MD Helicopters 369 Series Manual Download

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CSP−HMI−2

MD Helicopters, Inc

MAINTENANCE MANUAL

Page 12

Revision 39

05−20−00

Form HOE005 (Rev 5/04)

Table 2. Permanent Record of Retirement Index Numbers/Torque Events

Component

Signature

RIN’s

TE’s

Hours

Serial No.

Part No.

Summary of Contents for 369 Series

Page 1: ...R 1 and 2 1 and 2 List of Effective Pages TR 06 001 None A thru J A thru J Bulletins 7 and 8 7 and 8 04 00 00 1 thru 14 1 thru 14 05 20 00 1 and 2 1 and 2 7 thru 12 7 and 12 05 20 10 1 thru 4 1 thru 4 06 00 00 205 and 206 205 and 206 08 10 00 201 and 202 201 and 202 18 10 00 509 and 510 509 and 510 18 20 00 205 and 206 205 and 206 Remove Pages Insert Pages 28 00 60 201 and 202 201 and 202 28 25 00...

Page 2: ...This Page Intentionally Left Blank ...

Page 3: ...9 2007 by MD Helicopters Inc All rights reserved under the copyright laws MDHI MODEL HELICOPTERS MODELS 369D E FF 500 600N Basic Handbook of Maintenance Instructions CSP HMI 2 SERVICING AND MAINTENANCE MD Helicopters Inc 4555 East McDowell Road Mesa Arizona 85215 9734 ...

Page 4: ...se by owners operators and maintainers of MDHI products and authorized parts Use by STC or PMA applicants or holders as documentation to support their certificates is not an authorized use of this manual and is prohibited MDHI takes no responsibility for customer s use of parts manufactured under an STC or PMA when this manual is used as documentation with the Federal Aviation Administration to ju...

Page 5: ...evision 9 93 004 93 005 93 006 94 001 01 21 94 94 002 10 24 94 Revision 11 95 001 Revision 12 95 002 Revision 13 95 003 96 001 96 002 04 24 96 97 001 07 02 97 Revision 18 97 002 08 19 97 98 001 03 25 98 Revision 20 98 002 06 22 98 Revision 21 98 003 08 03 98 98 004 Revision 22 98 005 99 001 02 17 99 01 001 08 10 01 Revision 31 02 001 01 23 02 Revision 32 02 002 01 30 02 REV NO DATE INSERTED BY REM...

Page 6: ...CSP HMI 2 MD Helicopters Inc MAINTENANCE MANUAL Page 2 Revision 39 TR This Page Intentionally Left Blank ...

Page 7: ...8 Revision 23 01 June 1999 Revision 24 07 December 1999 Revision 25 28 April 2000 Revision 26 17 August 2000 Revision 27 09 October 2000 Revision 28 30 November 2000 Revision 29 11 May 2001 Revision 30 11 July 2001 Revision 31 05 November 2001 Revision 32 18 March 2002 Revision 33 24 June 2002 Revision 34 21 August 2003 Revision 35 20 May 2004 Revision 36 11 November 2004 Revision 37 13 December 2...

Page 8: ... 23 211 Revision 36 212 Revision 34 Chapter 07 i ii blank Revision 23 07 00 00 201 thru 206 Revision 23 Chapter 08 i ii blank Revision 23 08 00 00 201 thru 203 204 blank Revision 23 08 10 00 201 Revision 39 202 and 203 Revision 27 204 thru 210 Revision 23 211 Revision 36 212 thru 217 218 blank Revision 23 Chapter 09 i ii blank Revision 23 09 00 00 201 thru 204 Revision 23 Chapter 10 i ii blank Rev...

Page 9: ...204 Revision 23 20 90 00 201 thru 204 Revision 38 Chapter 21 i and ii Revision 23 21 10 00 201 thru 204 Revision 23 21 40 00 201 thru 207 Revision 23 208 Revision 27 209 Revision 37 210 Revision 23 901 thru 911 912 blank Revision 23 Chapter 25 i Revision 24 ii thru vii viii blank Revision 23 25 00 00 1 and 2 Revision 23 25 10 00 201 thru 205 Revision 23 206 Revision 24 207 and 208 Revision 23 25 1...

Page 10: ... 20 201 and 202 Revision 20 203 thru 205 206 blank Revision 19 601 and 602 Revision 20 603 thru 605 606 blank Revision 19 901 and 902 Revision 20 903 Revision 28 904 thru 918 Revision 19 Chapter 32 i Revision 19 ii thru vi Revision 26 32 10 00 1 2 blank Revision 19 301 thru 308 Revision 19 401 and 402 Revision 19 403 and 404 Revision 26 405 Revision 19 406 and 407 408 blank Revision 26 601 Revisio...

Page 11: ... Revision 32 203 and 204 Revision 33 205 and 206 Revision 34 207 Revision 29 208 thru 212 Revision 34 Chapter 62 i thru viii Revision 37 62 00 00 101 Revision 20 102 Revision 31 62 10 00 401 thru 403 404 blank Revision 20 601 thru 607 Revision 20 608 Revision 33 609 Revision 29 610 and 611 Revision 35 612 Revision 20 801 Revision 33 802 thru 808 Revision 20 809 Revision 34 810 and 811 812 blank Re...

Page 12: ...vision 39 410 Revision 32 411 Revision 34 412 thru 414 Revision 32 601 Revision 26 602 Revision 20 603 Revision 26 604 thru 606 Revision 20 801 thru 804 Revision 20 63 15 10 401 thru 403 Revision 20 404 Revision 22 405 thru 409 Revision 20 410 Revision 28 601 thru 603 Revision 20 604 Revision 37 605 606 blank Revision 20 801 and 802 Revision 20 63 15 30 201 Revision 20 202 Revision 36 203 thru 207...

Page 13: ...801 thru 804 Revision 21 805 Revision 24 806 Revision 21 64 30 00 201 Revision 21 202 Revision 36 203 and 204 Revision 21 205 thru 207 Revision 34 208 thru 210 Revision 21 Chapter 67 i thru xii Revision 39 67 00 00 101 Revision 30 102 and 103 Revision 21 104 Revision 29 105 Revision 39 106 thru 111 112 blank Revision 30 67 10 00 1 thru 5 6 blank Revision 21 401 thru 405 Revision 21 406 Revision 37...

Page 14: ...2 Revision 36 513 thru 516 Revision 30 601 Revision 34 602 Revision 35 603 Revision 39 604 and 605 Revision 24 606 Revision 39 801 thru 803 Revision 18 804 and 805 Revision 30 806 Revision 34 Chapter 71 i thru x Revision 36 71 00 00 1 2 blank Revision 22 401 thru 405 Revision 22 406 Revision 30 407 thru 411 Revision 22 412 and 413 414 blank Revision 26 71 00 30 1 2 blank Revision 22 401 thru 404 R...

Page 15: ...on 22 76 10 00 201 thru 214 Revision 22 215 Revision 35 216 Revision 22 217 thru 219 Revision 35 220 and 221 Revision 22 222 and 223 Revision 35 224 Revision 22 76 20 00 201 thru 213 214 blank Revision 22 76 47 00 201 Revision 22 202 and 203 Revision 37 204 Revision 33 205 and 206 Revision 37 207 Revision 22 208 thru 211 Revision 37 212 Revision 36 Chapter 78 i and ii Revision 35 78 20 00 201 thru...

Page 16: ...CSP HMI 2 MD Helicopters Inc MAINTENANCE MANUAL Page J Revision 39 LOEP This Page Intentionally Left Blank ...

Page 17: ... Relief Area Inspection 4 24 00 021 028 Forward and Center Thruster Cables Conduit Cap at Telescopic Swivel End Inspection 11 19 99 200 094 078 022 Landing Gear Strut Inspection and Fairing Modification 4 7 00 029 Motive Flow Restrictor Removal 1 10 01 030R1 Inspection of Vertical Stabilizer and Torque Tube and Replacement of Attaching Hardware 5 25 01 201R2 095R2 079R2 023R2 031R2 Main Rotor Blad...

Page 18: ... Blade Phasing Kit to new 369D29919 501 Configuration 8 2 93 29 3 Periodic Replacement of 369H5655 3 and 5 Oil Cooler Blower Fan Bearings Inspection of Pulley Attach Hardware and Driveshaft Couplings Inspection and Adjustment of Fan Drive Belt Driveshaft Compression Check 8 2 93 32 New Periodic Inspection Intervals Battery Overtemperature Warning System 8 2 93 33 1 Replacement of 369A1602 Tail Rot...

Page 19: ...ram has been FAA approved REVISION DATE FAA SIGNATURE AND DATE Original Issue October 31 1990 Not FAA approved Revision 1 March 29 1991 Not FAA approved this revision Revision 2 May 10 1991 TR 91 001 August 12 1991 Revision 3 September 9 1991 TR 91 002 November 5 1991 Revision 4 January 20 1992 TR 92 004 May 20 1992 Revision 5 August 24 1992 TR 92 005 November 20 1992 Revision 6 December 21 1992 R...

Page 20: ...fected This Revision T R 97 001 and 97 002 Previously Signed Revision 19 December 16 1997 TR 98 001 March 25 1998 Revision 20 June 1 1998 Section 04 00 00 Not Affected This Revision T R 98 001 Previously Signed TR 98 002 June 22 1998 TR 98 003 3 August 1998 Revision 21 24 August 1998 Section 04 00 00 Not Affected This Revision T R 98 002 and 98 003 Previously Signed Revision 22 10 March 1999 Secti...

Page 21: ...2 Revision 33 24 June 2002 TR 03 001 18 June 2003 TR 03 002 25 June 2003 Revision 34 21 August 2003 Section 04 00 00 Not Affected This Revision T R 03 001 and 03 002 Previously Signed TR 03 003 30 September 2003 TR 03 004 17 December 2003 Revision 35 20 May 2004 Section 04 00 00 Not Affected This Revision T R 03 003 and 03 004 Previously Signed TR 04 001 28 May 2004 Revision 36 11 November 2004 Re...

Page 22: ...CSP HMI 2 MD Helicopters Inc MAINTENANCE MANUAL Page 4 Revision 39 04 00 00 FAA APPROVED REVISION DATE FAA SIGNATURE AND DATE TR 06 001 05 July 2006 ...

Page 23: ... be of unlimited life have a life of not less than 20 000 hours 3 When a life limited part or an assem bly that incorporates a life limited part is installed on a new or used helicopter the nomenclature part number serial number component time and current helicopter hours are recorded in the Log Book and component log for the helicopter Whether the life limited part is new or used the remaining nu...

Page 24: ...on the car go hook external hoist or in external bas kets For external lift operators an external load is recorded as two 2 TE s pick up and drop off Hover taxi with no external load will typically result in no TEs 6 External Lift and Torque Event TE Requirements The 369D E F FF 500 600N helicopters are multi use helicopters If the helicopter is used primarily for external lifts or training flight...

Page 25: ...2 517 2500 31 25 22 369D21102 517 3430 37 100 20 369D21102 523 4000 37 100 20 369D21121 501 3430 37 100 20 369D21121 503 3430 37 100 20 500N 6 369D21102 503 3430 37 100 20 369D21102 517 2500 31 25 22 369D21102 517 3430 37 100 20 369D21102 523 4000 37 100 20 369D21121 501 3430 37 100 20 369D21121 503 3430 37 100 20 600N 6 369D21102 517 21 1900 32 37 100 20 369D21102 523 3200 33 37 100 20 369D21121 ...

Page 26: ...62 25 23 369H1203 21 39 5762 25 23 369H1203 31 39 5762 25 11 369H1203 51 39 11080 369H1203 53 40 11080 369H1203 61 39 11080 369F FF 369H1203 21 39 5762 25 23 369H1203 31 39 5762 25 11 369H1203 51 39 11080 369H1203 53 40 11080 369H1203 61 39 11080 500N 369H1203 51 39 11080 369H1203 53 40 11080 369H1203 61 39 11080 600N 369H1203 51 39 11080 369H1203 53 40 11080 Lead lag damper main rotor 369D 369D21...

Page 27: ...F5456 3 300 17 Drive shaft fan 500N 500N5200 2620 600N 500N5200 1200 36 Drive shaft tail rotor 369D E 369D25518 13900 369F FF 369DSK152 11 13900 369D25518 503 14610 Coupling tail rotor drive shaft Bendix NOTE Not certified on 369FF Model 9 369D E F 369A5501 4980 369H92564 7 4980 Anti Torque System Gearshaft assembly tail rotor input 369D E 369D25434 12000 369F FF 369D25434 3365 Gearshaft tail roto...

Page 28: ...N5352 7 7500 500N5352 9 7500 600N 500N5352 9 7500 Shaft NOTAR fan support 600N 500N5357 13 4000 Pitch plate assembly 500 600N 500N5363 7 7500 Tube assembly fan pitch 500N 500N7113 3 600 18 Rotating cone assembly 500N 500N3740 1 10000 500N3740 41 10000 600N 500N3740 61 10000 Tailboom Bolts tailboom attach 369D E F FF MS21250 06014 21950 Tailboom assembly 369D E 369D23500 10300 369F FF 369D23500 507...

Page 29: ...ly longitudinal pitch mixer 369D E F FF 369A7603 13600 500N 369A7603 6050 Longitudinal control rod 500N 369A7011 13 7740 369A7011 15 7740 Socket cyclic stick 600N 369A7141 1000 8 27 Cyclic tube assembly 600N 369D27132 503 1200 8 27 Housing collective stick 600N 369A7347 450 Tube collective pitch control 600N 369A7348 400 Tube assembly collective pitch pilot 600N 369H7354 3 600 Socket cyclic stick ...

Page 30: ...ith cargo hook attached and with separate log 1800 hours of external load operating time when logged separately For 369D E F FF helicopters with 369A5364 or 369D25351 sprag assembly Refer to AD 90 19 02 4 Inspect in accordance with Main Rotor Strap Pack Lamination Inspection at 100 hour intervals or 25 hour intervals if 2 laminates 369D E F FF 500N or 1 laminate 600N have failed in any one leg or ...

Page 31: ...fficient to retire assembly 369D E FF 500N Ref Sec 62 20 00 Main Rotor Damper and Attachments Inspection 600N Ref Sec 62 20 60 Main Rotor Damper and Attachments Inspection 17 For helicopters equipped with a cargo hook inspect overrunning clutch sprag assembly P N 369F5456 clutch inner race P N 369F5455 and outer race 369F5453 every 300 hours To establish time in service either clutch total time wi...

Page 32: ...H664 H665 H667 H669 H671 H672 H674 H676 H679 H680 H683 thru H724 H726 thru H999 and J000 thru J039 J041 thru J055 and P N 369D21102 517 with S N 1976 thru 2100 2106 thru 2115 TORQUE EVENT TE A TE is recorded for every transition from forward flight to a hover Reference Service Bulletins SB369D 195R3 SB369E 088R3 SB369F 075R3 SB500N 015R3 32 RIN 200 x Hrs 52 x TE 33 RIN 160 x Hrs 24 x TE 34 RIN 153...

Page 33: ...t Chap Sect Initial GENERAL ALL Thoroughly clean helicopter and engine prior to start of inspection 20 ALL Remove trim panels covers and access panels as necessary 52 50 00 ALL Ensure all placards and markings are installed 11 00 00 ALL Ensure compliance with component mandatory retirement schedule 04 00 00 ALL Calculate and record TE s or RIN s of all affected components in Table 2 04 00 00 ALL E...

Page 34: ...nd front of canopy for easy of operation and security Fuel cell vent fairings free of obstructions and obvious damage Pilot s and passenger cargo compartment doors for condition of door glass vents and proper operation of latching and locking mechanisms Door hinges and pins for play or wear Ensure door pin locking tab is engaged with slot in frame No evidence of oil leakage around fuselage drain h...

Page 35: ... for dents and obvious damage Free movement of control rod thru interconnect drive shaft 63 369D E Bendix couplings only Check tail rotor blade tip movement in excess of 0 75 inch without main rotor blade movement when tail rotor blades are rocked back and forth in plane of rotation 63 369D E FF Tail rotor drive shaft for Evidence of buckling dents bulkhead chafing and obvious damage Align aft cou...

Page 36: ...aps Rivets securing tip cap for installation and condition Abrasion strips free of damage no excessive erosion noted and no separation in bond around edges or at tip end of blade Ref Tail Rotor Blade Inspection While holding hub stationary check tail rotor blade pitch bearings for lead lag play in excess of 0 250 inch 6 35 mm at blade tip If excess play is found remove blades replace pitch bearing...

Page 37: ...eostat knob verify CAUTION lights dim 95 369D E FF 500N Conduct operational check of automatic reignition system igniter noise heard and reignition indicator light functions Reset as required PFM CAUTION Do not leave landing light ON for more that one minute during next check lamp will overheat and lamp life will be shortened ALL Exterior lighting landing position and anti collision lights for pro...

Page 38: ...and obvious damage Accessible areas for obvious damage evidence of fuel and oil leaks Engine mounts for cracks and play in mounting hardware at engine and airframe retorque any loose mounting bolts Fuel control and compressor exterior for condition and security 71 75 76 369D E FF 500N RPM governor lever control rod replace if aluminum 76 10 00 369D E FF 500N Clean and lubricate drive splines of st...

Page 39: ...licopter has been thoroughly inspected as required by FAR found to be airworthy and appropriate entries made in the helicopter log book It is further certified that the helicopter conforms to FAA specifications that all FAA Airworthiness Directives and Manufacturer s Service Notices and Maintenance Manual data have been complied with and the helicopter records are in proper order Signature Rating ...

Page 40: ... MD Helicopters Inc MAINTENANCE MANUAL Page 12 Revision 39 05 20 00 Form HOE005 Rev 5 04 Table 2 Permanent Record of Retirement Index Numbers Torque Events Component Signature RIN s TE s Hours Serial No Part No ...

Page 41: ...cap 500N and inspect Cone rollers for condition and security Four fasteners that attach 500N3760 1 upper input shaft to the stationary thruster for play replace pins and collars if any play is found Three fasteners that attach 500N3759 support shaft assembly for play if play is found in top bolt retorque to 10 15 inch pounds 1 13 1 69 Nm Replace pins and collars if any play is found in bottom fast...

Page 42: ...erform Tunnel Routed Control Rod Inspection 67 10 00 ALL Check oil tank for security and evidence of leakage and damage 79 MAIN ROTOR ALL Perform Swashplate Inspection 62 ALL Perform Lead Lag Bolt Inspection 62 ALL Perform Main Rotor Hub Droop Angle Check 62 ALL Perform Main Rotor Blade Inspection 62 ALL Inspect main rotor mast mast base and mast base support structure for evidence of cracks Check...

Page 43: ...em area Ref Tail Rotor Blade Stop Inspection 64 30 00 NOTARR Anti Torque System 500 600N Check balance weights for security If any balance weight stud is found to be loose perform Fan Balance Stud Replacement 64 500 600N Remove inspect and clean fan transmission chip detector 63 500 600N Remove tailboom Perform visual inspection of fan assembly for Cracks nicks or corrosion Blades for cracks nicks...

Page 44: ...RTMENT ALL Inspect starter generator for Condition of brushes electrical connections and commutator Screens for clogging Condition of O ring on drive spline Damper backplate and clutch for condition 96 ALL Perform Fuel Filter Bypass Caution Light Pressure Switch Test 28 00 00 28 00 60 NOTE Also perform this operational check whenever low pressure fuel pump filter element is replaced for any reason...

Page 45: ...L FUEL TYPICAL ATTITUDE OF CARGO DECK 4 7 DEGREES NOSE UP 2 IF EXTENDED LANDING GEAR IS INSTALLED ADD 0 87 FT 0 27 M TO ALL VERTICAL DIMENSIONS 8 8 FT 2 7 M 7 7 FT 2 3 M 27 35 FT 8 34 M 6 3 FT 1 9 M 4 6 FT 1 4 M 6 5 FT 2 0 M 31 39 FT 9 6 M 24 9 FT 7 6 M 6 9 FT 2 1 M 1 4 FT 0 4 M 7 7 FT 2 3 M Figure 204 Principal Dimensions Model 500N ...

Page 46: ... 0 7 M 4 6 FT 1 4 M 8 8 FT 2 7 M 6 6 FT 2 0 M 27 5 FT 8 4 M DIA GENERAL NOTES 1 HELICOPTER ON GROUND WITH FULL FUEL TYPICAL ATTITUDE OF CARGO DECK 5 3 DEGREES NOSE UP 2 HEIGHT ABOVE GROUND DIMENSIONS VARY WITH INSTALLED EQUIPMENT CENTER OF GRAVITY AND TERRAIN FEATURES 3 ALL DIMENSIONS SHOWN DEPICT EXTENDED LANDING GEAR Figure 205 Principal Dimensions Model 600N Sheet 1 of 2 ...

Page 47: ...ngitu dinal centerline of the helicopter The vertical reference datum is located at a point 83 inches 210 8 cm below the center of the main rotor blades 5 Refer to the following for balance diagrams Figure 201 for Model 369D Figure 202 for Model 369E Figure 203 for Model 369FF Figure 204 for Model 500N Figure 205 for Model 600N NOTE Weight and balance information for op tional equipment is found i...

Page 48: ...g the helicopter The preferred method is by using elec tronic weighing equipment If equipment for electronic weighing is unavailable the second approved method mechanical scales may be used D 600N There is one method approved for weighing the helicopter The method is by using electronic weighing equipment A Helicopter Weighing Preparation The following items are required and should be readily avai...

Page 49: ...RAMS 60 GRAMS 60 GRAMS 60 GRAMS 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 1 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 1 0 1 0 BLUE 4 BLUE 4 GRN 2 GRN 2 YEL 3 RED 1 RED 1 YEL 3 TGT WHITE 5 TGT WHITE 5 HELICOPTER S N HUB S N G18 1003A RUN NO IPS CLOCK ANGLE BALANCE WEIGHT AND LOCATION 1 RED 2 GREEN 3 YELLOW 4 BLUE 5 WHITE Figure 503 Main Rotor Hub Balancing Chart ...

Page 50: ...WASHERS AS REQUIRED TO BALANCE NOTE 5 HS1555 WASHER 369A1220 LEAD LAG BOLT HS1554 WASHER 369A1219 NUT AND MS24665 300 COTTER PIN NOTE 4 NAS603 56 OR 64 SCREW A A SERIAL NO 003D THRU 0259D A A SERIAL NO 0260D AND SUBS NOTES 1 COAT SCREW THREADS NUTS AND WASHERS WITH PR 1436 G CLASS B 2 SEALANT 2 TORQUE MS21042L08 NUT TO 20 35 INCH POUNDS 2 26 3 95 NM 3 TORQUE MS21042L3 NUT TO 30 60 INCH POUNDS 3 39...

Page 51: ...16 0 4064 0 29 369A1622 5 0 036 0 9144 1 76 NOTES 1 Used on balance bolt 2 Maximum of 23 washers is permitted on each balance bolt 3 Minimum of two threads must extend past nut securing balance washers on balance bolt 4 Maximum weight including screws is 34 grams 5 Minimum screw thread engagement is 5 16 inch 7 9375 mm G18 2001 TOTAL WEIGHT VECTOR WEIGHT EQUAL WEIGHT TOTAL WEIGHT VECTOR TOTAL WEIG...

Page 52: ...SIDE TO THE OPPOSITE SIDE AS SHOWN AND RE CHECK BALANCE STARTING FROM ZERO WASHERS 2 REMOVE 0 010 IN 0 254 MM THICK SHIM FROM PITCH ARM SIDES AND TRANSFER THE SHIM TO THE OPPOSITE SIDE G18 2002A Figure 203 Long Method Tail Rotor Balancing Inboard Blade BALANCE WASHERS MAX 23 SHIMS NOTE 2 SHIM G18 2003A NOTES 1 REMOVE 0 010 IN 0 254 MM THICK SHIM FROM WEIGHTED PITCH ARM SIDE AND TRANSFER THE SHIM T...

Page 53: ...an cell with warm soapy water Wipe completely dry 2 If a fuel cell that has previously contained fuel is to be stored for longer than three days coat inside of cell with a light coating of 10 weight non syn thetic engine oil D Engineered Fabrics Corp cells removed from service must not be left dry for more than 3 days without the application of oil as a plasticizing agent The cell liner will loose...

Page 54: ...nstall primer bulb assembly in line between HMU GEAR INLET and the CEFA e Open fuel shutoff valve f Open throttle to ground idle position g Squeeze primer bulb until fuel comes out of fuel line NOTE When reinstalling fuel lines refer to ap propriate Rolls Royce Operation and Main tenance Manual for proper torques h Remove primer bulb assembly from fuel line and reconnect fuel line to HMU i Crank e...

Page 55: ...act closure directs 28Vdc current across the S2 contacts of the FUEL FILTER relay K254 to activate the RT170 277 time delay relay TDR The TDR energizes relay K254 after a two to five second delay closing switches S1 S2 and S3 energizing the FUEL FILTER caution light start pump and START PUMP ON light 3 On 369H90022 503 505 and 600N98110 501 fuel filter installations pressure switch closure only ad...

Page 56: ... ground test 10 On all installations a filter bowl drain valve plumbed into the drain manifold provides for filter draining and fuel sampling Air in the fuel system will cause a power reduction or flameout Do a fuel system vacuum leak check and system air bleed after open ing fuel system to atmosphere and prior to releasing helicopter for flight Ensure start boost pump is operating before taking f...

Page 57: ...Windows Removal 201 B Aft Section Windows Installation 201 4 Windshield Frame Replacement 201 A New Style Windshield Installation 201 5 Windshield Inspection 201 6 Windshield Repair 201 7 Water Leak Prevention 202 8 Geon Strips Repair 202 Table 201 Negligible Damage of Canopy Windshield 202 Figure 201 Round Nose Windshields and Aft Section Windows 203 Figure 202 Extended Nose Windshield and Aft Se...

Page 58: ...spection 206 A Upper Aft Section General Repair 206 B Aft Fuselage Fittings 206 C Aft Fuselage Fittings General Repair 206 7 Aft Section Strut Repair 206 8 Silver Brazing Procedure Upper Firewall Shell Patch 206 Figure 203 Major Bulkheads and Structural Members Aft Fuselage 207 9 Plenum Chamber Hole Sealing 208 10 Forward Fuselage Section Structure Rework 208 11 Transmission Compartment Air Baffle...

Page 59: ...e Plenum Access Cover Replacement 205 A Engine Plenum Access Cover Removal 205 B Engine Plenum Access Cover Installation 205 9 Tailboom Attach Fitting Inspection 205 Figure 203 Tailboom Attach Fitting Inspection 206 10 Lower Longeron Inspection L158 R158 207 11 Forward Upper Longeron Inspection L137 R137 207 Figure 204 Inspection Hole Locations 208 12 Control Tunnel FS 78 50 Beam Inspection 209 Fi...

Page 60: ...ruster Cone Replacement 208 A Stationary Thruster Cone Removal 208 B Stationary Thruster Cone Installation 208 10 Stationary Thruster Cone Inspection 208 11 Conduit and Support Strap Rebonding 208 Figure 203 Conduit and Support Strap Rebonding 209 12 Horizontal Stabilizer Mount Fitting Replacement 210 13 500N3500 5 Cover Installation 211 Figure 204 500N3500 5 Cover Installation 212 14 Tail Skid Re...

Page 61: ...abilizer 0003D 0286D 207 53 50 30 Stabilizer 500 600N A Maintenance Practices 201 1 Stabilizers Description 201 A Horizontal Stabilizer Description 201 B Vertical Stabilizers Description 201 2 Vertical Stabilizer Replacement 201 A Vertical Upper and Lower Stabilizer Removal 201 B Vertical Upper and Lower Stabilizer Installation 201 3 Horizontal Stabilizer Replacement 202 A Horizontal Stabilizer Re...

Page 62: ... Stabilizer Installation with Expandable Bolts 207 10 Horizontal Stabilizer Repair 208 11 Vertical Stabilizer Torque Tube and or Bushing Replacement Non Bonded Bushings 208 12 Vertical Stabilizer Torque Tube and or Bushing Replacement Bonded Bushings 208 13 Vertical Stabilizer Torque Tube Bushing Rework Non Bonded Bushings to Bonded Bushings 209 14 Vertical Stabilizer Torque Tube Bearing Race Repl...

Page 63: ... smaller diameter bolts to 130 150 inch pounds 14 68 16 94 Nm plus drag torque and the two larger diameter bolts to 180 220 inch pounds 20 33 24 85 Nm plus drag torque Safety bolts RN003 RN059 with TB600N 007 complied with and RN060 subs torque bolts to 180 220 inch pounds 20 33 24 85 Nm plus drag torque Safety bolts 5 Check for a minimum of two threads protruding from nutplates 6 Using a 0 002 in...

Page 64: ...E If crack in forward edge of flap is longer than 1 25 inch 3 175 cm contact your local MDHI Field Service Representative for dis position g Inspect horizontal stabilizer mount ing brackets pay particular attention to the forward inboard legs and attachment fittings for cracks voids separation and delamination h Inspect stabilizers Ref Sec 53 50 30 i Inspect tail skid for cracks dents holes and de...

Page 65: ...0 0 080 inch 0 508 2 032 mm between stator and fan 6 Stator Blade Replacement Ref Figure 201 View E 1 Stator Blade Removal Remove two self locking screws and two surface washers 2 Stator Blade Installation Install two surface washers and two self locking screws Torque screws to 3 6 inch pounds 0 34 0 68 Nm plus drag torque Total torque should not exceed 15 inch pounds 1069 Nm total torque 7 Rotati...

Page 66: ...er cone support in place install eight bolts and washers Torque bolts 30 40 inch pounds 3 39 4 52 Nm plus drag torque 3 Connect control rod to input sector bellcrank clevis and install bushing washer and bolt torque bolt per standard aircraft torque values and safety wire 4 Install thruster cone fairings 5 Install rotating thruster Ref Rotating Thruster Cone Installation 10 Stationary Thruster Con...

Page 67: ...ours of preparation If more than 2 hours elapse before adhesive application re pre pare surfaces 5 Mix adhesive CM402 according to manufacturer s instructions and apply to faying surfaces 6 Secure parts together with light pressure and allow to cure for 24 hours at ambient temperature G53 4004A APPLY ADHESIVE HERE APPLY ADHESIVE HERE APPLY ADHESIVE HERE APPLY ADHESIVE HERE SUPPORT TAILBOOM CONDUIT...

Page 68: ...ting 7 Clean area with 1 1 1 Trichloroethane CM222 8 Locate new fitting on tailboom 9 Back drill fittings to 0 186 0 188 inch 4 724 4 775 mm 10 Remove fitting and deburr rivet holes 11 Touch up rivet holes with solid film lubricant CM101 for steel fittings or chemical coating CM206 for alumi num fittings 12 Steel fittings only a Using abrasive paper CM801 lightly abrade tailboom where fitting is t...

Page 69: ... holes do not line up with electrical connectors remove cover role 180 and reposition in tailboom NOTE Tailboom is manufactured with 1 0 x 1 0 inch 25 4 x 25 4 mm spots marked for abrasion a If tailboom is not previously marked place a mark every 2 0 inches 50 8 mm around cover and tailboom b Do not bond the bottom 8 0 inches 203 2 mm on aft end of cover 4 Abrade around the cover mating surface wi...

Page 70: ...tail skid brace 2 Retain shims between base and brace if same tail skid is to be reinstalled 3 Slide tail skid from forward bracket assembly B Tail Skid Installation 1 Slide tail skid into forward bracket assembly 2 Install aft brace onto aft base 3 If reinstalling the same tail skid a Insert removed shims and install two bolts and washers b Torque bolts to 36 40 Inch pounds 3 95 4 52 Nm plus drag...

Page 71: ...CSP HMI 2 MD Helicopters Inc MAINTENANCE MANUAL 53 40 30 Page 213 Revision 39 G53 4006 TAIL SKID AFT BASE AFT BRACE FORWARD BRACKET ASSEMBLY SHIM BOLT WASHER Figure 205 Tail Skid Installation ...

Page 72: ...CSP HMI 2 MD Helicopters Inc MAINTENANCE MANUAL Page 214 Revision 39 53 40 30 This Page Intentionally Left Blank ...

Page 73: ...ly as follows a Remove output coupling bolt and coupling b Shim coupling to achieve 0 035 0 055 inch 0 889 1 397 mm step above clutch output shaft When installing clutch coupling bolt installation torque on the bolt must be 250 300 inch pounds 28 25 33 90 Nm for the 369A5350 clutch or 315 365 inch pounds 35 59 41 24 Nm for the 369F5450 clutch Torquing to lower val ue reduces clutch bearing clamp u...

Page 74: ... engine Ref Sec 01 00 00 Allison Engine Operation and Maintenance Manual b Install O rings on 369F5469 C30 C47 engine or 369F5468 C20 series engines bolt Ref Figure 404 NOTE Fill all voids and gaps between the out side of bolt and inside of engine shaft with grease c Lubricate internal spline area of engine output shaft with grease CM111 d Lubricate bolt threads with anti seize compound CM112 and ...

Page 75: ... Over Center Trim System Removal 903 G Four Bladed Over Center Trim System Initial Installation 903 Figure 902 Over Center Trim System Installation 904 H Four Bladed Tail Rotor Controls Rigging 906 I Horizontal Stabilizer Tip Weight Removal 906 J N2 and NR Rotor Tachometer Indicator Replacement 906 K Four Bladed Tail Rotor System Completion of Installation 906 L Weight and Balance 907 Table 901 We...

Page 76: ...l Rotor Hub and Fork Installation 203 Figure 202 Hub and Fork Assembly Installation Two Bladed 204 Figure 203 Hub and Fork Assembly Installation Four Bladed 205 3 Tail Rotor Hub and Fork Inspection 206 4 Conical Bearing Inspection 206 5 Elastomeric Fork Bearing Inspection 206 Figure 204 Blade Flapping Resistance Check 207 6 Elastomeric Bearing Care and Cleaning 207 64 25 30 Anti Torque Fan 500 600...

Page 77: ...nti Torque Fan Liner Felt Metal Seal Replacement 801 A Anti Torque Fan Liner Felt Metal Seal Removal 801 B Anti Torque Fan Liner Felt Metal Seal Installation 801 2 Anti Torque Fan Liner Felt Metal Seal Machining Instructions 801 A Bench Calibration 801 Figure 801 Anti Torque Fan Liner Felt Metal Seal 802 Figure 802 Anti Torque Fan Liner Felt Metal Seal Cutting Tool Installation 803 B Installation ...

Page 78: ...l Assembly Repair 205 5 Tail Rotor Pitch Control Assembly Inspection 205 6 Tail Rotor Blade Stop Inspection 206 7 Tail Rotor Pitch Control Link Inspection 206 8 Tail Rotor Conical Bearing Inspection 207 9 Tail Rotor Pitch Bearing Inspection 207 10 Tail Rotor Swashplate Bearing Regreasing 207 Figure 205 Tail Rotor Swashplate Bearing Regreasing 207 Figure 206 Tail Rotor Swashplate Bearing Regreasing...

Page 79: ...Shaft Inspection Inspect the support shaft and its associated components as follows NOTE Ensure proper pitch plate and or sup port shaft bearings are installed 900R bear ings are not to be used in the 500 600N heli copters 1 Support shaft for a Cracks none allowed b Wear c Scoring axial marks from bearing installation or removal d Damaged spines none allowed e Corrosion and pitting 2 Fan support b...

Page 80: ...nch 3 81 cm long may be blended out Total length of all repairs not to exceed 2 0 inch 5 08 cm 2 Any bulges or blisters over 0 10 inch 2 54 mm long in area of pin near outboard end of blade are reason for blade rejection 3 Seal cracks up to 0 10 inch 2 54 mm coming from area of pin with sealing compound CM437 4 If any cracks larger than 0 10 inch 2 54 mm are found replace blade 5 Fan Pitch Slider ...

Page 81: ...67 10 00 Main Rotor Flight Controls 369D E FF 500 600N A Description and Operation 1 1 Main Rotor Flight Controls 1 A Collective Mixer Lateral and Longitudinal Mixer Tunnel Routed Control Rods 1 B Controls Support Bracket and Bellcranks 1 C Collective Controls 1 D Pilot s Collective Pitch Stick 1 E Copilot s Collective Pitch Stick 1 F Collective Pitch Stick Friction 1 G Collective Control Intercon...

Page 82: ...t and Bellcrank Installation 406 6 Pilot s Collective Pitch Stick Replacement L H Command 406 A Pilot s Collective Pitch Stick Removal L H Command 406 Figure 404 Dual Collective Controls L H Command 407 B Pilot s Collective Pitch Stick Installation L H Command 408 7 Pilot s Collective Pitch Stick Replacement R H Command 408 A Pilot s Collective Pitch Stick Removal R H Command 408 B Pilot s Collect...

Page 83: ...tallation Outboard 417 Figure 410 Cyclic Stick Assembly Installation Outboard 418 15 Lateral Control Rods and Sta 67 Lateral Cyclic Bellcrank Replacement L H Command 418 A Lateral Control Rods and Sta 67 Lateral Cyclic Bellcrank Removal L H Command 418 B Lateral Control Rods and Sta 67 Lateral Cyclic Bellcrank Installation L H Command 418 Figure 411 Cyclic Controls R H Command 419 16 Lateral Contr...

Page 84: ...H Command 369D E FF 500N 510 7 Cyclic Controls Rigging R H Command 369D E FF 500N 513 8 Cyclic Controls Rigging L H Command 600N 513 9 Cyclic Controls Rigging R H Command 600N 515 10 Gas Producer Linkage Adjustment 515 Figure 504 Gas Producer Drive Backlash Adjustment Outboard Collective Stick 516 Figure 505 Gas Producer Drive Backlash Adjustment Inboard Collective Stick 517 11 Pipe Plug Adjustmen...

Page 85: ...n 607 13 Cyclic Control System Operational Check 607 Figure 604 Cyclic Stick and Friction Inspection 608 14 Main Rotor Flight Control System 600 Hour Inspection 609 Repairs 801 1 Tunnel Routed Control Rod Repair 801 2 Tunnel Routed Control Tube Inspection and Sleeve Installation 801 A Control Tube End Sleeve Installation 801 Figure 801 Sleeve Fabrication and Installation 802 Table 801 Control Tube...

Page 86: ...im Tube Replacement 815 27 Cyclic Trim Actuator Motor Gear Drive Mechanism Replacement 815 28 Cyclic Trim Actuator Rework Calco P N 8222M6 and 8222M7 815 67 10 20 Collective and Cyclic Stick Grips 369D E FF 500 600N A Maintenance Practices 201 1 Collective Pitch Stick Switches 201 2 Collective Pitch Stick Switches Replacement 201 3 Cyclic Stick Grip Switches 201 4 Cyclic Control Stick Grip Replace...

Page 87: ...Rotor Pedal Installation Sheet 1 of 2 404 B Sta 95 Bellcrank and Support Installation 405 C Tail Rotor Pedal Assembly General 405 D Co Pilot s Pedal Installation 406 5 Tail Rotor Pedal Assembly Replacement 406 A Tail Rotor Pedal Assembly Removal 406 B Tail Rotor Pedal Assembly Installation 406 6 Dual Tail Rotor Pedal Initial Installation 407 Adjustment Test 501 1 Tail Rotor Controls Rigging 501 Fi...

Page 88: ...0N Bellcrank and Support Bracket Replacement 401 A Sta 97 50 500N or Sta 95 600N Bellcrank and Support Bracket Removal 401 B Sta 97 50 500N or Sta 95 600N Bellcrank and Support Bracket Installation 401 3 Forward Directional Control Tube Replacement 401 A Forward Directional Control Tube Removal 401 B Forward Directional Control Tube Installation 401 4 Splitter Bungee Spring Replacement 500N 401 A ...

Page 89: ...Sector Assembly and Control Cable Installation 411 13 Drum Assembly and Idler Pulley Replacement 411 A Drum Assembly and Idler Pulley Removal 411 B Drum Assembly and Idler Pulley Installation 500N 412 C Drum Assembly and Idler Pulley Installation 600N 412 14 Anti Torque Pedal Friction Replacement 412 A Anti Torque Pedal Friction Removal 412 B Anti Torque Pedal Friction Installation 412 15 Anti Tor...

Page 90: ...Manufacturing 600N without YSAS 514 A Trim Tab Tool Manufacturing 514 B Trim Tab Adjustment 514 Figure 507 Vertical Stabilizer Trim Tab Bending Tool 515 Table 501 Flight Controls Troubleshooting 516 Inspection Check 601 1 Upper Fuselage and Tailboom Control Linkage Inspection 601 2 Anti Torque Pedal Assembly Inspection 601 3 Sta 97 50 500N or Sta 95 600N Bellcrank and Support Bracket Inspection 60...

Page 91: ...1 6 Sta 137 50 Support Bracket and Bellcrank Repair 802 7 Fan Pitch Control Tube Repair 802 8 Forward Cable Assembly Repair 802 9 Center Cable Assembly Repair 802 10 Aft Control Rod Repair 802 11 Thruster Sector Assembly Repair 802 12 Drum Assembly and Idler Pulleys Repair 802 13 Anti Torque Pedal Disassembly 802 14 Anti Torque Pedal Repair 803 15 Anti Torque Pedal Reassembly 803 Figure 801 YSAS A...

Page 92: ...CSP HMI 2 MD Helicopters Inc MAINTENANCE MANUAL Page xii Revision 39 67 Contents TABLE OF CONTENTS Cont Para Figure Table Title Page This Page Intentionally Left Blank ...

Page 93: ...VDC PWR K PWR END L ACTUATOR ENABLE S COMMAND SIG L A COMMAND SIG H B POSITION FEEDBACK H P POSITION FEEDBACK L C 15VDC D SIGNAL COMMON E 15VDC F CHASSIS GND SAS2C20 SAS9C20 SAS3C22 SAS4C22 WHT SAS4C22 BLU SAS5C22 WHT SAS5C22 BLU SAS6C22 WHT SAS6C22 BLU SAS6C22 ORN SAS10C22 J K L S A N B P R C D E G F SAS2B20 SAS9B20 SAS3B22 SAS4B22 WHT SAS4B22 BLU SAS5B22 WHT SAS5B22 BLU SAS5B22 SAS6B22 WHT SAS6B...

Page 94: ... CB121 S12 3 2 SAS16A22N E31 J J1202P SAS10A22N L J K S A N B P R C D E G F SAS ELECT CONTROL COMPUTER SAS3B22 SAS2B20 SAS9B20 SAS4B22 WHT SAS4B22 BLU SAS5B22 WHT SAS5B22 BLU SAS6B22 WHT SAS6B22 BLU SAS6B22 ORN SAS10B22 J513P J514P TAILBOOM DISCONNECT RING FRAME DISCONNECT SAS3C22 SAS2C20 SAS9C20 SAS4C22 WHT SAS4C22 BLU SAS5C22 WHT SAS5C22 BLU SAS6C22 WHT SAS6C22 BLU SAS6C22 ORN SAS10C22 L J K S A...

Page 95: ...ps 2 and 3 below to remove stick without removing stick socket 2 Remove cotter pin nut washers and bolt securing copilot s lateral control rod to stick socket 3 Remove cotter pin nut washers and bolt attaching stick socket to end of cyclic torque tube Remove stick tube with stick socket attached 4 Remove two quick release pins attach ing stick tube to stick socket 5 Remove stick tube from socket B...

Page 96: ...nk Removal L H Command 1 Remove large central cyclic stick guard 2 Remove pilot s seat cover and controls access door from Sta 78 50 canted bulkhead 3 Remove pilot s lateral control rod or Sta 70 lateral control rod as applica ble 4 Remove Sta 67 lateral cyclic bellcrank from seat structure fitting 5 If rod or rod ends require replacement accurately measure and record distance between rod end bear...

Page 97: ...mation and loose rivets NOTE Pitch stick housing and cap may be ei ther magnesium or alloy casting For corro sion control and identification of magne sium or aluminum alloys Ref Sec 20 40 00 4 Copilot s Collective Pitch Stick Inspection Ref Figure 603 1 Inspect bearings for binding or play 2 Inspect all gears for cracks and chipped or broken teeth 3 Inspect stick tube and gas producer control tube...

Page 98: ...ING NYLON STRAP GUARD NYLON STRAP GEAR NOTE 1 CAM NOTE 1 STICK TUBE WIRE GUIDE NOTE 1 SETSCREW SPACER NOTE 1 FRICTION DRIVE GEAR NOTE 4 GUIDE RETAINER FRICTION ADJUSTMENT TEFLON WASHER PHENOLIC WASHERS NOTE 2 BEARING NOTE 3 BACKLASH SHIM GEARSHAFT BACKLASH SHIM BEARING NOTE 3 CAP G67 1021B NOTES 1 SURFACES IN CONTACT DURING ROTATION OR OTHERWISE NOTED TO BE LUBRICATED WITH GREASE 2 NEW PHENOLIC WA...

Page 99: ...SHIM ELECTRICAL WIRING BEARING NOTE 2 STICK TUBE CONNECTOR CAP NOTE 1 SETSCREW PIN WIRE GUIDE SETSCREW ADJUSTMENT NUT THROTTLE GRIP GRIP ATTACH BOLT SETSCREW SWITCH HOUSING NOTES 1 SURFACES IN CONTACT DURING ROTATION TO BE LUBRICATED OR OTHERWISE NOTED WITH GREASE CM116 2 INSTALL BEARINGS WITH GRADE A LOCKING COMPOUND CM431 AFTER SHIMMING FOR MOUNTING DISTANCE AND BACKLASH 44 162B Figure 603 Outbo...

Page 100: ... an aluminum or magnesium casting For corrosion control and identification of mag nesium and aluminum alloys Ref Sec 20 40 00 8 Inboard Collective Stick Socket Assembly Inspection Ref Figure 408 1 Inspect all bearings for binding or play 2 Inspect gears for cracks and chipped or broken teeth 3 Inspect all components for cracks corrosion and deformation NOTE Bellcrank and idler may be either an alu...

Page 101: ...e way lock if aft output end bearing binds 4 Replace protective boot if it is cracked torn or deteriorated 5 Replace one way lock if exposed portion of piston has nicks scratches or wear penetrates chrome plating 6 Replace external mounting bushing if outside diameter is less than 0 4979 inch 12 64666 mm 7 One way lock must be replaced if nicks dents and scratches to body exceed 0 040 inch 1 016 m...

Page 102: ... ALLOWABLE AXIAL PLAY 0 040 IN 1 016 MM CONTROL ROD PILOT S LATERAL STA 70 LATERAL DIM L INCH CM 12 63 32 0802 6 65 16 891 ANGLE A 42 90 NOTES 1 EDGE OF BUSHING MUST PROTRUDE A MINIMUM OF 0 010 IN 0 254 MM TO A MAXIMUM OF 0 060 IN 1 524 MM ABOVE OUTSIDE SURFACE OF PART AFTER BOLT IS TIGHTENED 2 WASHERS ARRANGED TO ALIGN LINK WITH TORQUE TUBE LOOSELY SPACED WITH THREE WASHERS 3 CAP NUT ADJUSTED TO ...

Page 103: ...ar and or play between bolts bushings and bellcranks Replace parts as required c Check lower end of cyclic stick and play at attachment of cyclic intercon necting torque tube Replace bearings and bushings as required 4 Check for axial play in cyclic trim actuators a Disconnect lower end of cyclic control rods from aft ends of trim actuators and check for free play Remove free play by adjusting spr...

Page 104: ...ulkhead center tunnel in the cargo compartment a Disconnect lower end of longitudinal cyclic control rod from aft end of trim actuator and check for axial play Remove free play by adjusting spring adapter screw located in center recess at aft end of actuator assem bly b Check for looseness in longitudinal and lateral cyclic control rod ends located in tunnel Replace rod ends as required c Check fo...

Page 105: ...gone check from splitter assembly aft HEX CONFIGURATION ROUND CONFIGURATION CENTER CABLE 5 INSIDE TAIL BOOM 0 250 INCH 6 35 MM HEX REF CLOSED POSITION OPEN POSITION FORWARD CABLE FEMALE END ACCEPTABLE DIMENSIONS SLOT DIMENSION MALE CONNECTOR UNACCEPTABLE DIMENSIONS 0 450 11 43 HEX CONFIGURATION 0 685 17 40 ROUND CONFIGURATION 0 450 11 43 ROUND CONFIGURATION 0 685 17 40 HEX CONFIGURATION REF TABLE ...

Page 106: ...NNER MALE CONNECTOR INNER FEMALE CONNECTOR INNER COUPLING CONNECTOR OUTSIDE COLLAR SLEEVE MUST BE FIRMLY LOCKED IN PLACE BEFORE TAILBOOM FAIRING IS INSTALLED TAILBOOM FAIRING CABLE END RELIEF AREA RELIEF AREA INSPECT FOR CRACK 88_776 Figure 602 Forward and Center Cable Relief Area Inspection ...

Page 107: ...Revision 24 CENTER CABLE ASSY TAILBOOM FAIRING TELESCOPIC SWIVEL END INSPECT TELESCOPIC SWIVEL END FOR CRACKS AND OR TELECOPTIC SWIVEL SEPERATION FROM THRUSTER CABLE CONDUIT CAP 88_777 FORWARD CABLE CONDUIT CAP Figure 603 Control Cable Telescopic Swivel End Inspection ...

Page 108: ...move tip cap 500N 3 Remove rotating cone assembly 4 Remove access cover from top of stationary thruster assembly 600N 5 Inspect control cables for a Fraying or corrosion no fraying or corrosion allowed b Proper installation of turnbuckle safety clips c Corrosion or cracking on turnbuckles no corrosion or cracking allowed d Proper cable tension 6 Reinstall access cover on top of station ary thruste...

Page 109: ... inch 0 635 mm deep c The latch engagement faying surface where it contacts the plenum is worn more than 0 050 inch 1 270 mm below the original surface 5 Inspect door hinges for wear and hinge fastening hardware for security Repair or replace hinges as required 6 Inspect door for worn or damaged latching and attachment hardware 7 Check insert assembly and latch linkages for wear and lost motion Re...

Page 110: ...urity and broken or missing vanes NOTE Up to five damaged vortex tubes may be blocked off with patches 3 Inspect vortex tube particle separator openings for clogging 4 Inspect gasket tapes for deterioration and security Replace damaged gasket tapes 5 Inspect entire particle separator assembly for cracks holes and distor tion Cracks may indicate filter preload misalignment or distortion when instal...

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