53 00 00 PAGE 1 53 10 00 1 1 1 AuxiliaryStructure FloorboardInstallation FloorboardRemoval FloorboardInstallation AttachFittings Seat Rails AerodynamicFairings NoseCone T...

Page 791: ...thetail conesection The nosesection forwardof station57 00 housesthe forwardbaggagecompartment the avionics compartment andnosewheelattachmentpoints The cabinsection from station57 00to station332 00...

Page 792: ...beris installedto preventthe doorfromdroppingtoo fastwhenopened A cargodoor locatedinthe leftsideof the fuselageaft ofthe maincabinentrancedoor swingsup onlyafterthe cabinentrancedoor has beenopened T...

Page 793: ...iberglass 2024 T3 2024 T3 2024 0 2024 2024 Kevlar 2024 THICKNESS 020 040 040 040 050 025 NOTE Left Wing Shown Right Wing Opposite and Noted Material Outlinesin Dots Usedon Right Wing Only HeatTreatto...

Page 794: ...AntennaandCable Exec 9 RudderTrim 10 AvionicsBay NoseGearSteeringconnections 11 HydraulicFill BrakeReservoir 12 NoseBaggage Compartment OxygenBottle ECUGroundCoolingfan ElectricalControlPanel 13 APURe...

Page 795: ...gremovalto facilitatereinstallation 332 00 Control Systems AccessPanel SeatTracks Sta 57 00 FloorboardInstallation Figure3 a FloorboardRemoval 1 Removecarpeting seats and otherfixturesas necessary 2 R...

Page 796: ...MACHINING GUIDE INTHEVENDORPUBLICATION LIST a TailConeRemoval 1 Removefourscrewssecuringclosureplateto tail cone Removeclosureplate 2 Removescrewssecuringtailconeassemblyto fuselage Removetail cone b...

Page 797: ...AdvancedTrainer MAINTENANCE MANUAL CHAPTER 54 LIST OF EFFECTIVE PAGES CHAPTER SECTION 54 EFFECTIVITY 54 CONTENTS 54 00 00 PAGE 1 1 1 CHAPTER DATE SECTION PAGE DATE Jan 10 90 Jan 10 90 Jan 10 90 LISTOF...

Page 798: ...PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL CHAPTER 54 NACELLES PYLONS TABLE OF CONTENTS CHAPTER 54 00 00 SUBJECT PAGE General 1 EFFECTIVITY 040 999 CONTENTSJan 10 90...

Page 799: ...the cowlflapdoorand intercooler air inlet Referto 71 00 00forcompletedetail Thenacellefuelcellis locatedina compartment directlyaft of the enginefirewall Thisbladdertype fuelcellhasa capacityof 75 U...

Page 800: ...5 20 00 55 20 00 55 20 00 55 20 00 55 20 00 55 30 00 55 40 00 55 40 00 55 40 00 55 40 00 55 40 00 PAGE 1 1 1 1 2 3 1 2 3 4 5 6 7 1 1 2 3 4 5 CHAPTER DATE SECTION PAGE DATE Jan 10 90 Jan 10 90 Jan 10 9...

Page 801: ...stallation 1 55 20 00 Elevator 1 ElevatorRemoval 1 ElevatorInstallation 1 HingeTubeAssemblyDismantling 3 HingeTubeAssemblyReassembly 4 ElevatorTrimTabRemoval 4 ElevatorTrimTabInstallation 4 ElevatorBa...

Page 802: ...stfixture jig shownin55 20 00 Figure3 and55 40 00Figure2 Balancingmustbe accomplished in a draftfree areaand in a mannerwhichallowsunrestricted movement of controlsurface c BalancingDefinitions Thefol...

Page 803: ...l Stabilizer Installation Figure 1 a Position stabilizer attopof vertical finwithfrontsparbehind finfrontsparandrearsparbehind fin srearspar b Lineupfixtureholes andinstallretaining bolts Withholesali...

Page 804: ...PIPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A HorizontalStabilizer continued Empennage Installation Figure 1 Sheet1of 2 EFFECTIVITY 040 999 55 10 00 Jan 10 90...

Page 805: ...MANUA A Horizontal Stabilizer continued View A Fin Frontand RearSparFitting View B InboardElevatorHingePoint View C CenterElevatorHingePoint View D OutboardElevatorHingePoint Empennage Installation Fi...

Page 806: ...rn 2 Toremovehingetubeassembly removetwoscrewson innerflangeandtwo boltson eachhingeattop and bottomof horizontalstabilizerrearspar removeassembly 2 ElevatorInstallation Figure1 a Mounthingetubeassemb...

Page 807: ...MANUAL A Elevator continued View A Fin Frontand RearSparFitting View B InboardElevatorHingePoint View C CenterElevatorHingePoint View D OutboardElevatorHingePoint Empennage Installation Figure 1 Shee...

Page 808: ...wo boltsattachingelevatordownstopto hinges c Removethroughboltsconnectingtwo collarsto hingetube Slidecollarsofftube d Betweentwo hinges removetwothroughboltsfasteninghornassemblyto hingetube e Carefu...

Page 809: ...22A through boltsandtorque to30 40 inch pounds onlocknuts g Slidesecond collarovertubewithflangeawayfromhingesandatendoftube h Withcollar positioned properly alignboltholes Install AN174 22A through b...

Page 810: ...tsor washersfrom beam balancingbolt Whenbalancingtool moveable weightmustbe at bar shingecenterline g Afterbalancingtool reattachto elevator Keepbeamposition90 fromelevatorhingeline h Determinebalance...

Page 811: ...ions in Inches Horizontally Adjustable for Setting Toolto BeamBalancing Bolt Usedfor Balancingthe Tool ItselfOnce the Trailing EdgeSupport HasBeenSet HingeCenterline PlacedDirectlyOver HingeLineof Con...

Page 812: ...iredto raiseelevatorthroughneutralpositionuntiltrailingedgeis approximately 2 inchesaboveneutral d Recordrestraining force loweringelevatorfrom2 inchup position throughneutralposition to original2 inc...

Page 813: ...IPERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL A Vertical Stabilizer NOTE Thevertical stabilizer cannot beremoved withoutmajor structural repair EFFECTIVITY 040 999 PAge 1 55 30 00 Jan 10 9...

Page 814: ...Moveaccessplatehalfwayup rudderon leftsideof its leadingedge for accessto trim cable sectorassembly f Removelowertaperedpin Pulllowertrim shaftfrombottomof ruddersectorassembly g Removesafetywire fro...

Page 815: ...ner MAINTENANCEMANUAL A Rudder continued ViewA UpperRudderHingePoint ViewB CenterRudderHingePoint ViewC RudderSector View D RudderTrimTabHingePoints Empennage Installation Figure1 Sheet2of2 EFFECTIVIT...

Page 816: ...rquetubeand holdin place Aftersecuring the armon bottomof tubeshouldextendtowardsleftsideof aircraft b Installtaperedpin c Reconnect trim screwshaftto torquetubearm f Operatecontrolsto ensurecontrolso...

Page 817: ...tatefreelywithno bindingat knifeedges c Verifythat unbalanceis betweenlimits 29 1 in lbs trailingedgeheavy d If surfaceis leadingedgeheavy removematerialfromsurfacebalanceweightuntila balanced conditi...

Page 818: ...derpassesthroughneutralposition Determineactualfrictionin systemasfollows a Retractnosegear b Attachspringscaleto lowertrailingedgeof rudder forwardof tab Shownin Figure3 c Withspringscaleattached pos...

Page 819: ...6 00 00 56 00 00 56 00 00 56 00 00 56 00 00 56 00 00 56 10 00 56 10 00 56 10 00 56 20 00 56 20 00 56 20 00 CHAPTER DATE SECTION PAGE 1 1 1 2 3 4 5 6 1 2 3 1 2 3 PAGE DATE Feb 1 98 Feb 1 98 Feb 1 98 Fe...

Page 820: ...ir Rework Procedure Side AcrylicWindowsOnly CleaningWindshieldandWindows FlightCompartment Removalof Standard Windshield Installationof StandardWindshield StormWindow Removalof StormWindowAssembly Ins...

Page 821: ...contact with rough abrasives or sharp objects Visible scratch undetectable when passing a fingernail over the scratch Considered non critical other than being an appearance defect A scratch measuring...

Page 822: ...n of the aircraft 5 Scratches a A scratch no longer than 0 062 inch 1 575 mm long and no deeper that 0 015 inch 0 381 mm is acceptable b Heavy scratches on either glass ply are cause for immediate win...

Page 823: ...equires replacement 4 Haze or foggy appearance on the glass is not acceptable if the amount of haze fog causes an obstruction of vision in thearea used for operation of the aircraft 5 Blemishes a Blem...

Page 824: ...rtion of a window not used for flight vision 1 Mark Off in moderate amounts is acceptable provided that visibility is not impaired 2 Distortion a Distortion alongthesidesofthewindowwithin0 5inches 1 2...

Page 825: ...laced e Replace window pane if a single crack or combination of adjacent facing cracks exceed 0 300 inch 7 62mm in length 5 Chips Scratches and Crazing Limitations a Scratches in acrylic windows may b...

Page 826: ...area with water 5 Using 600A wet or dry abrasive paper repeat step 3 Continue sanding only until the hairline scratches caused by the coarse sanding are no longer apparent Sand a larger area than tha...

Page 827: ...shield CAUTION DONOTPRESSURIZE CABINFORATLEAST48 HOURSTO ALLOWSEALANT TO CUREAROUNDWINDSHIELD a Preparesurfaceaccordingto instructions in51 20 00 NOTE Maskwindshieldopticalsurfacesand fuselageskinarou...

Page 828: ...7 MS24694 552 31REQ LEFT 31REQ RIGHT 8 MS24694 561 4 REQ LEFT 4 REQ RIGHT 9 MS24694 561 18REQ LEFT 18REQ RIGHT 10 MS24694 559 28REQ LEFT 28REQ RIGHT 11 MS24694 554 1REQ LEFT 1REQ RIGHT PIPER AIRCRAFT...

Page 829: ...5 aroundtrim ring showninFigure402 3 ApplyPRC1425sealantto outerrimof innerringon stormwindowassembly Place windowintopositioninopening 4 Alignholesin innerringon stormwindowwithholesintrim ring Insta...

Page 830: ...ngadhesive Placegasketon retainerringand place retainerring aroundwindow Installwindowfrominsidecabin d Secureretainerring e Installtrim mouldingaroundinsidewindow f Applybeadof sealantaroundouterperi...

Page 831: ...lyPR142Primer NOTE 2 Sandpaint sealant etcfromcutoutedge CleanwithStoddardsolventandapply coatof PR142primer CHANNEL SUPPORT 15 TO 25 MASKTHISLINETO PREVENT SANDING EXPOSED WINDOW SEENOTE1 VINYL TAPE...

Page 832: ...NTENANCE MANUAL Note SealSurfacesindicatedwithPR383conforming to MIL S 11031B Outer Plate Cover Placard Inner Outer VIEW A A Intercostal Channel Intercostal i VIEW B B HandleCover SafetyWire Handle Mo...

Page 833: ...E PAGES CHAPTER SECTION 57 EFFECTIVITY 57 CONTENTS 57 00 00 57 10 00 57 10 00 57 10 00 57 10 00 57 10 00 57 60 00 CHAPTER DATE SECTION PAGE 1 1 1 1 2 3 4 5 1 PAGE DATE Jan 10 90 Jan 10 90 Jan 10 90 Ja...

Page 834: ...AINTENANCE MANUAL CHAPTER 57 WINGS TABLEOFCONTENTS SUBJECT CHAPTER PAGE Description andOperation Removalof Wing Installationof Wing Ailerons AileronBalancing Procedure 57 00 00 57 10 00 57 60 00 1 1 2...

Page 835: ...ough section which creates a continuous main spar Additionalsupportfor thewingis alsoprovidedbyfront and rearsparconnections Attachedto eachwingarethe engines ailerons andflaps Theenginenacelles locat...

Page 836: ...plyto bothwings 9 Blockailerontrim cableat sideof fuselageandwithinwingto preventtrimdrumfromunwrapping Disconnect trim cableturnbucklesatwingstation90 00 Drawcablesinboardthroughwing 10 Removecablegu...

Page 837: ...t blocks andclamps 16 Connect electrical wireconnectors 17 Through wingfairingaccess openings atunderside offuselage connect fuel hydraulic lines and fuelvalvecontrol cables 18 Drawflexible driveshaft...

Page 838: ...PIPER AIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL 401 WingInstallation Figure401 Sheet1 of 3 EFFECTIVITY 040 999 57 10 00 PAGE3 57 10 00 Jan 10 90...

Page 839: ...RIGHT PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL LB BOLT AN3 6A WASHER AN960 10 WASHER AN960 10L NUT MS20365 1032C 2 REQ LEFT 2 REQ RIGHT BOLT AN3 6A WASHER AN960 10 NUT MS20365 1032C...

Page 840: ...T 1REQ RIGHT PIPER AIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL NOTE Referto Installation of Wing StepB 7 fortorquevalue SKETCHC BOLT WING ATTACHMENT LOWER P N59824 TORQUE 480 600 IN LB SKET...

Page 841: ...d Ensuresurfacerotatesfreelywithno bindingat knifeedges e Verifyunbalanceisbetweenlimits 17 0 2 inch pounds leadingedgeheavy f Ifaileronistrailingedgeheavywithmastertestweightinstalled determineandcor...

Page 842: ...0 61 10 00 61 20 00 61 20 00 61 20 00 61 20 00 61 20 00 61 20 00 61 20 00 61 20 00 61 20 00 61 20 00 PAGE 1 1 1 1 2 3 4 5 1 2 3 4 5 6 7 8 9 10 CHAPTER DATE SECTION Jan 10 90 Jan 10 90 Jan 10 90 Jan 10...

Page 843: ...ationof PropellerConstantSpeedGovernor 1 ConstantSpeedGovernorAdjustments 1 Removalof Overspeed Governor 2 Installationof OverspeedGovernor 2 OverspeedGovernorOperationalChecks 3 AutofeatherSystem 3 A...

Page 844: ...pellergovernors Centrifugalcounterweights assistedbya featheringspringmovethe bladestowardthe lowrpm highpitch positionand intothe feather position Thismovementisopposedbyoil pressurecontrolledbythe p...

Page 845: ...e 401 Lever PropDeicer TORQUE SEQUENCE A B Block Assembly Assembly Deicer EngineMounting Flange 0 Ring SpinnerBulkhead SECTION A A SlipRingAssembly Deicer FlexLocknut Piston Nut Ring RodEnd BetaNuts L...

Page 846: ...llfeedbackringpuller P N51519 Pullfeedbackringfullyforward Usestandard5 8 inch socketagainstpropellerhub Figure402 6 Removesafetywirefrompropellermountingboltsand removebolts 7 Placedrip panunderprope...

Page 847: ...g 2000RPM 27 degrees PropellerTorqueLimits Description Required Torque PropellerMountingBolts 100 105ft lb lubricate threads withpetrolatedgraphiteMIL T5544 SpinnerBulkheadAttach mentScrews 65 100in l...

Page 848: ...blepartsforwear andsafety 5 Donot letsteelhub partsrust Usealuminumpaintto touchup ifnecessaryor replaceduring overhaul CAUTION DONOTATTEMPTTO ROTATE PROPELLER BLADESUSINGBLADEARMS DAMAGINGFEEDBACK RI...

Page 849: ...for removing nicks cracks andscratchesis byusingrifflefile and orcrocuscloth Bent Tip Propeller Exaggerated Viewof Nickin Faceof Blade BlendDeepestPortion of NicksIntoLeading Edge AlignmentWith Smooth...

Page 850: ...otterpin f Connectpneumatictubeatgovernor torquecouplingnut90 100inch pounds and lockwire g Connectandsecureelectricalconnections to governor h Connectproppitchcontrolrodto governorcontrollever i Chec...

Page 851: ...ter Figure501 to meetthis requirement I Shutdownengineandreconnectair bleedlinkto interconnect rod m Restartengineandcheckreversepowersetting Feathering GovernorMaximum Adjuster SpeedAdjustment Pneuma...

Page 852: ...s removed Twoautofeather conditionscannotoccursimultaneously 8 AutofeatherSystemOperation Thesystemiscontrolledbyan ARM OFFswitchand a separatetestswitchlocatedon the lower leftinstrumentpanel alongwi...

Page 853: ...0 0 approx RemoveconnectorE411fromcomputer c Ensureautofeathercircuitbreaker locatedon rightsideof non essential circuitbreakerpanel is pushedin d Establish28 Vdcelectricalpoweron non essential bus e...

Page 854: ...Manual P N761 853 61 22 01forelectricalschematicdiagram of PropellerSynchrophaser Installation NormalFlight a Synchronize enginesmanually b Turnsynchrophaser switchON If synchrophaser failsto synchron...

Page 855: ...mconnector Controlboxdefective Adjustpickupoutputor replacepickupas required Replace Replace RPMsurgeor hunt Synchrophaser gaintoo high Recalibrate governoron teststand Synchrophaser coil leads aircra...

Page 856: ...nsurepolarityof pin B is positiveandpinA is negative c Aftercompletionof preceding tests connectcontrolbox d Usean oscilloscopeto checkvoltageoutputof governormagneticpickup EFFECTIVITY 040 999 61 20...

Page 857: ...nds c Slowly reduce leftpropeller rpmuntilsynchronization islost d Turnsynchrophaser OFFandlistenfortheaudible beatfrequency ofpropellers Record total number of beatsfora20second timeperiod or10second...

Page 858: ...wo screwsand liftout b Installation of ControlBox 1 Setcontrolboxintopositionon bottomclip 2 Attachtwoscrews 3 Screwinconnector 15 MagneticPickup CAUTION DONOTHAMMERORJARMAGNETICPICKUPS DOINGSOWILLDEC...

Page 859: ...ced byonetarget onflyweight head Donotinterpret peaktopeakvoltage withanyrmsreading voltmeter TEST BETWEEN RECEPTACLE NUMBER OSCILLOSCOPE ONLY VOLTSAC PEAKTO PEAK RPMSETTING D and E CandG D and E C an...

Page 860: ...00 00 71 00 00 71 06 00 71 00 00 71 00 00 71 00 00 71 00 00 71 00 00 71 10 00 71 10 00 71 20 00 71 30 00 CHAPTER DATE SECTION PAGE 1 1 1 1 2 3 4 5 6 7 8 1 2 1 1 PAGE DATE Jan 10 90 Jan 10 90 Jan 10 90...

Page 861: ...00 PowerPlant DescriptionandOperation FaultIsolation EngineRemoval EngineInstallation EngineBuildup Cowling Removalof Cowling Installation of Cowling Cleaning Inspection and Repairof Cowling Mounts Re...

Page 862: ...resecuredbytwotensionlatches Theoil quantitydipstickis locatedinsidethe leftaccessdoor Anair inletductfor startergeneratorcoolingis locatedon the lowerleft sectionof bothcowls The outletductis located...

Page 863: ...orflowfrom FCU outlettubeto startingflow controlwhile motoring engine If no flow remove FCU checkbypassvalveby applying5 psi max to bypass returnportandcheckfor air leakagefrom FCUinlet If leakageisfo...

Page 864: ...ru mentation Controllinkageadjusted incorrectly Propellergovernorpneumatic sectionadjustedincorrectly Leakor restrictioninfuel controlpneumaticsystem Enginepowersettingsnot adjustedcorrectly Defective...

Page 865: ...seals C Defectiveoil to fuel heater internalleakage t min P Yline leaking C Leakor restrictionin P 3line C Iceaccumulation inP 3line C Remedy Check system andrepairas ecessary ill oiltank as required...

Page 866: ...r HeadandNut AN960 716L Washer UnderNut A Torqueto 225 to 300 Engine FireSeal I Inch Pounds VIEWA A REARVIEW Torque to 170 200 Inch Pounds STA STA 56 97 75 70 STA STA 96 00 106 00 LEFTSIDEVIEW Power P...

Page 867: ...rqueto 170 200 Inch pounds Engine Fireseal STA 106 00 Engine Mount STA 56 97 TOPVIEW STA STA 96 00 75 70 STA STA 106 00 96 00 STA 75 70 STA 56 97 RIGHTSIDEVIEW PowerPlantInstallation Figure401 Sheet2...

Page 868: ...op leftandtop rightfire sealsfrom engine 11 Disconnectalldrainlinesattachedto engineandfuellinesattachedto scavengepump CAUTION DONOTBENDPOWERCONTROL CABLEIN DIRECTION OFFERINGGREATEST RESISTANCE WHIC...

Page 869: ...o properconnectionson engine Securewithappropriate clamps Referto latestrevision of PiperServiceLetter727for information on firewallinspection 4 Routepropellercontrolcablethroughbracket clampassembly...

Page 870: ...1 The procedure for installingcowlingis the sameforeitherengine a Positionand supportlowercowlingin place Securecowlingwithfastenerspreviously removed b Connectrodto ice deflectordoorand installaccess...

Page 871: ...INTENANCE MANUAL A Cowling continued NOTE Adjustlatchessothat forcerequiredto closelatchesis inthe range of 8 to 12pounds Do notexceed15 pounds LowerForward Cowl CowlingInstallation Figure401 EFFECTIV...

Page 872: ...eenginemountingboltsandforwardhalfof the mountassemblies d Carefullyraisethe enginejust enoughto removethe shockmounts Checkall lines wires and cablesfor interference Disconnectlinesandcablesifnecessa...

Page 873: ...ge forward andaftof engine compressor intake Thefireseals constructed ofsemicircular sections aredesigned toforma firesealbetween the engine andcowling Thefiresealsalsoprovide a mounting location ands...

Page 874: ...NTS 73 00 00 73 10 00 73 10 00 73 10 00 73 10 00 73 10 00 73 20 00 73 30 00 73 30 00 73 30 00 CHAPTER DATE SECTION PAGE 1 1 1 1 2 3 4 5 1 1 2 3 PAGE DATE Jan 10 90 Jan 10 90 Jan 10 90 Jan 10 90 Jan 10...

Page 875: ...f FuelControlUnitforService Off Engine 1 Preparationof FuelControlUnitforService On Engine 1 PreparationforShipping 1 Removalof FuelControlUnit 1 Installationof FuelControlUnit 1 FuelControlUnitChecks...

Page 876: ...odyto block fuelinletportandallows fuelwithinprimary andsecondary manifolds to drainoutdumpport Afuelscavenge system collects thisresidual fuelafterengine shutdownand duringstartup Theexcess fuelisthe...

Page 877: ...emblies NOTE Referto Prattand WhitneyMaintenance Manualp n 3034342 Chapter73 for Functional Checkof FuelManifoldAssemblies 4 EngineDrivenFuelPumps a MainFuelSupplyPump Figure301 Themainfuel supplypump...

Page 878: ...pressure 33 1 psi at 80 rpm and 300 pounds hour flow rate Accessory Pad H on Engine AdjustFuel PressureHere To Tee on Fuel Oil Heater DualDrive SupportBracket DualDrive AdapterAssembly Pump To Fuel Fi...

Page 879: ...NCE MANUAL A Distribution continued DriveShaft Discharge Filter Element Preformed Packing Discharge Filter Cover InletFilter Cover Inlet Filter Element Preformed Packing Preformed Packing FuelControlU...

Page 880: ...AL A Distribution continued Spring Clamp LineConnector to SolenoidValve ModifiedElbow OverflowDrain Line O Ring AN924 4 Nut SpringWasher Jet Nozzle FuelScavengeCan O RingSeal Fuel Overflow CheckValve...

Page 881: ...d returnsfuelto nacelletank Whenstarter is released the solenoidvalveis returnedto the closedposition Anoverboardvent lineis attachedto scavengepumpin the eventof a malfunction The presence of fuel be...

Page 882: ...nitassuringcompletefilm on all partsand passagesinfuelsection b Afterpreservation processis complete drainoilfromcontrolunit Replaceall capsand plugs previouslyremoved c Whenpackagingunitfor shipping...

Page 883: ...connector fromfuelflowtransmitter 3 Disconnect fuellinesattached tofuelflowtransmitter andremove transmitter 4 Capallopenfuellinestoprevent contamination b Installation ofFuelFlowTransmitter 1 Attachm...

Page 884: ...e Setmustbecapable of providing and monitoring staticpressures from0 50psiusing engine oil 2 Turnaircraft master switchON 3 Withfittingsloosened andvalvetowards line turnhandle clockwise untilairisble...

Page 885: ...NTENANCE MANUAL A Indicating continued 2 FuelFlowIndicatingSystem continued CHART1 FUELSYSTEMCALIBRATIONDATA PSI TOLERANCE 0 5 10 13 20 25 30 33 40 45 50 0 psito 15psi 2 psi 16 psito 50psi 5 psi EFFEC...

Page 886: ...PAGES CHAPTER SECTION 74 EFFECTIVITY 74 CONTENTS 74 00 00 74 10 00 74 10 00 74 20 00 74 20 00 74 20 00 74 20 00 CHAPTER DATE SECTION PAGE 1 1 1 1 2 1 2 3 4 PAGE DATE Jan 10 90 Jan 10 90 Jan 10 90 Jan...

Page 887: ...un Distribution Igniter Plugs Removal of IgniterPlugs Installation of IgniterPlugs Inspection of IgniterPlugs Cleaning of IgniterPlugs Ignition Cables Removal of Ignition Cables Installation of Igniti...

Page 888: ...anddischargethe capacitoracrosstwo sparkigniters Thedesignof the systempermitsoperationof one sparkigniterifthe otherstopsfunctioning The hightensioncableassembliescarryan electricalchargefrom ignitio...

Page 889: ...bserve all safety precautions whenhandling thisunit WARNING RESIDUALVOLTAGE INTHE EXCITERCANBEVERYHIGH ENSURE IGNITIONISOFFANDSYSTEMISINOPERATIVE FORAT LEASTSIX MINUTESBEFOREREMOVING COMPONENTS ALWAYS...

Page 890: ...pingsoundwithfrequencyof approximately one snapper second Ifsnappingis audible ignitionis satisfactory e Secureengineby movingCONDITION leverto STOPposition Switchignitionandbattery masterswitchesOFF...

Page 891: ...of IgniterPlug CAUTION IF IGNITERPLUGIS DROPPED INTERNALDAMAGE NOTDETECTABLE BY TEST CANOCCUR AND IGNITERPLUGMUSTBEREPLACED CAUTION DONOTUSEANYTHREADLUBRICANT ON IGNITERSDURING REINSTALLATION TO ENGIN...

Page 892: ...r Acceptable Wear WornOut NOTE Fordimensions A andB refer to Chart1 IgniterPlug Figure601 DimensionB d Cleaning of Igniter Plugs 1 Capcableendof igniter plugtoprevent foreign material fromentering dur...

Page 893: ...apter74for Removal of IgnitionCables b Installation of IgnitionCables NOTE Referto Prattand WhitneyMaintenanceManual p n 3034342 Chapter74 for Installation of IgnitionCables c Inspectionof IgnitionCab...

Page 894: ...ramManual p n761 853 section74 20 01 a Testof IgnitionSystem 1 Testfor properannunciationandoperationasfollows a Positionenginecontrolleversfor start Placeignitionswitchin MANUALposition Amberannuncia...

Page 895: ...er MAINTENANCE MANUAL CHAPTER 75 LIST OF EFFECTIVE PAGES CHAPTER SECTION 75 EFFECTIVITY 75 CONTENTS 75 00 00 CHAPTER DATE SECTION PAGE PAGE DATE 1 1 1 Jan 10 90 Jan 10 90 Jan 10 90 LIST OF EFFECTIVE P...

Page 896: ...PIPER AIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL CHAPTER 75 AIR TABLE OF CONTENTS CHAPTER 75 00 00 SUBJECT PAGE Air General 1 EFFECTIVITY 040 999 CONTENTS PAGE 1 Jan 10 90...

Page 897: ...ded Onesystemprovidesair for bearingcompartmentsealing A secondsystemprovidescoolingair The thirdsystemprovidesairfor the compressorbleedvalveand airframeservices Referto Prattand WhitneyMaintenance M...

Page 898: ...11 Jan 10 90 76 10 00 12 Jan 10 90 76 10 00 13 Jan 10 90 76 10 00 14 Jan 10 90 76 10 00 15 Jan 10 90 76 10 00 16 Jan 10 90 76 10 00 17 Jan 10 90 76 10 00 18 Jan 10 90 76 10 00 19 Jan 10 90 76 10 00 20...

Page 899: ...ts PriorToFirstRun 8 Riggingof RearLinkage FuelControlUnit and PropellerControlCamAssembly 8 PowerLevelControlInstallation 15 FrontEndRigging 15 Condition StartControl LeverRigging 16 PropellerControl...

Page 900: ...rcontainsprocedures for the installationand adjustment of the Pratt WhitneyCanada PT6A 61enginecontrols Referto PrattandWhitneyMaintenanceManual p n 3034342 Chapter76 for moreinformation on EngineCont...

Page 901: ...ETO COIL INTOTHENEWPLANE CAUTION NEVERLUBRICATE CONTROL CABLEASSEMBLIES CAUTION DONOTTWIST CRIMP DENT APPLYSIDEPRESSURE ORSTANDON CONTROL CABLEASSEMBLY CAUTION DONOT COILCONTROLCABLELIKEA ROPEORFORCEI...

Page 902: ...A PowerLeverControl Cable continued 1 Storage andHandling continued SeeViewA Step1 Step2 Step 3 Step 4 6 50 STROKE 5625 18UNF 3A 44 DIATYP 34DIATYP WingCableConnection ViewA Power LeverControl CableH...

Page 903: ...erleverto idle Camfollowerpinon propellerreversecammustbe in idle detent 2 Insertcamriggingpin Donot disturbenginerigging SeeFigure401 j If necessary removecablesectionbetweenwingconnectionand engine...

Page 904: ...TION DURINGINSTALLATION CABLESHOULDBE ROUTEDWITHOUT RESTRAINT AT EITHEREND DONOTTWISTORUSEUNDUEOR EXCESSIVEFORCE a Installcablesection between wingconnection andengine NOTE Beforeinstalling newcablese...

Page 905: ...RESTRAINT TO EITHEREND TWISTINGOREXCESSIVE FORCEWILL DAMAGECABLE NOTE Beforeinstallingnewcablesection be surerespectivecableendsareat their properposition NOTE Beforeinstallingcable checkthat camfollo...

Page 906: ...screws Exactcylinder adjustmentmustbe accomplished duringenginegroundrun Referto Autofeather Adjustmentthis section 14 Connect and safetywingconnector 15 Checkthat cableis routedcorrectlyand nottwist...

Page 907: ...ol Cable continued Power Throttle CableHousing PowerLeverControlCableEngineConnections Figure402 Autofeather MicroSo ActuatingCylinder evis PowerLever Throttle witch A 1 00Inch racket Power Lever Cont...

Page 908: ...aintenance Manual p n3034342 fortheoperating principles andfunctions of engine mounted controls NOTE Toreplace power controlcable referto Power LeverControl Cable inthischapter 1 Rigging OfRearLinkage...

Page 909: ...ntrol unitpower leverisfirmlyagainst lowidlestop Useserrated spacer onfuelcontrol unittoadjust NOTE See Figure503for Woodward TypeII fuelcontrolunit SeeFigure504 for WoodwardTypeIIIfuelcontrolunit The...

Page 910: ...ERAIRCRAFT PA 42 720 AdvancedTrainer MAINTENANCE MANUAL B EngineControlAdjustmentsPriorToFirstRun continued FuelControl Unit Lever OverallView EngineControls Figure1 EFFECTIVITY 040 999 Jan 10 9076 10...

Page 911: ...rm RiggingPin 0 090InchDiameter PIPERAIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL B EngineControlAdjustmentsPriorTo FirstRun continued PowerLever Throttle A 1 00Inch B 1 10Inch 0 10 SupportB...

Page 912: ...EngineControlAdjustmentsPriorToFirstRun continued RodEnd Bearing Propeller Cam Push Pull Cable RearEndClevis 55 FuelControl Serrated Arm Spacer Interconnect RodRigging Figure405 Outer Serrations FuelC...

Page 913: ...To FirstRun continued Inner Serrations HighIdleStopAdjustment 0 73 PerTurn E MaximumReverse PowerStop ConditionLeverCable ADJUST dieStopAdjustment PerTurn DO NOTADJUST ConditionLeverCam Maximum Forwar...

Page 914: ...ConditionLeverCable DONOT ADJUST DeadBandStopScrew aand Adjustment DONOT ADJUST Power Lever DONOTADJUST NgMaximum Forward Stop IdleAdjustment 2 PerFlat Loosen Lower ScrewandTighten Upper Screw ToLower...

Page 915: ...levisfrompropeller control cam i Refer to Figure 503or504 Movecockpit power leversintoreverse modeuntilfuelcontrol unit power levercontacts maximum reverse power stop Refer to Figure 406 Adjust revers...

Page 916: ...ure507 Setcockpitconditionleverto locaterollerinlowidledetent c Referto Figure506 Positionfuel controlunitconditionleverarmin lowidleposition d Inserta 0 187inchbolt riggingpinthroughelongatedholein c...

Page 917: ...hole in arm extension d Usingbolt spacer two washers and nut attach rod end to arm extension e Tighten rod end bearing jam nut to a torque of 35 40 inch pounds f Move both cockpit propeller levers fo...

Page 918: ...Prior To First Run continued WireRope Cable WireRopeFront EndClevis Propeller Reversing Arm BetaControl Clevis BetaValveClevis Slot Face Beta Stop RodEndBearing Interconnecting Rod InnerPart Pulley In...

Page 919: ...ineControlAdjustments PriorToFirstRun continued ConditionLeverRoller CockpitConditionLever CockpitCondition StartControl Lever Figure507 Governor Arm GovernorArm Washers Nut JamNut Extension Constant...

Page 920: ...F MORETHANTHREESTARTCYCLESAREREQUIRED ALLOWA 30 MINUTE COOLINGOFFPERIODTO PREVENT OVERHEATING STARTER f Motorengine withstarteruntilcleanfuelisdraining fromfuelsupply line g Checkthefollowing duringen...

Page 921: ...A PILOTOROTHERRESPONSIBLE PERSONEXPERIENCED ONENGINESTARTANDSHUTDOWNPROCEDURES ANDOTHERSYSTEM FUNCTIONSREQUIRED TO PROPERLY ANDSAFELYOPERATE ENGINES REFERTO PILOTSOPERATING MANUALFORREQUIREDINFORMATIO...

Page 922: ...ck Checkthat ignitionison at not lessthan250 foot pounds torque 4 Referto 74 10 00and74 20 00for correctiveaction h Checkenginealignment Referto Chart2 OPERATING CONDITION POWERSETTING SHP TAKEOFF 720...

Page 923: ...105 135psigatgasgenerator speeds above 72 andoiltemperatures between 60 70 C Oilpressures below105psigareundesirable andindicate oilfiltercouldbe restricted Oilpressure between 60and105psigmustonlybet...

Page 924: ...ckupPoint 1900RPMCK Obs Torque Q ResetQ ResetQ ResetQ Final1900RPMQ Tolerance 30 ft lb of targetvalue 30 ft lb betweenengines IDLESET PressureAltitude OAT Compute1900rpmQ FromChart3 Ft Ft Lb In In In...

Page 925: ...rd TypeIIIfuelcontrol unitseeFigure 504 2 Positioncockpitconditionleverin lowidledetent 3 Setfuel controlunitidleadjustmentto produce56 to 58 percentNg a Woodward TypeIIfuelcontrol unit Ngwillchange 0...

Page 926: ...ece of paperbetween deadbandscrewanddeadbandstop Slowlymove linkage toward forward range until a Deadbandscrewcontactsstopwith justenoughpressureto holdpapertight b Anymovementof linkagetowardreverser...

Page 927: ...PA 42 720 AdvancedTrainer MAINTENANCE MANUAL C EngineRunAdjustments continued CHART3 1900RPMTORQUECURVE 860 EXAMPLE GIVEN 1 PA 500FT 2 OAT 30 80 45 35 25 15 5 5 5 25 45 45 040 999 76 10 00 PAGE 27 76...

Page 928: ...ltsin30foot pounds torqueincrease e Reverse maximum poweradjustment 1 Location Reverse power stoponpower control cable Figure 406 2 Determine maximum reverse power a Runengine Placecockpitpower levers...

Page 929: ...cockpit propeller control leverfullforward highrpm Check thatlever hasa0 06inchspring back 3 Advance power lever Npshould increase to andstabilize at 2000rpm 4 Referto Figure 511 Adjustmaximum rpmstop...

Page 930: ...f masking orothersuitable tapeonupperpedestal coverbetween power levers 3 Startbothengines 4 Advance bothpowerleversto80to 83percent Ng Markpower leverposition ontape 5 Shutdownengines 6 Setpowerlever...

Page 931: ...enstaggeris uniformbetweentorquesof 300 and 1000foot pounds NOTE Beforeadjustingfuel controlunitserratedspacer scribea lightreference across serratedparts NOTE Referto RiggingOf RearLinkage FuelContro...

Page 932: ...er rpm Np engine torque Q andfuelflow F F ofbothengines d Determine theaverage Ng e Adjustpower tooperate bothengines attheaverage Ng 6 If knobsplitremainsmorethan 1 8knob buttorquedifferenceis 30 foo...

Page 933: ...justments continued 3 Engine Running Adjustments continued Air BleedLine ResetArm PneumaticMinimum AdjustmentScrew Interconnecting Rod PropellerGovernor RightSideView Figure511 Propeller Control Lever...

Page 934: ...otoringRun Thedry enginemotoringrun is used 1 Toclearengine oftrapped fuelorvaporsafteranunsuccessful engine start 2 Tocheckfuelsystem for leaksafteracomponent replacement 3 Ifthereisevidence ofafirew...

Page 935: ...TENANCE MANUAL C EngineRunAdjustments continued CHART4 POWERASSURANCE CHECK PT6A 61 POWER ASSURANCE CHECK MAXIMUMVALUES 24 550 0 105 100 j 95 95 90 85 85 STATIC INSTALLED PROP SPEED 2000 RPM BLEED OFF...

Page 936: ...ingpropellerfeatheringcheckduringthe first flightfollowingan engine installation 1 Installedengine Poweroff 2 Installedengine Propellerfeathered 3 Operatingengine Maximumcontinuouspower 4 Airspeed 118...

Page 937: ...ed position Check thatalladjustment screws arein contact withguidecollar i Refer to Figure 514 Installdomenut Tighten toa torque of 120foot pounds Startengine Cyclepropeller intoandoutoffeather k Chec...

Page 938: ...t continued 2 ExternalFeatherStopAdjustment continued SECTION A A A 2626 Screw Piston LinkArms Cylinder NOTE Uselengthof A 2626 screwasrequired to maintain a minimum of 1 2inchof screw engagedinpiston...

Page 939: ...TENTS 77 00 00 77 10 00 77 10 00 77 10 00 77 20 00 77 20 00 77 20 00 77 20 00 77 20 00 77 20 00 77 30 00 CHAPTER DATE SECTION PAGE 1 1 1 1 2 3 1 2 3 4 5 6 1 PAGE DATE Feb 1 98 Jan 10 90 Jan 10 90 Jan...

Page 940: ...ion Tachometer Generators PropellerandGas Generator Removalof Generator Installation of Generator 77 20 00 Temperature InterTurbine Temperature SensingSystem DescriptionandOperation Resistance Checkof...

Page 941: ...ncedTrainer MAINTENANCE MANUAL EngineIndicating A General Thischapter describes howto remove calibrate andinstall system components thatindicate engine operating conditions EFFECTIVITY 040 999 Page 1...

Page 942: ...Loosenfittingsand pointvalveknobtowardline 5 Turnhandleclockwiseuntil air is bledfromline evidentwhenoil isobserveddrippingfrom fitting Tightenfitting 6 Turnvalveknobtowardreservoir turn handlecounter...

Page 943: ...stemCalibration Figure501 CHART1 TORQUESYSTEMCALIBRATION DATA PSIG 13 08 16 36 26 17 32 71 39 25 45 79 52 33 58 87 62 15 65 42 71 96 72 94 FT LBS 400 500 800 1000 1200 1400 1600 1800 1900 2000 2200 22...

Page 944: ...tsideof thereduction gearbox caseandrotates clockwise a Removal of Generator 1 Disconnect theelectrical connector fromthegenerator unit 2 Remove thefourmounting nutsatthebaseofthegenerator CAUTION IMM...

Page 945: ...ilontheInterturbine Temperature Sensing System b Resistance Check of Engine InterTurbine Temperature System Thischeckshouldbe performedusinga Barfield2312 G Temperature IndicatingSystemTest Set availa...

Page 946: ...F ADDtheabsolute millivolts obtained fromChart2 tothemillivolt values shown onChart1 4 ForOAT s greater than0 C 32 F SUBTRACT theabsolute millivolts obtained fromChart2fromthemillivolt values shown o...

Page 947: ...ontinued MeterTerminal Chromel Terminal SmallHole AlumelTerminal LargeHole MeterTerminal Thermocouple HarnessLoopResistance Check Figure601 Barfield Meter Chromel Terminal SmallHole AlumelTerminal Lar...

Page 948: ...leadandthe redcliptotheChromel red lead L Calibration Adjust Black Inter Turbine Temperature CalibrationCheck Figure603 CHART1 BASICMILLIVOLTS ANDTEMPERATURE VALUES Temperature 950 C 850 C 800 C 750...

Page 949: ...it Graph Deg 0 1 2 3 4 5 6 7 8 9 10 F 40 30 20 10 0 1 527 1 322 1 114 0 904 0 692 0 0 692 10 0 478 20 0 262 30 0 044 40 0 176 50 0 397 60 0 619 70 0 843 80 1 068 90 1 294 1 547 1 342 1 135 0 925 0 714...

Page 950: ...NGE ACFT LEADS RES PIPER AIRCRAFT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Temperature continued 1 InterTurbine Temperature Sensing System ITT continued BARFIELD DisplayWindow Set SystemResista...

Page 951: ...airtemperature IOAT thegasgenerator parameter values of inter turbine temperature ITT compressor speed Ng andfuelflow Wf forparticular output shaftspeeds Np andtorques arepredictable within reasonabl...

Page 952: ...ER SECTION 79 EFFECTIVITY 79 CONTENTS 79 00 00 79 00 00 79 20 00 79 20 00 79 20 00 79 20 00 79 30 00 79 30 00 CHAPTER DATE SECTION PAGE 1 1 1 2 1 2 3 4 1 2 PAGE DATE Jan 10 90 Jan 10 90 Jan 10 90 Jan...

Page 953: ...o FuelHeater Removalof OilCooler Installation of OilCooler OilFilterElementMaintenance OilCoolerExhaustDoor Removalof OilCoolerDoorTransmission Installationof OilCoolerDoorTransmission Cleaning Inspec...

Page 954: ...tothe rearof the ductandfunctionsthroughan electricscrewjack Twootherimportantserviceitemsarethe oildrainand breatherline A T typefitting locatedonthe rightside of eachenginecompartment is usedfordrai...

Page 955: ...FT PA 42 720 Advanced Trainer MAINTENANCE MANUAL A Description and Operation continued RETURN FROMCOOLER PRESSURE OIL PROPELLER SUPPLY OIL SCAVENGE OIL BREATHER AIR TORQUEMETER PRESSURE Engine Oil Sys...

Page 956: ...erto Prattand WhitneyMaintenance Manual p n3034342 Chapter73for detailson removing inspecting cleaning andinstallingthe oil to fuelheater 3 Removal of Oil Cooler Figure401 a Removebothupperandlowereng...

Page 957: ...rainer MAINTENANCE MANUAL A Distribution continued OutletHose Outlet Oil CoolerInstallation Figure401 Cover PreformedPacking TeflonSpacer PreformedPacking FilterElement PreformedPacking Oil FilterAsse...

Page 958: ...ansmissionassembly in mountingbracketwith rodprotrudingthroughoilcooler duct Securewithproperattachmenthardware Allowtransmission to rotateon its mountingbracket 2 Connectelectricalleadsto transmissio...

Page 959: ...entransmission assembly isdisassembled foranyreason repack 75percent fullwith Dukes P N2196 74 1 grease d Adjustment oftheOilCooler Door Figure 402 1 Adjustsleeve ontransmission rodsooilcooler doorisf...

Page 960: ...5 Turnvalvetowardsreservoirandturnhandlecounterclockwise 6 Turnvalvetowardslineand turnhandleclockwiseagainto attainhighpressureof 135psi 7 Comparetestgaugereadingwithoil pressuregaugereading 8 Turnh...

Page 961: ...5768 8 gasketinengine oilandinstall onunit b Screwfittingassembly intobossunituntilitbottoms tightlyinengine fitting CHART2 OILTEMPERATURE BULBSPECIFICATIONS C OhmsResistance C OhmsResistance 40 40 F...

Page 962: ...6 Jan 10 90 91 00 00 7 Jan 10 90 91 00 00 8 Jan 10 90 91 00 00 9 Jan 10 90 91 00 00 10 Jan 10 90 91 00 00 11 Jan 10 90 91 00 00 12 Jan 10 90 91 00 00 13 Jan 10 90 91 00 00 14 Feb 1 98 91 00 00 15 Jan...

Page 963: ...exibleHoses ConsumableMaterials VendorInformation EngineTorqueValues TorqueRequirements Lubricationof Threads Lubricationof Gasketsand Seals DecimalConversion SpecialTorques TorqueConversions MetricCo...

Page 964: ...re foundper plait braid or morethansixbrokenwiresper linealfoot Brokenwiresin an areawherekinkingis evidentis alsoa causefor rejection CAUTION Puncturing the outercoverof the hosemaycausedamageto the...

Page 965: ...use in aircraft hydraulic pneumatic coolant fuel andoil systems Operating Temperatures Sizes 3 thru 12 Minus 65 F to plus250 F Sizes 16 thru 48 Minus40 F to plus275 F NOTE Maximum temperatures and pre...

Page 966: ...oduct ArmiteLaboratories ExxonOilCompany Anti SeizeCompound Royco44 RoyalLubricantsCo ArmiteLaboratories Anti SeizeCompound WhiteLeadBase TT A 580 JAN A 669 ArmiteProduct Anti SeizeThread Compound HIG...

Page 967: ...upermilGrease No A72832 Royco27A Shell6249Grease RR 28 Castrolease A1 Low Temp GreaseE P 5114E P Grease AV55 Aeroshell Grease 7 Braycote 627S MobilGrease 27 Amoco RoyalLubricantsCo ShellOilCompany Soc...

Page 968: ...e3 XSG 6280 Code71 003 MIL G 81322 MarfaxAll Purpose AeroshellNo 6 MobilGrease77 or MobiluxEP2 ShellAlvaniaEP2 Royco22 VENDOR TexacoIncorporated ExxonCompany U S A ShellOilCompany TexacoIncorporated S...

Page 969: ...ter 3 in long MIL H 5606 PRODUCT Regal AFB2Regal StarfakPremium PED3040 AeroshellGrease6 RoycoII Aeroshell Grease No 17 Royco64C Castrolease MSA c Royco32 CastroleasePV ParkerFuelLube44 B P Aero Greas...

Page 970: ...ilCompany MobilOilCorporation RoyalLubricants Co IsopropylAlcohol IsocrylTape Kevlar LeakDetector Solutionfor OxygenSystems Loctite Methylethylketone Molybdenum Disulfide Fed Spec TT 1 735 PMS C1012 2...

Page 971: ...Oil AviationInstrument Oil Royco363 Repcon Flextred300 PRC5000 PRC383 RS 36b Stripper thin RS 24b Stripper thick PR1422A 2Sealant Brushing Consistency PR 1422B 2 Sealant Trowling Consistency PR 1431G...

Page 972: ...95 Epoxy Resin 22LA 0340 Polyamid Hardener Sealant Fuselage Structure Class A 1 2 A 2 B 2 B 4 B 6 B 8 H S BancroftCorp EC 1239 MinnesotaMiningand Manufacturing IndustrialSpecialties Division EC 612 Le...

Page 973: ...sion Fed Spec PD680 TypeI Stoddard Solvent LocalSupplier TypeII High Temperature LocalSupplier Corrosion Reaction Consultants Inc PropellerSlip Ring CleaningSolvent CRC 2 26 Toluol TT M 261 LocalSuppl...

Page 974: ...1 8in 530 Series TypeI 1 8in x 1in 501Series TypeII 2 in x 9 mil and or 1 1 2 in x 9 mil MIL C 16173 D LPS 3HeavyDuty PiperP N 197 508 RustInhibitor PiperP N 197 509 MetalPartsProtector ProtectorFlex...

Page 975: ...19025 D DextrexChemical P O Box501 Detroit MI 48232 DowComingCorporation AlphaMolykotePlant 64 HarvardAvenue Stanford CT06902 DukesAstronautics Co 7866DeeringAvenue CanogaPark CA91304 DuPontCompany Fi...

Page 976: ...lvd Gardena CA 90248 213 321 0710 Rockwell International 600 Grant Street Pittsburgh PA 15219 412 565 2000 Royal Lubricants Company River Road E Hanover NJ 07936 201 887 3100 S Schnee Moorhead Chemica...

Page 977: ...enginenut bolt or screwtorquesusinga threadlubricant engineoil or equivalent andtorquelimits CHART 5 ENGINE TORQUE VALVES THREAD SIZE 190 32 250 28 3125 24 375 24 374 376 437 20 TORQUE MIN IN LBS TORQ...

Page 978: ...OT OVERTORQUE FITTINGS NOTE Wheninstallingflaredfittings verifythat malethreadsareproperlylubricated Usetorque fittingsvaluesin Chart 6 CHART 6 FLARE FITTING TORQUE VALUES TORQUE INCH POUNDS TUBING OD...

Page 979: ...d inthetextof thismanual supercede thetorques giveninCharts A and B 5 Refer othelatestrevision of Lycoming Service Table Limits SSP 1776 for torques onparts usedonLycoming engines 6 A maximum of twoAN...

Page 980: ...AS 1021D AN 320D AN 364D NAS1022D Nut bolt size 8 36 10 32 1 4 28 5 16 24 3 8 24 7 16 20 1 2 20 9 16 18 5 8 18 3 4 16 7 8 14 1 14 1 1 8 12 1 1 4 12 TorqueLimits TorqueLimits in lbs in lbs Min Max Min...

Page 981: ...ethreadsonly 6 Ensurelubricantdoesnot enterfittingsorflaredareas 7 Lubricateanyfittingsgoingto enginewithsamefluidgoingthroughlines CHART 8 THREADLUBRICANTS TYPEOF LINE Brakes Hydraulic Deicer Air Fue...

Page 982: ...2 381 2 778 3 175 3 572 3 969 4 366 4 762 5 159 5 556 5 593 3 8 5 8 6 350 6 747 7 144 7 540 7 937 8 334 8 731 9 128 9 525 9 922 10 319 10 716 11 112 11 509 11 906 12 303 12 700 3 4 33 64 17 32 35 64...

Page 983: ...stbe obtainedusinga threadlubricant engineoil or equivalent Runnut orboltdownto nearcontactwiththewasheror bearingsurfaceandcheck frictiondragtorque requiredto turnnutor bolt Addthe frictiondragtorque...

Page 984: ...2ft lbs 60 ft lbs 62 1 2ft lbs 65 ft lbs 346 mkg 691 mkg 1 037mkg 1 383 mkg 1 728mkg 2 074 mkg 2 419 mkg 2 765 mkg 3 111mkg 3 456mkg 3 802 mkg 4 148 mkg 4 493 mkg 4 839 mkg 5 185 mkg 5 530 mkg 5 876...

Page 985: ...9ft lbs 159 12ft lbs CHART 12 CONVERSION TABLES NOTES 1 Usethe followingchartsto convertcapacities lengths temperatures and variousweightsand measures fromEnglish to metric values orviceversa 2 Usethe...

Page 986: ...S METERS MILS MM YARDS M KG BTU KW HR DRAM CU CM CU IN U S GAL LITERS CU IN CU FT U S GAL LIQ LITERS CU IN CU FT LITERS IMPERIAL GAL FLUIDOZ CM FT FT FT LB MULTIPLY KILOGRAMS LITERS METERS METER KILOG...

Page 987: ...10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 94 0 76 0 58 0 40 0 22 0 4 0 14 0 32 0 50 0 68 0 86 0 104 0 122 0 140 0 158 0 176 0 194 0 212 0 230 0 248 0 266 0 284 0...

Page 988: ...3 1 397 1 651 1 905 2 159 2 413 0 152 0 406 0 660 0 914 1 168 1 422 1 676 1 930 2 184 2 438 0 177 0 431 0 685 0 939 1 193 1 447 1 701 1 955 2 209 2 463 0 203 0 457 0 711 0 965 1 219 1 473 1 727 1 981...

Page 989: ...4 1 016 0 9906 0 9652 0 9398 23 64 0 3593 9 1262 T 0 358 9 1281 S 0 346 8 7884 11 32 0 3437 8 7300 R 0 339 8 6106 13 64 0 2031 7 0 201 8 0 199 9 0 196 10 0 1935 5 1594 5 1054 5 0546 4 9784 4 9149 35 0...

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