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Pratt & Whitney Rzeszów S.A.

MAINTENANCE MANUAL

PZL-10W ENGINE

1992.08.28

72-02-00

Page 117

Export Control Classification: PL/UE 9E999

C.

Fuel-Control System.

(1)

Defective system operation during engine starting.
Possible causes and schematic procedure: see item A.

(2)

Power turbine rotational speed ( N2 ) governor does not operate.

(a)

Possible causes: fuel-metering pump electrohydraulic valve slide is blocked in hand control position; N2
pick-up is damaged in the control circuit; inlet air temperature (OAT) pick-up is damaged; electric
connection failures between the pick-ups and electronic limiter unit and fuel-metering servovalve;
electronic limiter unit defective; fuel- metering pump out of order.

(b)

Schematic procedure:

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Summary of Contents for PZL-10W

Page 1: ...e zostały sklasyfikowane poniżej Export Control Classification This document contains technical data Included Technical Data is classified as follows 1 ECL s 2 P USML 3 P ECCN s 4 USML ITAR 5 ECCN EAR 6 Polish PL UE 9E999 Property of PRATT WHITNEY RZESZÓW S A All rights reserved MAINTENANCE MANUAL GAS TURBINE ENGINE Model PZL 10W Applies to all the engines that conform to FAR 33 and JAR E regulati...

Page 2: ...hitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE Page 2 2010 12 01 Export Control Classification PL UE 9E999 Pratt Whitney Rzeszów S A confirms the compliance of the English language Manual to the Original ...

Page 3: ...ERVICE BULLETIN LIST This list contains all issued Service Bulletins that updates this manual This list includes the number of each service bulletin and the date of updating the manual This list will be supplemented when updating the manual BULETIN NUMBER DATE OF MANUAL INTRODUCTION REMARKS E 19W176 F 2015 2015 12 30 E 19W187 F 2016 2016 11 15 E 19W189 F 2018 2018 04 12 ...

Page 4: ...e pages 1 71 List of effective pages 1 2 71 02 00 402 409 501 502a 535a 535b 508 509 510 515 535c 535d 517 529 532 711 72 List of effective pages 1 2 72 02 00 25 26 31 145 146 207 212 213 214 303 304 306 501 603 604 72 52 00 601 73 List of effective pages 1 73 22 03 201 77 List of effective pages 1 77 02 00 2 79 List of effective pages 1 79 02 00 10 11 80 List of effective pages 1 80 02 00 406 2 7...

Page 5: ...AINTENANCE MANUAL PZL 10W ENGINE 70 Record of Revisions 2010 12 01 Page 2 Export Control Classification PL UE 9E999 Rev No CHAPTER SECTION NUMBER PAGE NUMBERS REVISION ISSUE DATE SB NUMBER INTRODUCE REVISION CHANGED NEW CANCELLED ...

Page 6: ...rocedures and data The maintenance manual revisions will be incorporated by the page exchange for the new ones The revised manual text on new introduced page will be marked by vertical line on left margin New pages with date of approval will be introduced by the Bulletins that will be approved in Polish version by the Quality Director of Pratt Whitney Rzeszów S A The up to date List Effective Page...

Page 7: ...ent to filter inlet E engine with reserve control system ALRT 2E in the fuel control system EUP 10W K engine with Kamatics transmission shaft M engine with FADEC fuel control system T engine fitted for tropical climate For basic variant engines certified to NLGW 1971 chapter 6 the Variant Letters A or AS are not included in the engine number Example S N 119994024A PZL 10W Engine 1st series variant...

Page 8: ...INTENANCE MANUAL PZL 10W ENGINE Export Control Classification PL UE 9E999 70 General Requirements 75 Air System 71 Power Plant 77 Monitoring Instruments of Engine Operation 72 Engine 79 Oil System 73 Fuel System 80 Starting System ...

Page 9: ...2 08 28 72 List of Chapters Page1 Export Control Classification PL UE 9E999 LIST OF CHAPTERS SUBJECT CHAPTER General Requirements 70 Power Plant 71 Engine 72 Fuel System 73 Air System 75 Monitoring instruments of engine operation 77 Oil System 79 Starting System 80 ...

Page 10: ...nit controlling the electrohydraulic servo valve of fuel metering pump IPS icing protection system N1 compressor turbine rotational speed N2 power turbine rotational speed Nr main rotor rotational speed o index designating observed vfilue OAT outside air temperature OEI one engine inoperative rating P power PT power turbine PTGV power turbine guide vane p3 air pressure behind compressor pam ambien...

Page 11: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE Export Control Classification PL UE 9E999 Chapter 70 General Requirements 70 General Requirements ...

Page 12: ...010 12 01 2 2016 11 15 List of Chapters 1 1992 08 28 List of Abbreviations and Designations 1 1992 08 28 List of Effective Pages 1 2018 03 16 Table of Contents 1 1992 08 28 2 1992 08 28 70 02 00 1 1992 08 28 201 1992 08 28 202 1992 08 28 203 1992 08 28 204 1992 08 28 205 1992 08 28 206 1992 08 28 207 1992 08 28 208 1992 08 28 209 1992 08 28 210 1992 08 28 211 1992 08 28 212 1992 08 28 213 1992 08 ...

Page 13: ...rning the assembly of Thread Joints 203 C Locking Devices 205 3 Identification of Metal Particles 2 1 3 A General 2 1 3 B Test Procedure 2 1 4 C Test Procedure for Identification of Titanium Particles 2 1 5 GENERAL REQUIREMENTS SERVICING 70 02 00 301 1 Check of the oil level in the tank and the oil refill 301 2 Oil draining from the oil system 301 3 Oil exchange in the oil system 302 4 Change of t...

Page 14: ...L 10W ENGINE 70 1992 08 28 Table of Contents Page2 Export Control Classification PL UE 9E999 C The pipe lines installation 402 D The installation of the telescopic connection on the pipe line 403 E The procedures after the pipe line installation 404 ...

Page 15: ...0W ENGINE 1992 08 28 70 02 00 Page1 Export Control Classification PL UE 9E999 GENERAL REQUIREMENTS 1 General Information Chapter 70 describes general requirements concerning the engine maintenance It describes standard parts and techniques of their use ...

Page 16: ...disturbed inside poorly installed lines Protect all electric lead and equipment against fuel and oil Pay special attention for cleanness of contact surfaces of connections Cover by special caps or polyethylene sheets the halves of contact connections C If foreign object drops into the engine it must be located and retrieved before work process resumes even if this would require a considerable amou...

Page 17: ...er L effective length of torque wrench A distance through which force is applied to part R reading on scale or torque wrench Torque values are there in Nm kGm Lb in distance values in mm in Example A torque of 3 9 Nm 0 4 kGm 34 72 Lb in is desired on a part when using a torque wrench measuring 200 mm 7 87 in from center of handle or handle swivel pin to center of its square adapter and special ada...

Page 18: ...ified in the assembly procedure lubricate the threads of the connections in the hot engine part with the grease before assembling Section 72 02 00 Table 202 item 5 The grease which is intended against seizings and gallings shall be placed in the form of thin and even layer and the excess of it shall be completely removed by clean clothes 3 Assembly of the thread joints having specified torque limi...

Page 19: ...leading cone the extent shall be bigger than the cone height c for a bolt with shortened thread portion in connection to a plain nut the extent of non threaded bolt portion shall not be smaller than half of thread pitch d for another cases the extent shall be not less than one thread pitch 6 Self locking Nuts Where self locking nuts are used record torque necessary to turn nut on bolt before seati...

Page 20: ...ud must be selected 10 Hose and Tube Threaded Couplings When leakage occurs at a coupling do not attempt to correct it by overtorqueing Disassemble the fitting and check for nicks burrs and or foreign matter Use new parts to rectify C Locking Devices 1 General Safety wire lockwashers tab lock tabwashers keywashers capwashers and cotterpins must never be reused All safety wire and cotterpins must f...

Page 21: ...ety wiring should not cross on the same surface e Check the units to be safety wired to make sure that they have been correctly torqued and that the wiring holes are properly positioned in relation to each other When there are two or more units it is desirable that the holes in the units are in the same relationship to each other Never overtorque or loosen units to obtain proper alignment of the h...

Page 22: ...S TIGHT AROUND HEAD TWIST WIRE UNTIL WIRE IS JUST SHORT OF HOLE IN THE SECOND BOLT KEEPING WIRE UNDER TENSION TWIST IN A CLOCKWISE DIRECTION UNTIL THE WIRE IS TIGHT WHEN TIGHTENED THE WIRE SHALL HAVE APPROXIMATELY 3 5 TWISTS PER 10 MM 7 12 TWISTS PER INCH BRING THE FREE END OF THE WIRE AROUND THE BOLT HEAD IN A COUNTERCLOCKWISE DIRECTION AND UNDER THE END PROTRUDING FROM THE BOLT HOLE TWIST THE WI...

Page 23: ... AND BY MAKING A COUNTERCLOCKWISE TWIST AFTER IT LEAVES THE HOLE THE LOOP WILL BE SECURED IN PLACE AROUND THE HEAD OF THE BOLT EXAMPLE 5 EXAMPLE 6 EXAMPLE 7 EXAMPLE 8 EXAMPLES 5 6 7 AND 8 SHOW METHODS FOR WIRING VARIOUS STANDARD ITEMS WIRE MAY BE WRAPPED OVER THE CASTELLATED NUT RATHER THAN AROUND IT EXAMPLE 9 EXAMPLE 10 EXAMPLE 11 Safety Wiring Examples Dwg 203 Sheet 1 of 3 EXAMPLE 9 SHOWS THE ME...

Page 24: ...ANGLE BRACKET WITH THE WIRE WRAPPED AROUND THE BRACKET EXAMPLE 15 SHOWS CORRECT METHOD FOR WIRING ADJUSTABLE CONNECTING ROD EXAMPLE 16 SHOWS CORRECT METHOD FOR WIRING THE COUPLING NUT ON FLEXIBLE LINE TO THE STRAIGHT CONNECTOR ON RIGID TUBE FITTINGS INCORPORATING WIRE LUGS SHALL BE WIRED AS SHOWN IN EXAMPLES 17 AND 18 WHERE NO LOCKWIRE LUG IS PROVIDED WIRE SHOULD BE APPLIED AS SHOWN IN EXAMPLES 19...

Page 25: ... HEX IS AN INTEGRAL PART OF THE CONNECTOR EXAMPLE 24 COUPLING NUTS ON A TEE SHALL BE WIRED AS SHOWN ABOVE SO THAT TENSION IS ALWAYS IN THE TIGHTENING DIRECTION EXAMPLE 25 EXAMPLE 26 EXAMPLE 22 EXAMPLE 23 EXAMPLES 26 27 AND 28 SHOW THE PROPER METHOD FOR WIRING VARIOUS STANDARD FITTINGS WITH CHECK NUT WIRED INDEPENDENTLY SO THAT IT NEED NOT BE DISTURBED WHEN REMOVING THE COUPLING NUT Safety Wiring E...

Page 26: ...the safety hole wall or the part wall The washer fastening on the flange and the tab bending shall exclude any possibility of the washer turning towards unscrew c Adjustment of the washer tab position to the nut bolt wall shall be complied with screw or bolt tightening but no more than by angle of 0 52 rad 30 grad if no torque specified or by the washer exchange to another one The adjustment by me...

Page 27: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 70 02 00 1992 08 28 Page 212 Export Control Classification PL UE 9E999 Examples of Keywashers Dwg 204 ...

Page 28: ...ual inspection a few simple tests will identify the metal present 2 The following items are required to make these tests See 72 02 00 Table 201 and 202 WARNING USE EXTREME CARE IN HANDLING ACIDS AND OTHER CHEMICALS a Acetone 10 cm3 0 61 cu in 10 ml b Aqueous solution containing 10 ammonium nitrate 57 g 2 oz c Hydrochloric acid 50 by volume 60 g 2 oz d Nitric acid concentrated e Sodium hydroxide pe...

Page 29: ... a clean soldering iron heated to 533 K 260 C 560 F and tinned with 50 50 solder 50 percent tin 50 percent lead a tin particle dropped on the iron will melt and fuse with the solder e Aluminum When a particle of aluminum is placed in hydrochloric acid 50 percent by volume it will fizz with rapid emission of gas bubbles and form a black residue Silver and bronze do not noticeably react with hydroch...

Page 30: ...ced on another spot plate to observe and verify the results obtained 2 Add several crystals of ammonium bifluoride and 5 to 10 drops of water to the metal particles or two to three drops of 5 to 10 percent hydrofluoric acid solution can be used instead 3 Let stand 20 30 minutes or until the solution becomes slightly discolored 4 Add two to three drops of 1 1 sulfuric acid one part demineralized wa...

Page 31: ...E OIL THROUGH A FILTER WITH A SCREEN MESH NO LESS THEN 0 063 mm x 0 063 mm 0 0025 in X 0 0025 in 2 MINIMUM OIL LEVEL IN THE TANK WHICH ALLOWS THE ENGINE TO BE OPERATED IS 5 dm 3 5 I 1 3 US gal 3 Install filler cap tighten the handwheel and safety wiring 2 Oil draining from the oil system NOTE At ambient temperature below 238 K 35 C 31 F if the prolonged helicopter parking is expected then the oil ...

Page 32: ...olding with second wrench the plug body 6 Safety wire the plug against screwing out C Oil drain from the compressor rear bearing area 1 Proceed as at item 2 B D Oil drain from the compressor turbine bearing area 1 Proceed as at item 2 B E Oil drain from the power turbine bearing area 1 Proceed as at item 2 B F Oil drain from the oil cooler 1 Proceed according the Helicopter Maintenance Manual 3 Oi...

Page 33: ...grade Two oil groups are approved to use on the engine Synthetic oils see 71 02 00 ADJUSTMENT TEST item 1 B and mineral oils see 71 02 00 ADJUSTMENT TEST item 1 C A Exchange the oil grade within the same oil group 1 Perform the oil exchange in the oil system see item 3 NOTE 1 Changing from B 3B oil to AeroShell Turbine Oil 555 or vice versa proceed according to item B 2 Record each oil change from...

Page 34: ...167 F for an oil flow through the cooler Make operations acc to 71 02 00 ADJUSTMENT TEST item 4 B 2 4 B 3 and 4 B 5 Keep engine working at the oil temperature above 348 K 75 C 167 F during 3 minutes 6 Shutdown the engine see 71 02 00 ADJUSTMENT TEST item 3 G 7 Exchange the oil in the oil system see item 3 NOTE Record each oil change from current oil grade to the anothger one in the engine log book...

Page 35: ... 1 Remove the safety wire of pipe connections before disconnecting without damage to holes for these wires 2 Remove the pipe lines from the engine one by one Disconnect the pipe that are connected on the engine with clamps tube clamps support clamps before the removal 3 Hold with second wrench the ferrule from which the nut is unscrewed when unscrewing the nuts 4 Secure with plugs or polyethylene ...

Page 36: ...le 202 item 4 the inside surfaces of the pipe lines and dry them on the air b Inspect the pipe to be installed and its suitable ferrules any dents or mechanical failures of outside surfaces and cones and threads are not allowed c Inspect the rubber sealing rings of the telescopic connections deformations breaches and disruptions are not allowed 2 Meet the following requirements when installing the...

Page 37: ...clamp and bracket c Tighten the pipe nuts with the wrench without an extension when holding the appropriate ferrule with the second wrench to avoid the excessive stresses in the pipe on in the place of connection to the accessory d Check the quantity and spacing of the fitting blocks and clamps and so the completeness of the clamping elements and rubber connectors acc to the master fully assembled...

Page 38: ...n with fittings min 5 mm 0 2 in c Between lines and immovable engine elements min 3 mm 0 12 in d Between lines and movable engine elements min 8 mm 0 3 in 2 Wipe the pipe connection and the places of the pipe line connection to the accessories with a petroleum moistened cloth see 72 02 00 Table 202 item 4 CAUTIONS 1 VENT AIR FROM THE FUEL SYSTEM AFTER THE REMOVAL AND INSTALLATION OF THE FUEL SYSTE...

Page 39: ...Page 405 Export Control Classification PL UE 9E999 If the nut does not screw in remove the pipe line and inspect the sealing elements of the connection No mechanical failures are allowed on the sealing surfaces In the case of the failure occurrence the pipe line should be exchanged ...

Page 40: ...MAINTENANCE MANUAL PZL 10W ENGINE 70 02 00 1992 08 28 Page 406 Export Control Classification PL UE 9E999 1 Nut 2 Spacing sleeve 3 Sealing ring 4 Spacing sleeve 5 Connector 6 Split ring Telescopic connection of pipe lines Dwg 401 ...

Page 41: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE Export Control Classification PL UE 9E999 Chapter 71 Power Plant 71 Power Plant ...

Page 42: ... 542 1992 08 28 412 2002 04 30 543 1992 08 28 412a 2002 04 30 544 1992 08 28 412b 2002 04 30 545 1992 08 28 413 2002 04 30 546 1992 08 28 414 1992 08 28 547 1992 08 28 415 416 2002 04 30 548 1992 08 28 417 1997 07 15 549 1992 08 28 550 1992 08 28 501 2015 12 30 551 1992 08 28 502 2009 09 24 552 1992 08 28 502a 2015 12 30 553 1992 08 28 502b 2002 04 30 554 1992 08 28 503 1992 08 28 555 1992 08 28 5...

Page 43: ... Effective Pages 2015 12 30 Page 2 Export Control Classification PL UE 9E999 CHAPTER SECTION PAGE DATE CHAPTER SECTION PAGE DATE 71 02 00 706 2002 04 30 707 2002 04 30 708 2002 04 30 709 2002 04 30 710 2002 04 30 711 2015 12 30 712 2002 04 30 713 2002 04 30 714 2002 04 30 ...

Page 44: ...ons before the engine removal 407 B Removal of the engine from the helicopter 408 C Operations after the engine removal 409 3 Installation of the engine on the helicopter 409 A Preparation operations before the engine installation 409 B Installation of the engine on the helicopter 410 C Operation to do after the engine installation 412a 4 Checking and correction of the engine setting 412a POWER PL...

Page 45: ...ne shut down during flight 518 I Emergency shut down of the engine during flight 519 J Engine start during flight 519 K Engine operation 520 4 Inspection of the engine 524 A General 524 B Engine warm up and measurement of parameters 525 C Inspection of the fuel metering system functioning 529 5 Engine adjustment 542 A General 542 B Engine start adjustment 542 C Adjustment of acceleration 545 D Fue...

Page 46: ...eed N2 limiter 557 I Adjustment of the engine oil system pressure 564 POWER PLANT CLEANING AND PAINTING 71 02 00 701 1 Compressor washing 701 A General information 701 B Frequency of compressor washing 701 C Equipment for compressor washing 702 D Cleaning and rinsing liquids 706 E Compressor washing during engine dry motoring 709 F Compressor washing during engine running 711 ...

Page 47: ...move them from the exhaust duct 4 Unscrew the nuts 11 and remove them together with the washers of the bolts 10 fastening the halfrings 8 to the flanges of power turbine and exhaust duct Remove the halfrings 8 from the engine 5 Unscrew the remaining nuts 11 and remove them together with the washers of the bolts 12 fastening the exhaust duct to the power turbine casing Remove the exhaust duct from ...

Page 48: ...lly the bolts 5 with new washers 6 see 72 02 00 Table 203 Item 17 9 Place the shields 1 at the accessory gearbox and fasten them by the bolts 5 with new washers 6 see 72 02 00 Table 203 item 17 10 Put the inner shield 4 and the exhaust manifold shield 3 on the exhaust manifold and fasten it with the bolts 5 and new washers 6 refer to Table 203 item 17 then slightly tighten the shields together 3 u...

Page 49: ...eed valve on the combustion chamber Dwg 403 1 Unlock the washers 2 and unscrew the bolts 1 fastening the valves 2 Remove the valves 3 Replace the valves following the rule that the bleed valve type a should be placed on the right side Of the right engine and the bleed valve type b should be placed on the left side of the right engine The bleed valve type a should be placed on the left side of the ...

Page 50: ...age 404 Export Control Classification PL UE 9E999 Dwg 401 Legend 1 Shield at drive box 2 Shields of the power turbine case 3 Shields of the exhaust duct 4 Inner shiel 5 Bolt 6 Lockwasher 7 Cone shield 8 Halfrings 9 Tackbolt 10 Long bolt 11 Selflocking nut 12 Short bolt 13 Drive box ...

Page 51: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 71 02 00 Page 405 406 Export Control Classification PL UE 9E999 ...

Page 52: ...imiter and the starter power conductors 5 Disconnect the compensating leads of the temperature indicator and electronic limiter unit from the connecting terminal board 6 Disconnect the fuel feeding pipe from the fuel metering pump and the fuel pipe draining the drained fuel to the helicopter container from the drainage container Put the protective caps on the stubs 7 Disconnect the pipes supplying...

Page 53: ...e lift shift the engine output shaft 12 out from the gearbox Move away the engine from the gearbox for the safe distance to avoid the damage of the splines of the engine output shaft CAUTION APPLYING DURING THE ACTIONS ACCORDING TO SUBITEM 5 EXCESS FORCES CAUSED BY OUT OF LINE POSITIONS OF THE ENGINE OUTPUT SHAFT AND GEARBOX INPUT SHAFT IS PROHIBITED IT MAY CAUSE PLASTIC DEFORMATIONS OF THE DISCON...

Page 54: ... Helicopter Maintenance Manual CAUTION IN THE CASE OF THE ENGINE INSTALLATION IN THE PLACE OF THE ENGINE REMOVED FROM THE HELICOPTER DUE TO THE DAMAGE WHICH COULD POLLUTE THE ENGINE OIL SYSTEM CHIPS FILINGS THE HELICOPTER OIL SYSTEM SHALL BE CAREFULLY WASHED AND THE OIL COOLER INLET DUST FILTER AND OIL TANK SHALL BE REPLACED FOR THE NEW ONES OR ANOTHER OF STANDARD OPERATIONAL VALUE 3 Perform the u...

Page 55: ...e engine output shaft 12 by the oil presently used in the gearbox CAUTION CONNECTION OF THE ENGINE OUTPUT SHAFT WITH THE GEARBOX INPUT SHAFT SHALL BE SMOOTH FULLY CONTROLLED WITHOUT STRIKING IN THE OPPOSITE CASE THE PLASTIC DEFORMATIONS MAY OCCUR PARTICULARLY DEFORMATIONS OF THE PACK COUPLING 35 CAUSING THE INCREASE OF THE DYNAMIC LOAD OF THE GEARBOX DRIVE SHAFT DURING THE ENGINE RUNNING 5 Install...

Page 56: ...ox flange from the gearbox side and is screwed in the engine mounting flange 10 3 Use the bolts 8 and 13 and the washers 9 14 and 15 fastening the protection cover 33 or 32 on the new engine installed on the helicopter The lockwashers 14 may be used if there is evidence that their safety tabs were not bent 11 Install and fasten the engine mounting rods 5 and 6 12 Remove the lifting sling from the ...

Page 57: ...15 20 Install the shield 30 and fasten it by the bolts 29 installing new lockwashers 28 see 72 02 00 Table 203 item 17 21 Install the oil tank together with the dust separator and the inlet duct in accordance with the Helicopter Maintenance Manual 22 Install the tachometer generator N1 on the accessory drive box and connect it to the electric manifold 23 Install the pick up of the oil pressure and...

Page 58: ...these elements to the position normal operation if they were in the position emergency operation 33 Check and in case of necessity safety all the pipe lines and the electric connectors with wire C Operation to do after the engine installation 1 Perform the inner depreservation of the engine see 72 02 00 SERVICING item 4 C 2 2 Inspect the fine füel filter see 73 22 00 CLEANING PAINTING item 2 3 Mak...

Page 59: ...t and gearbox input shaft by the change of the length of the rods 5 and 6 3 Install and attach the rods 4 and 7 NOTE The rods of the engine suspension shall be installed without any excessive tension To make it check each rod 4 5 6 7 for movement by manual turning around the longitudinal axis within the angle limits established by the spherical inserts of the rod mounting points If not adjust the ...

Page 60: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 2002 04 30 71 02 00 Page 413 Export Control Classification PL UE 9E999 THIS PAGE IS LEFT BLANK INTENTIONALLY ...

Page 61: ...7 Engine mounting rods 8 Bolt 9 Washer 1 0 Engine mounting flange 1 1 Gearbox flange 1 2 Engine output shaft 1 3 Bolt 1 4 Lockwasher 1 5 Washer 1 6 Oil injector 1 7 Sealing ring 1 8 Nut 1 9 Washer 20 Washer 2 1 Bolt 22 Washer 23 Nut 24 Protection cap 25 Washer 26 Bolt 27 Washer 28 Lockwasher 29 Bolt 30 Shield 3 1 Sleeve 32 Transportation cover 33 Protection cap 34 Sleeve 35 Plate coupling 36 Artic...

Page 62: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 2002 04 30 71 02 00 Page 415 416 Export Control Classification PL UE 9E999 Removal and installation of the engine on the helicopter Dwg 402 ...

Page 63: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1997 07 15 71 02 00 Page 417 Export Control Classification PL UE 9E999 ...

Page 64: ...NATO Code F 44 conf MIL DTL 5624T or conf DEF STAN 91 86 k No 3 Jet Fuel conf GB 6537 2006 NOTE 1 It is allowable to use the fuel grades listed in subitem 1 and the fuel system icing inhibitors listed in subitem 2 that meet the reference standards listed in the relevant subitems or their respective replacement standards 2 During engine operation at ambient temperature 278 K 5 C 41 F and below it i...

Page 65: ... conf ГOCT 8313 88 e И М conf ТУ 6 10 1458 79 f ТГФ conf ГOCT 17477 75 g ТГФ М conf ТУ 6 10 1457 79 3 Static Dissipator Additives added to fuels a Stadis 450 RDE A 621 conf DEF STAN 91 91 5 4 Fuel parameters at Fuel Metering Pump inlet a Temperature 223 K 333 K 50 C 60 C 58 F 140 F b Pressure 49 kPa 118 kPa 0 5 kG cm 2 1 2 kG cm 2 7 1 psi 17 1 psi c Purity of the fuel not worse than 8 grade conf Г...

Page 66: ...olAero 599 oil Thus using the first oil after the second one and vice versa does not require change of oil 2 Oil pressure in the engine a At ground idle and flight idle min 196 kPa 2 kG cm 28 4 psi b At higher ratings 245 kPa 392 kPa 2 5 kG cm2 4kG cm2 35 6 psi 56 9 psi NOTES 1 Under negative G loads transient drop of oil pressure in the engine is permitted down to 49 kPa 0 5 kG cm2 7 1 psi with i...

Page 67: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 71 02 00 2002 04 30 Page 502b Export Control Classification PL UE 9E999 THISPAGE IS LEFT BLANKINTENTIONALLY ...

Page 68: ...5 MK 8 or MK 8II per ГОЅТ 6457 66 or MC 8IÏ per OCT 38 01163 78 b Mixture by volume 25 of oil conf MIL L 6082D Grade 1100 or conf DERD 2472 B O 75 of oil conf MIL L 6081C Grade 1010 or conf DERD 2490 2 Oil pressure in engine The pressure at applicable ratings as for synthetic oil see item B subitem 2 3 Oil temperature at engine inlet a Minimum for starting 248 K 25 C 1 3 F b Minimum for entering f...

Page 69: ...nt temperature 223K 323 K 50 C 50 C 58 F 122 F b Altitude above sea level max 6000 m 19685 ft E Parameters 1 Maximum power with air bleed closed a 2 5 minutes OEI rating 846 kW 1150 kM 1134 HP The power is rated up to altitude 1000 m 3281 ft under International Standard Atmosphere conditions and ambient temperature increased up to 1 5 K 15 C 27 F above International Standard Atmosphere temperature...

Page 70: ...39 b For 30 minutes OEI rating 121 c For TAKE OFF rating 109 d For Maximum Continuous rating 94 NOTE 100 indication of torquemeter corresponds to 272 Nm 27 7 kGm 2404 Lb in of power turbine shaft torque and 780 Nm 79 5 kGm 6900 Lb in of torquemeter shaft 3 Max rotational speed of gas generator observed a for 2 5 minutes OEI rating 102 b for 30 minutes OEI rating 98 c for TAKE OFF rating 97 d for M...

Page 71: ...5 Rotational speed of power turbine a At ground idle resulted 65 86 for information only b At continuous operation above ground idle 95 105 NOTES 1 At transients no longer than 15 seconds the power turbine speed drop down to 85 and overspeed to 112 is allowed 2 100 indication of power turbine and main rotor tachometer corresponds to 22490 r p m of power turbine rotor 7833 59 r p m of torquemeter s...

Page 72: ...ne engine while on the second engine that phenomenon have not occured yet at take off rating on one engine the N1 or gas temperature reaches 97 or 998 K 1337 F 725 C respectively and on the second engine does not yet In that case the differences in parameters of twin engines can increase e g TQ up to approx 10 what is a normal phenomenon and does not evidence that the engines fell out of step 2 In...

Page 73: ... ice and helicopter cabin ventilation air bleeds Following accomplishing the engine start the needless air bleeds shall be switched off b Prior to every cold engine starting under low ambient temperature below 273 K 0 C 32 F conditions make sure if the engine inlet duct is not iced or if the turbocompressor blades are not frozen to the stator cases When the icing or frozen in blades are found the ...

Page 74: ...ature in the tank will rise to min 313K 40 C 104 F min conditions for continue a flight The procedure as above applies for non icing conditions only e The period between consecutive starter motor activations should not be shorter than 3 minutes Should this condition not be met then after three consecutive starter motor activations it is required to take a 45 minute break to allow the starter motor...

Page 75: ... air bleed for dust separator switched off shall be under these conditions no longer then 30 seconds max 6 Procedures recommended during heavy precipitation a Engine operation during hail is not recommended 7 Procedures recommended in case of exceeding the allowed limits a Following exceeding the 102 of gas generator rotational speed 1043 K 770 C 1418 F of compressor turbine outlet temperature or ...

Page 76: ...k the engine to reveal possible presence of 1 Foreign particles inside the engine compartment 2 Mechanical damages of the engine parts or assemblies G Check the engine attachments tightening of the screws and make sure if excess clearances are not present at attachments joints H Check the engine units and their attachments to reveal possible presence of 1 Mechanical damages 2 Lack of leaden seals ...

Page 77: ...se proper cowlings and inspection openings of the engine 2 If the engine start is not anticipated place the stoppers and protective covers into the engine inlet the exhaust nozzle and the compressor 6th stage air bleeding valve outlet 3 Start run and shut down of the engine A Engine control system The engine control is accomplished from the cockpit by the helicopter control rods connected with the...

Page 78: ...ing system from the following power sources a Internal electric supply helicopter supply source that is the helicopter battery possibility of using during start of both engines or the alternator mounted on the main gearbox powered by the engine which starts as first one supplied by the battery or airfield mains and used to start the second engine b External electric supply airfield supply source p...

Page 79: ... the switch START MOTOR MOTOR WET to the MOTOR position i Set the ENGINES START switch to the RIGHT or LEFT position depending on which engine is to be started j Press the START push button for 2 3 s 3 During cold motoring check a Engine oil pressure which shall be 19 6 kPa 0 2 kG cm 2 2 8 psi minimum b Compressor turbine speed which shall be 18 minimum c Switching off of the electric motor starte...

Page 80: ...e CL to the GROUND IDLE position Alpha CL 25º 40º j Press the START push button for 2 3 s 2 During false starting check a the engine oil pressure which shall be 20 kPa 0 2 kG cm2 2 8 psi b compressor turbine speed which shall be 18 minimum c switching off of the electric motor starter which shall occur within 33 35 s after pressing the START push button d during the compressor turbine speed decrea...

Page 81: ...the fuel delivery pumps k Open the shut off valve of the fuel installation system I Set the CL of the engine started to the alpha CL 50 60 position WARNING BEFORE STARTING THE ENGINE SIGNAL THE AIRPORT PERSONEL THE START BEGINNING NOTE Start of the cold engine at ambient temperature 278 K 5 C 41 F and below shall be performed after switching on the air bleed outlet to the icing protection system a...

Page 82: ... 1 Breaking the engine start is performed by pressing the ABORT push button with concurrent resetting the CL to the ENGINE SHUTDOWN position when any troubles occur during the engine start as follows a No indications of control measuring instruments of power plant b Compressor turbine outlet temperature rises above specified limit c No rise in compressor turbine outlet temperature during the 10 15...

Page 83: ...E POWER SUPPLY OF THE ENGINE START SYSTEM IS CATEGORICALLY PROHIBITED 2 IF AFTER THE ENGINE STOPPAGE THE GAS TEMPERATURE DOES NOT DECREASE OR EVEN TENDS TO INCREASE THEN IMMEDIATELY COLD MOTORING MUST BE PERFORMED IN ORDER TO PREVENT AFTER BURNING THE FUEL IN THE COMBUSTION CHAMBER IN CASE THE AFTER BURNING OF THE FUEL IN THE COMBUSTION CHAMBER OCCURS DURING THE ENGINE STOPPAGE THE 1 ST STAGE COMP...

Page 84: ...nce of the emergency power turbine protective system actuation When the engine is stopped reset the CL to the ENGINE SHUTDOWN position alpha CL 0 10 and close the main fuel cut off valve of the stopped engine J Engine start during flight WARNING ENGINE STARTING DURING FLIGHT IS FORBIDDEN FOLLOWING THE EMERGENCY SHUT DOWN DUE TO ANY ACCESSORY ASSEMBLY OR SYSTEM FAILURE OR IN CASE OF EMERGENCY ENGIN...

Page 85: ...matically controlled in relation to the adjustment of the collective pitch lever of main rotor main rotor loading Electronic limiter unit provides automatic control of engine power furthermore synchronizes the torques of both engines prevents exceeding limits of basic parameters and controls the compressor bleed air valve and engine start system If any automatic control path is damaged switching t...

Page 86: ... gearbox Reset smoothly the CL to AUTOMATIC OPERATION position which corresponds 90 100 at angle scale of the fuel metering pump Collective pitch lever of main rotor stays at extreme low setting During resetting the CL the engine parameters change as result of changing the fuel delivery to the engine according to the fuel metering pump characteristics Gas generator and power turbine speeds increas...

Page 87: ... measuring system indications and the power turbine speed To facilitate it is recommended to use Table 502 During engine acceleration accomplished with the collective pitch lever time of lever movement within 1 2 s engine power control proceeds similarly as when change of steadystate engine operation rating occurs but fuel delivery is metered to the engines according to acceleration characteristic...

Page 88: ...ol By resetting the CL of twin engines to the position between 110 and 120 the servovalve that meters the fuel in fuel metering pump of each engine is reset and blocked at maximum fuel delivery so the engine rating increases as compared to position prior to resetting the CL if the main rotor speed is lower than the power turbine speed limiter adjustment If the main rotor speed however is higher th...

Page 89: ...ompressor speed Engine control is accomplished by the electronic limiter unit which maintains main rotor speed constant within the range depending on adjustment set by the pilot Main parameters of engine operation shall be as in Table 501 7 2 5 min OEI rating operation Transition of the engine operation to 2 5 min OEI rating increased power in relation to the 30 min OEI needs the fuel metering sys...

Page 90: ...OTING 2 Warm up the engine at Gl range To warm up the engine at Gl operate the engine at this rating until oil temperature in the oil tank reaches minimum 293 K 20 C 68 F It is sufficient condition to shift to Fl rating 3 Shift from Gl to Fl rating WARNING DURING SHITTING FROM Gl TO Fl RATING PAY ATTENTION FOR INCREASING THE MAIN ROTOR SPEED WHICH SHALL REACH FIXED VALUE WITHIN PERMISSIBLE OPERATI...

Page 91: ...tor speed within range of 9 5 1 0 5 c Set TAKE OFF at Nr 105 and record parameters d Set Fl rating NOTE During checking the engine parameters all air bleeds for engine and helicopter use shall be shut off 6 Check engine operation during acceleration and deceleration a In order to accelerate the engine shift the collective pitch lever of main rotor from position corresponding Fl to TAKE OFF positio...

Page 92: ...ximately 2 min stop the engine 9 Estimate the engine operation parameters acc to Table 501 Calculate the engine power from torque value reading of indicator of torquemeter and power turbine main rotor speed as follows P kW TQ x Nr x 0 064 P kM TQ x Nr x 0 087 P HP TQ x Nr x 0 086 10 Check if maximum engine power is limited due to high values of N1 or CTOT To make sure if maximum engine power is no...

Page 93: ... PO HP where N power turbine or compressor speed CTOT gas temperature in the engine compressor turbine outlet temperature P power at output engine shaft OAT ambient air temperature at engine compressor inlet in K If temperature is expressed in degree centigrade or degree Fahrenheit the temperature in K shall be calculated acc to formula as follows OAT K OAT C 273 OAT K 0 55 OAT F 32 273 Pam ambien...

Page 94: ...Start and warm up the engine at ground idle NOTE During engine start up the signalling light AIR BLEED should turn itself on b Set smoothly Fl rating While setting observe the light AIR BLEED and speed N1 scale Read N1 value while the light turns off NOTE If the light does not turn off after Fl is reached increase operation rating until the light turns off but not more than up to gas generator spe...

Page 95: ...r continue consecutive checks 3 Inspection of the gas generator speed N1 limiter functioning at control level a Start and warm up the engine at Gl range b Reset the knob LIMITER CHECK TO POSITION N1 c Set the switch LIMITER CHECK to ON position d Smoothly increase operation rating watching the N1 indicator Read the N1 value for which further increase of the power rating is impossible due to actuat...

Page 96: ...ch on for a moment and then switch the icing protection system off After switching on the system CTOT shall increase by 15 30 K 15 30 C 27 54 F and following switching the system off CTOT shall decrease to initial level It is the evidence of correct system functioning WARNING DO NOT SWITCH ON THE ICING PROTECTION SYSTEM AT AMBIENT TEMPERATURE ABOVE 308 K 35 C 95 F 6 Inspection of the overspeed pow...

Page 97: ...e latch maintaining the shut off valve in closed position The warning lamp OVER SPEED TRIP shall turn off 7 Check of engine operation in the EMERGENCY OPERATION reserve control mode a Start and warm up the engine at Gl rating b Perform the engine warm up at Fl for Nr 95 c Reset the CL lever to position EMERGENCY OPERATION watching the speed Nr indicator The speed Nr should reach the range of 104 1...

Page 98: ...l control mode After starting and heating both engines reset both CL levers to the EMERGENCY OPERATION position If the difference between torque indications of the engines in this condition does not exceed 20 the twin engine operation at manual control mode is satisfactory Otherwise adjust the power turbine N2 speed limiter on one or two engines acc to paragraphs 5 H 7 8 9 TABLE 500 Check actuatin...

Page 99: ... 28 Page 534 Export Control Classification PL UE 9E999 Electro hydraulic valve fragment in fuel metering pump location see Fig 517 and 518 1 Latch 2 Electro hydraulic valve Fig 501 Hydro mechanical speed N2 limiter fragment location see Fig 520 1 Push 2 Limiter housing Fig 502 ...

Page 100: ...9 Checking of switching on 2 5 min OEI rating NOTE During inspection of engine operation at 2 5 min OEI the electronic limitèr unit of inoperative engine must be switched on a Start and warm up the engine at Gl rating Record values of speed N1 and gas temperature CTOT at Gl b Bring the engine at F rating or a little above this level to obtain closing the compressor 6 lh stage air bleed valve c Pre...

Page 101: ...the sensor to M 15 5 Nm 1 5 kGm or one M5 6H port tighten the sensor to M 5 5 Nm 0 5 kGm Installation of the vibration sensor in either tapped port allows measuring the vibrations square to the engine axis i e in the horizontal plane b Connect the vibration sensor cable to the measuring tool Next fasten the vibration sensor cable to the aircraft structure with cable ties to prevent any movement of...

Page 102: ...ed to identify the cause by following the guidelines in section 72 02 00 ENGINE TROUBLESHOOTING section 1 B 1 Increased engine vibration level 2 If any problems are found remove the cause and repeat the vibration measurement e Remove the measurement tool instruments from the engine f Record the measured data the highest vibration level found by measurement and the speeds nTS and nTN at which the h...

Page 103: ...ating Department Notice of PZL 10W Engine Vibration Measurement on Power Turbine Case Engine User name Aircraft S N WR 3 gearbox S N WR 3 gearbox operating hours current TBO Engine S N LH RH engine Engine operating hours current TBO Vibration measurement after integration during periodic maintenance other Maximum vibration value mm s Engine rotor speeds at the maximum vibration levels Speed N1 Spe...

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Page 105: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 71 02 00 1992 08 28 Page 536 Export Control Classification PL UE 9E999 ...

Page 106: ...INTENANCE MANUAL PZL 10W ENGINE 1992 08 28 71 02 00 Page 537 Export Control Classification PL UE 9E999 Graph for N1c and CT0Tc reading to determine the possibility of premature occurance of engine maximum power limitation Fig 504 ...

Page 107: ...E 71 02 00 1992 08 28 Page 538 Export Control Classification PL UE 9E999 Graph for determination of the gas producer speed range corresponding to the compressor 6th stage air bleed valve closing or opening in relation to the ambient air temperature tam Fig 505 ...

Page 108: ...36 1000 987 121 121 110 TAKE OFF 90 100 95 105 97 998 725 1337 662 900 888 109 109 98 5 3 MAX CONT 90 100 95 105 93 943 670 1238 574 780 770 94 94 85 5 3 ACCELERATION 90 100 95 105 97 998 725 1337 START 50 60 observed 953 680 1256 Not less than 243 30 22 Gl 25 40 observed 243 388 30 115 22 239 Not less than 0 2 2 28 5 Fl 90 100 95 105 293 388 20 115 68 239 Not less than 5 3 0 2 2 28 5 NOTES 1 Spee...

Page 109: ... engine power according to speed N2 Nr RATING POWER TORQUE for speed N2 Nr kW KM HP 95 96 97 98 99 100 101 102 103 104 105 2 5 min OEI 846 1150 1134 139 138 136 135 134 132 131 130 128 127 126 30 min OEI 736 1000 987 121 120 119 117 116 115 114 113 112 111 110 TAKE OFF 662 900 888 109 108 107 106 104 103 102 101 100 99 98 MAX CONT 574 780 770 94 93 92 92 91 90 89 88 87 86 85 ...

Page 110: ... pump see Fig 518 34 red Adjustment screw of maximum fuel delivery L1 fuel metering pump see Fig 519 30 white Adjustment screw of fuel delivery at Gl M3 fuel metering pump see Fig 517 35 white Adjustment screw of the gas producer speed governor servovalve at 30 min OEI and TAKE OFF N15 fuel metering pump see Fig 517 33 red Adjustment screw of the gas producer speed governor servovalve at 2 5 min O...

Page 111: ...f the control member when observer looks towards the member Each change of control member setting from basic position shall be recorded in the accessory technical certificate it refers to members located in the fuel system accessories or in the engine log book it refers to control member in the oil pressure pump WARNING ADJUSTMENT IS ALLOWED ONLY IN CASE YOU WIU MAKE SURE THAT NO OTHER FACTOR CAUS...

Page 112: ...w S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 71 02 00 Page 543 Export Control Classification PL UE 9E999 1 Adjustment screw 2 Lock nut 3 Seal 4 Safety wire 5 Fuel metering pump case Adjustment screw C7 scheme Fig 506 ...

Page 113: ...HE SCREW C7 AND PAY ATTENTION NOT TO EXCEED PERMISSIBLE LIMIT FOR THIS CONTROL MEMBER e Tighten up lock nut 2 maintaining unchanged position of adjustment screw 1 f Safe lock nut 2 with wire 4 g Place leaden seal 3 on the wire 4 end and tighten up seal with hand press h Record performed adjustment in the technical certificate of fuel metering pump 3 Expected effects of adjustment Turning the screw...

Page 114: ... adjustment screw 1 c Loosen locknut 2 holding the adjustment screw 1 with tubular spanner in unchanged position d Turn anticlockwise or clockwise adjustment screw 1 as needed WARNING PRIOR TO CHANGING LOCATION OF THE SCREW C8 READ IN TECHNICAL CERTIFICATE OF THE UNIT NOTES CONCERNING PREVIOUS ADJUSTMENT CHANGES OF THE SCREW C8 AND PAY ATTENTION NOT TO EXCEED PERMISSIBLE LIMIT FOR THIS CONTROL MEM...

Page 115: ... A MAINTENANCE MANUAL PZL 10W ENGINE 71 02 00 1992 08 28 Page 546 Export Control Classification PL UE 9E999 1 Adjustment screw 2 Locknut 3 Leaden seal 4 Safety wire 5 Fuel metering pump case Adjustment screw C8 scheme Fig 507 ...

Page 116: ...vel of fuel delivery and fuel delivery to be metered at Gl e Permissible change 2 rev from initial adjustment by the of adjustment manufacturer 2 Adjustment procedure with screw M3 see Fig 508 a Remove safety wire 5 with seal 4 b Remove cap nut 1 c Place tubular spanner on adjustment screw 2 d Loosen locknut 3 holding the adjustment screw 2 with tubular spanner in the unchanged position e Turn ant...

Page 117: ...INTENANCE MANUAL PZL 10W ENGINE 71 02 00 1992 08 28 Page 548 Export Control Classification PL UE 9E999 1 Cap nut 2 Adjustment screw 3 Locknut 4 Leaden seal 5 Safety wire 6 Fuel metering pump case Adjustment screw M3 scheme Fig 508 ...

Page 118: ...eszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 71 02 00 Page 549 Export Control Classification PL UE 9E999 1 Adjustment screw 2 Locknut 3 Leaden seal 4 Safety wire 5 Unit case Adjustment screw L1 scheme Fig 509 ...

Page 119: ...ficate of fuel metering pump WARNING PRIOR TO CHANGING LOCATION OF SCREW M3 or L1 READ IN THE TECHNICAL CERTIFICATE OF THE FUEL METERING PUMP NOTES CONCERNING PREVIOUS ADJUSTMENT CHANGES OF SCREW M3 or L1 AND MAKE SURE NOT TO EXCEED PERMISSIBLE LIMIT FOR THIS ADJUSTMENT SCREWS 4 Expected effects of adjustments a Turning the screw M3 clockwise reduces parameters of Gl rating N1 CTOT b Turning the s...

Page 120: ...justment screw 1 c Loosen locknut 2 maintaining the position of adjustment screw 1 unchanged d Turn the adjustment screw 1 anti or clockwise as needed WARNING PRIOR TO CHANGING LOCATION OF THE ADJUSTMENT SCREW H7 READ IN TECHNICAL CERTIFICATE OF THE FUEL METERING PUMP NOTES CONCERNING PREVIOUS ADJUSTMENT CHANGES OF THE SCREW PAY ATTENTION NOT TO EXCEED PERMISSIBLE SETUP e Tighten up the locknut 2 ...

Page 121: ...tney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 71 02 00 1992 08 28 Page 552 Export Control Classification PL UE 9E999 1 Adjustment screw 2 Locknut 3 Seal 4 Safety wire 5 Unit case Adjustment screw H7 Fig 510 ...

Page 122: ...y wire 5 and seal 6 b Remove screw 4 c Unscrew nozzle 1 with screwdriver and pincers and take nozzle out of its seat d Place nozzle 1 with selected port dia into the seat and screw it in e Screw in the screw 4 NOTE Check sealing ring 3 before screwing in the screw 4 Replace the ring if needed f Secure screw 4 with wire 5 g Place seal 6 on the wire end 5 and tighten up the seal using hand press h R...

Page 123: ...S A MAINTENANCE MANUAL PZL 10W ENGINE 71 02 00 1992 08 28 Page 554 Export Control Classification PL UE 9E999 1 Adjustment nozzle 2 Unit case 3 Sealing ring 4 Screw 5 Safety wire 6 Seal Scheme of adjustment nozzle G8 Fig 511 ...

Page 124: ...tment screw 1 c Loosen locknut 2 maintaining the position of adjustment screw 1 unchanged d Turn adjustment screw 1 anti or clockwise as needed WARNING PRIOR TO CHANGING LOCATION OF SCREW Z5 READ IN TECHNICAL CERTIFICATE OF THE FUEL METERING PUMP NOTES CONCERNING PREVIOUS ADJUSTMENT CHANGES PAY ATTENTION NOT TO EXCEED PERMISSIBLE SET UP e Tighten up locknut 2 maintaining the position of adjustment...

Page 125: ...szów S A MAINTENANCE MANUAL PZL 10W ENGINE 71 02 00 1997 02 28 Page 556 Export Control Classification PL UE 9E999 1 Adjustment screw 2 Locking nut 3 Seal 4 Safety wire 5 Unit casing Scheme of adjustment screw Z5 Fig 512 ...

Page 126: ...he initial setting of adjustment size by the manufacturer 2 Adjustment procedure see Fig 513 a Remove safety wire 5 and seal 4 b Remove four screws 2 c Remove lid 3 d Place tubular spanner on adjustment nut 1 e Turn adjustment nut 1 anti or clockwise as needed WARNING PRIOR TO CHANGING THE ADJUSTMENT NUT P15 SETUP READ NOTES CONCERNING PREVIOUS SETUP CHANGES OF THIS MEMBER IN THE TECHNICAL CERTIFI...

Page 127: ...tney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 71 02 00 1992 08 28 Page 558 Export Control Classification PL UE 9E999 1 Adjustment nut 2 Screw 3 Lid 4 Seal 5 Safety wire Scheme of adjustment nut P15 Fig 513 ...

Page 128: ...the CL position angle at which the limiter is reset e Permissible change of 3 mm 0 12 in in respect to initial adjustment setup position 5 Adjustment procedure see Fig 514 a Remove safety wire 3 and seal 4 b Loosen nut 1 holding adjustment stub 2 with the spanner c Loosen locknut 5 holding adjustment stub 2 with the spanner d Turn adjustment stub 2 anti or clockwise as needed e Tighten up locknut ...

Page 129: ...eszów S A MAINTENANCE MANUAL PZL 10W ENGINE 71 02 00 1992 08 28 Page 560 Export Control Classification PL UE 9E999 1 Nut 2 Adjustment stub 3 Safety wire 4 Seal 5 Locknut 6 Connector Scheme of adjustment stub P1 Fig 514 ...

Page 130: ...causes increasing of the limiter actuation speed at low level of its operation e Permissible change 2 revolutions from initial setup by of adjustment the manufacturer 8 Adjustment procedure see Fig 51 5 a Remove safety wire 5 and seal 6 b Place tubular spanner on adjustment screw 1 c Loosen locknut 2 maintaining position of adjustment screw 1 unchanged d Turn the adjustment screw 1 anti or clockwi...

Page 131: ...w S A MAINTENANCE MANUAL PZL 10W ENGINE 71 02 00 1992 08 28 Page 562 Export Control Classification PL UE 9E999 1 Adjustment screw 2 Locknut 3 Washer 4 Case 5 Safety wire 6 Leaden seal Scheme of adjustment screw P58 Fig 515 ...

Page 132: ...at manual control mode in twin engine operation the differences between the engines parameters are beyond limits use the P58 adjusting screw Turn clockwise the P58 adjusting screw on the engine which lags or turn antclockwise the P58 adjusting screw on the engine which advances Turning P58 crew clockwise by approx 1 4 of one revolution causes the N1 compressor speed N1 to increase by 2 5 and the T...

Page 133: ...spanner and holding up nut 3 with the spanner c Remove packing ring 2 d Loosen lock nut 3 maintaining with the screw driver position of adjustment screw 4 unchanged e Turn adjustment screw 4 anti or clockwise as needed using screwdriver 1 f Tighten up locknut 3 using the spanner holding up adjustment screw 4 with screwdriver i g Place packing ring 2 on locknut 3 h Tighten up cup nut 1 holding up l...

Page 134: ...UAL PZL 10W ENGINE 1992 08 28 71 02 00 Page 565 Export Control Classification PL UE 9E999 1 Cap nut 2 Packing ring 3 Locknut 4 Adjustment screw 5 Overflow valve case 6 Safety wire 7 Leaden seal Adjustment screw of the engine oil system Fig 516 ...

Page 135: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 71 02 00 1992 08 28 Page 566 Export Control Classification PL UE 9E999 ...

Page 136: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 71 02 00 Page 567 Export Control Classification PL UE 9E999 ...

Page 137: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 71 02 00 1992 08 28 Page 568 Export Control Classification PL UE 9E999 ...

Page 138: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 71 02 00 Page 569 Export Control Classification PL UE 9E999 ...

Page 139: ...special washing collector mounted for the time of washing in the engine inlet duct Whereas for helicopters equipped with permanent compressor washing system see helicopter operation manual it is possible to make compressor washing for running engine besides the washing made during engine dry motoring B Frequency of Compressor Washing The environment in which the engine operates decides upon the ty...

Page 140: ...Pa 4 kG cm 2 57 psi First of these tanks 5 is assigned for cleaning liquid the second tank 8 for rinsing liquid b Two valves 4 designed to shut off and open the compressed air supply to the tanks 5 and 8 c Two valves 6 designed to shut off and open the supply of cleaning or rinsing liquids to the spray ring 7 d Safety valve shut off valve 3 adjusted to pressure of 343 kPa 3 5 kG cm 2 50 psi e Mano...

Page 141: ...3 Export Control Classification PL UE 9E999 1 Compressed air source 2 Manometer 3 Safety valve shut off valve 4 Valves of air supply line 5 Cleaning liquid tank 6 Valves of cleaning liquid line 7 Spray ring see Dwg 702 8 Rinsing liquid tank Diagram of Compressor Washing Equipment Dwg 701 ...

Page 142: ...hitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 71 02 00 2002 04 30 Page 704 Export Control Classification PL UE 9E999 Principle of projection Note All dimensions are given in mm inches Spray Ring Dwg 702 ...

Page 143: ...gines distributor on board connection and connecting elements Having the compressor washing device see Para 1 connected to the on board connection it is possible to make compressor washing during both engine dry motoring and engine running 1 On board connection 2 Three position distributor 3 Connecting elements of the right engine 4 Connecting elements of the left engine 5 Spray ring of the left e...

Page 144: ...ring engine dry motoring 1 above 278 K 5 C 41 F Sodium carbonate Na2C03 Sodium nitrate NaN03 Liquid glass Na2Si03 Distilled demineralized water 5 15 g 0 18 0 53 oz 5 1 5 g 0 18 0 53 oz 5 15 g 0 18 0 53 oz 5 dm 3 5 0 I 1 32 US gal 2 above 275 K 2 C 36 F Ardox 624 concentrated Fuel being used Drinking water 0 2 dm 3 0 2 I 0 21 US quart 2 dm 3 2 0 I 2 1 US quart 2 8 dm 3 2 8 I 2 9 US quart from 248 K...

Page 145: ...1 0 dm 3 1 0 I 1 1 US quart 4 0 dm 3 4 0 I 4 2 US quart 7 above 273 K 0 C 32 F ARDROX 6367 Drinking water 1 0 dm 3 1 01 1 1 US quart 4 0 dm 3 4 0 I 4 2 US quart Liquids used for compressor washing during engine running 1 above 273 K 0 C 32 F DASIC ZOK 27 Distilled or demineralised water 1 0 dm 3 1 01 1 1 US quart 4 0 dm 3 4 0 I 4 2 US quart 2 above 273 K 0 C 32 F ARDROX 6367 Distilled or demineral...

Page 146: ... 0 66 US gal 2 5 dm 3 2 5 I 0 66 US gal 3 Below 248 K 25 C 12 F Drinking water Methyl alcohol ethanol 2 dm 3 21 0 53 US gal 3 dm 3 3 I 0 79 US gal Liquids used for compressor rinsing during engine running 1 Above 273 K 0 C 34 F Distilled or demineralized water 5 dm 3 5 I 1 32 US gal NOTE 1 Drinking water used for cleaning and rinsing liquids shall meet the following requirements a Visual inspectio...

Page 147: ...e stub pipe f Secure the air bleed valves of the combustion chamber and compressor VI stage against spilling of the solution flowing out of them Seal these valves e g by foil or provide vessels to collect the liquid flowing out g Put vessels also under the engine air inlet exhaust nozzle and draining valve for the solution drained from them CAUTION COMPRESSOR WASHING IS PERFORMED ON A COLD ENGINE ...

Page 148: ...ps down to the value of approx 5 stop supplying the solution through the spray ring h Wait for 15 minutes to enable the cleaning solution to soften the dirt layers built up on engine s parts being washed i Repeat operations as per items f to h next two times NOTE 1 The liquid volume of 5 dm 3 5 I 1 32 US gal in the tank makes possible to perform the washing by making engine dry motoring 3 to 4 tim...

Page 149: ...ssor washing system cleaning is made during dry motoring according to the procedures mentioned above after connecting the ground washing equipment to the on board connection according to recommendations of the Helicopter servicing manual F Compressor washing during engine running This type of washing may be only made for helicopters equipped with a permanent compressor washing system To clean the ...

Page 150: ...ecreasing of the turbocompressor speed and engine gas temperature These parameters will go back to values close to the initial values when the rinsing liquid is used up f Close the valve supplying the rinsing liquid to the helicopter washing system g Change the engine rating to the ground idle rating and shutdown the engine h Disconnect the hose of the ground washing equipment from the on board co...

Page 151: ... ENGINE or LEFT RIGHT ENGINE f When the engine runs at the rating that suits the turbocompressor speed higher by 2 3 than the speed at which the compressor 6th stage bleed air valve is closed open the valve supplying the cleaning liquid to the helicopter washing system Keep the valve in this position till all the liquid volume is used up 5 dm 3 per one engine NOTE During washing rinsing observe de...

Page 152: ...INTENANCE MANUAL PZL 10W ENGINE 71 02 00 2002 04 30 Page 714 Export Control Classification PL UE 9E999 1 Inlet duct 2 Oil tank 3 Inlet dust separator 4 Inspection opening cover 5 Spray ring 6 Clamp Spray ring installation Dwg 704 ...

Page 153: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE Export Control Classification PL UE 9E999 Chapter 72 Engine 72 Engine ...

Page 154: ... 08 28 11 1992 08 28 130 1992 08 28 12 1992 08 28 131 1992 08 28 13 1992 08 28 132 1992 08 28 14 1997 02 28 133 1992 08 28 15 1997 02 28 134 1992 08 28 16 1997 02 28 135 1992 08 28 17 1992 08 28 136 1992 08 28 18 1992 08 28 137 1992 08 28 19 2004 08 28 138 1992 08 28 20 1992 08 28 139 1992 08 28 21 1997 02 28 140 1992 08 28 22 1992 08 28 141 1992 08 28 23 1992 08 28 142 1992 08 28 24 clean 1992 08...

Page 155: ...08 28 613 2006 03 01 316 1992 08 28 614 2006 03 01 317 1992 08 28 318 1992 08 28 72 52 00 1 1992 08 28 319 1992 08 28 2 1992 08 28 401 1992 08 28 3 1992 08 28 501 2015 12 30 4 1992 08 28 601 1992 08 28 5 1992 08 28 602 1992 08 28 6 1992 08 28 603 2015 12 30 401 2008 01 20 604 2016 11 15 402 2008 01 20 605 2018 04 12 403 2008 01 20 606 2009 07 10 601 2015 12 30 607 2009 07 10 602 2006 03 01 608 199...

Page 156: ...lies 11 C Engine overall dimensions and weight 12 D Kinematics of the engine 12 E Engine thermodynamic parameters and performance 12 F Accessories and fuel system parameters 13 G Accessories and oil system parameters 16 H Accessories and starting system parameters 18 I Accessories and air and icing protection system parameters 19 3 Airworthiness limitations of PZL 10W engine 25 4 Counting of the e...

Page 157: ...stem 135 ENGINE MAINTENANCE PRACTICES 72 02 00 201 1 Designations of engine main assemblies 201 2 Direction definition 201 3 Special tools materials used up during the engine utilization and spare parts 201 ENGINE SERVICING 72 02 00 301 1 Shipment of engine 301 2 Storage of engine 301 3 Storage of engine accessory 304 4 Unpacking and depreservation of engine 304 5 Engine preservation 310 6 Packagi...

Page 158: ...DUST SEPARATOR DESCRIPTION AND OPERATION 72 22 00 1 1 General information 1 2 Description 1 3 Operation 2 AIR INLET WITH DUST SEPARATOR REMOVAL AND INSTALLATION 72 22 00 401 COMPRESSOR DESCRIPTION AND OPERATION 72 32 00 1 1 General information 1 2 Description of the individual compressor assemblies 1 COMPRESSOR INSPECTION AND CHECK 72 32 00 601 1 Compressor rotor rotation check 601 2 Inspection of...

Page 159: ... 601 1 Combustion chamber and whirling injector inspection 601 A General information 601 B Inspection of flame tube front segment inner space 601 C Inspection of flame tube rear segment inner space 603 D Inspection of outer space in front part of combustion chamber 603 E Criteria of evaluation of cracks of outer flame tube in the area of holes destined for ignition units 609 TURBINES DESCRIPTION A...

Page 160: ...e and shields of exhaust pipe 603 ACCESSORY DRIVES DESCRIPTION AND OPERATION 72 62 00 1 1 General information 1 CENTRAL DRIVE DESCRIPTION AND OPERATION 72 62 01 1 1 Description and operation 1 ACCESSORY DRIVE BOX DESCRIPTION AND OPERATION 72 62 02 1 1 Description and operation 1 ACCESSORY DRIVE BOX CLEANING AND PAINTING 72 62 02 701 1 Inspection and cleaning of the oil injector holes in the access...

Page 161: ...The electric starter with the one way coupling is placed at engine inlet in central line The inlet case assembly is integral with the accessory drive box that transmits the drive from the turbocompressor to the fuel metering pump oil pumps tachometer generator and centrifugal vent The engine compressor mixed type consists of six axial stages and centrifugal stage The compressor rotor is driven by ...

Page 162: ...ckets and wired safety NOTES 1 The electric starter see Dwg 2 item 14 is connected directly to the terminal board see Dwg 3 item 28 by the leads of 25 mm 2 0 039 sq in cross section area omitting the electric manifold The lead ends of the starter and the lead terminals of the helicopter system the polarity maintenance of the connected terminals is not required are connected on the terminal board 2...

Page 163: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 72 02 00 Page 3 4 Export Control Classification PL UE 9E999 PZL 10W engine longitudinal section Dwg 1 ...

Page 164: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 72 02 00 Page 5 6 Export Control Classification PL UE 9E999 PZL 10W engine right side view Dwg 2 ...

Page 165: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1997 02 28 72 02 00 Page 7 8 Export Control Classification PL UE 9E999 PZL 10W Engine left side view Dwg 3 ...

Page 166: ...ssories on the engine and the position designations are as shown on the Dwgs 2 and 3 Designations of the connecting plugs presented on the diagram XS1 XS12 XS14 XS15 and XP1 are marked on the engine plugs The connection diagram of the coils of CRL 3 1 CRL 3 1 K CRL 3 1 A speed pick ups with the ZK 5 coupling Connection diagram of the engine electric accessories version 1 Dwg 4 ...

Page 167: ... on signaling device of the engine icing protection system 14 Electric starter 15 Terminal board of the starter leads 16 Electromagnetic control valve of the engine icing protection system 17 Main engine contact connector 18 Electric collector engine electric system 19 Ignition unit 20 Electromagnetic control valve of the air bleed from behind compressor Vl th stage 21 Engine operation time counte...

Page 168: ...ed on the diagram XS1 XS12 XS14 XS15 and XP1 are marked on the engine plugs The connection diagram of the coils of CRL 3 3 CRL 3 3K CRL 3 3A speed pick ups with the FDBA coupling Connection diagram of the engine electric accessories version 2 Dwg 4a 1997 02 28 72 02 00 Page 10a Export Control Classification PL UE 9E999 Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE ...

Page 169: ...rn on signaling device of the engine icing protection system 14 Electric starter 15 Terminal board of the starter leads 16 Electromagnetic control valve of the engine icing protection system 17 Main engine contact connector 18 Electric collector engine electric system 19 Ignition unit 20 Electromagnetic control valve of the air bleed from behind compressor Vl th stage 21 Engine operation time coun...

Page 170: ... is equipped with the accessories and instruments ensuring the dependable and stable operation under different climatic conditions The helicopter may operate with one engine in the emergency cases The engines are mutually interchangeable B The engine and its main assemblies 1 Engine a Designation PZL 10W b Type Turbine with free power turbine 2 Compressor a Type axial centrifugal b Direction of ro...

Page 171: ...rive data of the accessories installed on the engine are listed in the Table 1 E Engine thermodynamic parameters and performance 1 Engine characteristic corrected to the standard atmospheric conditions at V 0 H 0 acc to ISA is presented in the Table 2 2 Engine reaches the maximum power levels at particular ratings at the conditions presented in the 72 02 00 ADJUSTMENT TEST item 1 E 3 Air bleed tur...

Page 172: ...n decrease of the power by 40 kW 55 kM 54 HP decrease of the N1 by 0 2 and increase of the CTOT by 24 K 24 C 43 F NOTE The data presented in item 3 should be treated as an approximation only they relate to the engine operation condition at the altitude H 0 according to ISA and they subject to change together with the changes of the ambient temperature and altitude F Accessories and fuel system par...

Page 173: ... 02 kGm 88 5 lbs in 4 Limiter of the power turbine rotational speed a Designation ALRT 2B b Rotation direction and ratio see Table 1 c Limitation levels of the power turbine rotational speed I Basic level at automatic limitation beginning109 2 engine control with full operation115 2 assistance of the electronic limiter unit II Emergency level at manual limitation beginning 102 2 engine control wit...

Page 174: ...imum linear change corrected rotational speed of the from 74 5 0 75 at N2 108 turbocompressor to 81 0 0 75 at N2 95 g Limitation levels of the power turbine rotational speed I Rated maintained value of the rotational 100 speed II Range of the rotational speed shifted 5 by the pilot in relation to the rated value subitem I III Engine emergency automatic shutdown at 120 the power turbine rotational ...

Page 175: ...t 5 V of the electronic torquemeter unit b Torque on the torquemeter 780 Nm shaft 79 6 kGm 575 lbs ft c Torque on the engine output 272 Nm shaft 27 7 kGm 201 lbs ft j Limitation levels of the compressor turbine outlet temperatures I During engine starting 953 K 680 C 1256 F N1 45 II At TAKE OFF rating 998 K 725 C 1337 F III At 30 min OEI 1008 K 735 C 1355 F IV At 2 5 min OEI 1043 K 770 C 1418 F V ...

Page 176: ...operation I For the synthetic oils 353 383 K 80 110 C 176 230 F II For the mineral oils 333 343 K 60 70 C 140 158 F III Minimum and maximum see 71 02 00 during the starting and ADJUSTMENT TEST running at the ratings 8 Pressure oil pump a Type gear one section 9 Fine oil filter with the filter chocked indicator a Type reticulated b Net mesh size 0 04 mm 0 01 6 in c Filter pressure drop causing 108 ...

Page 177: ...difference causing the 10 5 kPa opening of the shut off valve in 0 1 0 05 kG cm 2 the scavenging main 1 4 0 7 psi H Accessories and starting system parameters 1 Climate altitude parameters see 71 02 00 and starting procedures ADJUSTMENT TEST 2 Feeding sources see the Helicopter Maintenance Manual 3 Starter a Type electric powered with direct current b Designation CT 107B 4 Igniter a Type inductive...

Page 178: ...ng button pushing 1 5 I At the normal and false starting 34 0 8 s 1 0 II At the normal and false starting 24 0 65 s 9 Starting quantity from the 50 Ahr 4 airborne batteries charged to 75 10 Interval between subsequent starter 3 minutes engaging no shorter than I Accessories and air and icing protection system parameters 1 Electromagnetic valve of the icing protection system a Designation MKT 4 2A ...

Page 179: ...t separator 0 11 kg s 0 24 Ibs s 7 Operation ranges of the air bleed valve from behind compressor Vl th stage a Valve is open at the corrected 79 4 1 6 turbocompressor rotational speed below b Valve is closed at the corrected 86 4 1 6 turbocompressor rotational speed above c Alternative operation in the range 79 4 86 4 1 6 of the corrected turbocompressor rotational speed the valve is closed or op...

Page 180: ...box Clockwise looking from the engine rear 0 1263 1 3 Pressure oil pump Front wall of the accessory drive box Counterclockwise looking from the engine front 0 1263 1 I 4 Scavenge oil pump Rear wall of the accessory drive box Clockwise looking from the engine rear 0 1263 1 5 Pick up of the turbo compressor rotational speed Front wall of the accessory drive box Clockwise looking from the engine fron...

Page 181: ... h g KM h Ibs HP hr 2 5 min OEI 846 1150 1134 30 min OEI 736 1000 986 94 7 1 943 670 1238 TAKE OFF 662 900 888 92 6 1 923 650 1202 364 268 0 598 MAXIMUM CONTINUOUS 574 780 770 90 2 1 893 620 1 148 378 278 0 621 FLIGHT IDLE 51 70 69 minimum GROUND IDLE 125 170 168 max 90 5 kg h 198 11 lbs hr NOTES 1 The parameter value are showed for the engine operation conditions at switched off air bleeds for th...

Page 182: ...urbocompressor rotor 2 Indications of the main rotor rotational speed indicator at Nr 100 255 7 rpm of the main rotor speed relates to 22490 rpm of the power turbine rotor for the accessories driven by the power turbine rotor Engine kinematic diagram Dwg 5 1992 08 28 72 02 00 Page 23 Export Control Classification PL UE 9E999 Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE ...

Page 183: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 72 02 00 1992 08 28 Page 24 Export Control Classification PL UE 9E999 This page left blank intentionally ...

Page 184: ...f PZL 10W engine No ASSEMBLY NAME DWG NUMBER Airworthiness limitations MAXIMUM SERVICE LIFE MAXIMUM SERVICE LIFE IN OPERATING HOURS hr MAXIMUM SERVICE LIFE IN CYCLES No of cycles COMPRESSOR 1 Front shaft 19 11 0007 2000 3000 1a Front shaft introduced in 1997 19 11 0261 7800 11630 2 Disc II stage 19 11 0008 15000 22500 3 Disc III stage 19 11 0009 15000 22500 4 Disc IV stage 19 11 0011 15000 22500 5...

Page 185: ...een Overhaul TBO period for each life limited part assembly several 2 5 minute OEI rating excursions are allowed on condition that single operating time at this level does not exceed 2 5 min and accumulated operating time at this rating does not exceed 15 min for the rating limitation according to item 3 2 Using the 30 minute OEI rating a After using the 30 min OEI no special maintenance is necess...

Page 186: ... by the signals from the torquemeter electronic unit Recording starts when the engine reaches appropriate levels of torque and stops when the levels decrease 4 For the counter with four counter windows one of its windows shows total operation time at both OEI ratings This is why in case of using of the 2 5 min OEI rating the operation time at this rating measured with the airborne time recorder sh...

Page 187: ...and operation time with this counter shall be totalized Read the readings of the new installed counter and record them in the engine log book as initial The initial readings shall be taken into account at the later readings of the counter indications A user is not able to cancel or to set the indications of the operation time counter 6 In case of any damage of the counter monitor and note the cons...

Page 188: ...0 72 02 00 Page 29 Export Control Classification PL UE 9E999 Counter example indications Starting quantity 925 Total engine operation time 367 01 hr TAKE OFF rating operation time 20 40 hr OEl ratings operation time 0 41 hr Operation time counter with four windows Dwg 6 ...

Page 189: ...ntrol Classification PL UE 9E999 Counter example indications Starting quantity 925 Total engine operation time 367 01 hr TAKE OFF rating operation time 20 40 hrj 30 min OEI rating operation time 0 41 hr 2 5 min OEI rating operation time counter 0 13 hr Operation time counter with five windows Dwg 7 ...

Page 190: ...umulated time at the 2 5 min OEI rating and limitation of number of events this OEI rating is applied 6 The calendar period of service operation before the next overhaul B Values of TBO service life of PZL 10W engines 1 The TBO of PZL 10W engines of series 1 and 2 to the first overhaul and then after subsequent overhauls is 1500 hours 2250 start stop cycles The calendar period of operation is 8 ye...

Page 191: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 72 02 00 2009 07 10 Page 32 Export Control Classification PL UE 9E999 This page left blank intentionally ...

Page 192: ...f the compressor turbine rotational speed N1 no increase of both N1 and compressor turbine outlet temperature CTOT after engine light up 5 Hot suspension of the compressor turbine rotational speed N1 no increase or slow to accelerate N1 but gas temperature CTOT increases rapidly after engine light up 6 Starter disconnects to early 7 Starter disconnects to late or does not disconnect B Engine opera...

Page 193: ...2 Engine acceleration too long 13 Engine parameter fluctuations 14 Exceeding permitted operational tolerances for individual limiters of fuel control system 15 Chips on fine filter of fuel control pump D Oil System 1 Fluctuating Oil Pressure 2 Oil pressure lower than required 3 CHIPS signal lamp lights on 4 Oil leakage from compressor front bearing 5 Excessive oil consumption 6 Oil temperature inc...

Page 194: ...rrect the trouble C When the trouble has been corrected then engine operation test shall be performed to ensure the proper trouble correcting No more troubles 3 Table Collection of Diagnostic Procedures to localize and correct the engine troubles A Engine Starting 1 No indications of the compressor turbine rpm N1 after pushing the START button a Possible causes break in starter power supply main f...

Page 195: ...No Yes Yes No Yes REMOVE STERTER IS THE COUPLING CORRECT RECTIFY FAULT OF N1 TACHOMETER INDICATING SYSTEM EXCHANGE THE STARTER FOR NEW ONE acc 80 02 00 REMOVAL INSTALATION item 1 IS STARTER SHAFT SHEARED EXCHANGE THE COUPLING FOR NEW ONE acc 80 02 00 REMOVAL INSTALATION items 1 and 3 EXCHANGE THE STARTER FOR NEW ONE acc 80 02 00 REMOVAL INSTALATION item 1 ...

Page 196: ... turbine rotor rotation b Schematic procedure No Yes No Yes No Yes CHEC STARTER POWER SUPPLY VOLTAGE IS IT CORRECKT ADJUST THE AIRPORT POWER SUPPLY VOLTAGE OR EXCHANGE THE AIRBIRNE BATTERIES CHECK ELECTRICAL POWER SUPPLY AND STARTER ELEKTRICAL CONNECTIONS IF THEY ARE GOOD IS POWER SUPPLY CIRCUIT CORRECT RECTIFY POWER SUPPLY FAULT HAND CRANK THE COMPRESSOR ROTOR CHECK FOR EXCESSIVE RESISTANCE OF RO...

Page 197: ...PPLY TO THE PLUG DURING THE FALSE START IS THE MAIN FUEL DELIVERED DOES IT FLOW FROM THE OUTLET DUCT CHECK THE ELECTRIC CONNECTIONS IN STARTING FUEL VALVE ELECTRIC CIRCUIT IF THERE IS A BREAK IN THIS CIRCUIT CHECK THE FILTER AND ATOMIZER CONDITION IN THE STARTING FUEL NOZZLE acc to 80 02 00 REMOVAL INSTALLATION item 5 AND SPARK PLUG FUNCTIONING acc to 80 02 00 INSPECTION CHECK item 1 EXCHANGE THE ...

Page 198: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 72 02 00 Page 107 Export Control Classification PL UE 9E999 ...

Page 199: ...system a leak of the pipe line leading the air from the combustion chamber shield to the fuel metering pump maladjustment or a malfunction of the fuel metering pump too early closing of the air bleed valves on the combustion chamber at extremely low ambient temperatures b Schematic procedure NOTE Before taking a decision to change the fuel metering pump check acc to 75 32 00 item B what kind are t...

Page 200: ... increases rapidly after the fuel lighting up a Possible causes incorrect starter operation leaks in engine air bleed manifolds failure of the combustion chamber drain valve defects of the air bleed valve from behind compressor VI stage damages of the compressor turbine blades a leak of the combustion chamber air bleed too late closing of the air bleed valves on the combustion chamber at exremely ...

Page 201: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 72 02 00 1997 07 15 Page 110 Export Control Classification PL UE 9E999 Item 5 continuance Yes ...

Page 202: ...NE 1992 08 28 72 02 00 Page 111 Export Control Classification PL UE 9E999 6 Starter disconnects to early a Possible causes relays box failure electronic limiter unit defect à fault in the starting circuit of helicopter electric manifold b Schematic procedure ...

Page 203: ...1992 08 28 Page 112 Export Control Classification PL UE 9E999 7 Starter disconnects too late or does not disconnect a Possible causes no signal from N1 rotational speed pick up electronic limiter unit failure defects in helicopter electric manifold b Schematic procedure ...

Page 204: ... 113 Export Control Classification PL UE 9E999 B Engine operation 1 Increased vibration level a Possible causes defects in the vibration measurement and increased vibration signaling system abnormalities in the engine settlement and mounting failures in the engine b Schematic procedure ...

Page 205: ... steady state engine ratings N1 and CTOT values are lower than the levels of limiter actuation a Possible causes leaks in the helicopter manifolds of the engine air bleeds leaks on the case connections and at the air bleed stubs in the compressor and combustion chamber assemblies contamination of the compressor air flow path damages of the air flow path elements b Schematic procedure ...

Page 206: ...02 00 Page 115 Export Control Classification PL UE 9E999 3 Engine does not reach the maximum power levels a Possible causes N1 maximum speed or maximum CTOT limiter actuation too low fuel delivery to the engine inappropriate adjustment of the N2 limiter b Schematic procedure ...

Page 207: ...1992 08 28 Page 116 Export Control Classification PL UE 9E999 4 Too short rundown time after engine shutdown a Possible causes compressor turbine rotor or accessory gear box bearings begin to seize a galling of the compressor turbine rotor elements b Schematic procedure ...

Page 208: ...em A 2 Power turbine rotational speed N2 governor does not operate a Possible causes fuel metering pump electrohydraulic valve slide is blocked in hand control position N2 pick up is damaged in the control circuit inlet air temperature OAT pick up is damaged electric connection failures between the pick ups and electronic limiter unit and fuel metering servovalve electronic limiter unit defective ...

Page 209: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 72 02 00 1922 08 28 Page 118 Export Control Classification PL UE 9E999 Item 2 continuance ...

Page 210: ...N1 compressor turbine rotational speed a Possible causes fuel metering pump electrohydraulic valve slide is blocked in hand control position N1 pick up damaged electric connection failures between N1 pick up and electronic limiter unit and fuel metering servovalve electronic limiter unit out of order fuel metering pump defective b Schematic procedure ...

Page 211: ...CTOT compressor turbine outlet temperature a Possible causes electrohydraulic valve is blocked in the fuel metering pump damages in electric line from thermocouple board to electronic limiter unit electronic limiter unit failure fuel metering pump failure thermocouple board defect thermocouple failure thermocouple manifold fault b Schematic procedure ...

Page 212: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 72 02 00 Page 121 Export Control Classification PL UE 9E999 Item 4 continuance ...

Page 213: ...ump electrohydraulic valve slide is blocked in hand control position Tor pick up in the helicopter main gear box damaged phase torquemeter electronic unit failure electric connection damages between torquemeter pick up and torquemeter electronic unit and electronic limiter unit and fuel metering pump servovalve electronic limiter unit defective fuel metering pump out of order b Schematic procedure...

Page 214: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 72 02 00 Page 123 Export Control Classification PL UE 9E999 Item 5 continuance ...

Page 215: ...E 9E999 6 Power turbine safety system does not shutdown the engine a Possible causes N2 pick up in emergency circuit damaged electric connection damages between emergency N2 pick up and electronic limiter unit and fuel metering pump shut off solenoid valve fuel metering pump solenoid valve out of order b Schematic procedure ...

Page 216: ...not close a Possible causes pick up s damages OAT or Nt pick up air bleed control valve damage electric connection between pick ups OAT or N1 and electronic limiter unit and air bleed control valve electronic limiter unit defective leaks of the pipe lines delivering the air from behind compressor to the air bleed control valve and to the air bleed valve b Schematic procedure ...

Page 217: ...00 1992 08 28 Page 126 Export Control Classification PL UE 9E999 8 Compressor 6th stage air bleed valve does not open a Possible caused cracked spring in the valve valve piston seizing in closed position due to another valve element deterioration b Schematic procedure ...

Page 218: ...cation PL UE 9E999 9 Engine deicing system does not function a Possible causes electric connection damages in electrovalve actuation circuit of deicing system or its damage deicing valve damage leakage of the pipe line supplying the air from the combustion chamber shield to the deicing valve b Schematic procedure ...

Page 219: ...tion damages between the torquemeter pick ups and torque electronic unit and electronic limiter units of both engines electronic limiter unit of one or both engines is inefficient OAT pick ups failures in the engine inlet potentiometer or circuit malfunctions in the regulating point change system of the engine power turbine speed governor torquemeter system defective b Schematic procedure ...

Page 220: ...2 02 00 Page 129 Export Control Classification PL UE 9E999 11 No power turbine rotational speed limitation when the engine is manually controlled a Possible causes N2 limiter change mechanism failures N2 limiter damages N2 limiter drive gearbox damages b Possible procedure ...

Page 221: ... 28 Page 130 Export Control Classification PL UE 9E999 12 Engine acceleration too long a Possible causes leaks in the engine gas flow path leak of the pipe delivering the air from combustion chamber shield to fuel metering pump fuel metering pump failures b Schematic procedure ...

Page 222: ...ks in the fuel control system electric connection damages between particular pick ups N1 OAT Tor N2 CTOT and electronic limiter unit and fuel metering pump s ervovalve N1 and OAT and Tor and N2 and CTOT pick up damages electronic limiter unit failure fuel metering pump defective engine running at the range when the air bleed valve behind compressor VI stage is opened b Schematic procedure ...

Page 223: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 72 02 00 1992 08 28 Page 132 Export Control Classification PL UE 9E999 Item 13 continuance ...

Page 224: ... 72 02 00 Page 133 Export Control Classification PL UE 9E999 14 Exceeding permitted operational tolerances for individual limiters of fuel control system a Possible causes electronic limiter unit failures fuel metering pump or N2 limiter malfunctions b Schematic procedure ...

Page 225: ...ENGINE 72 02 00 1992 08 28 Page 134 Export Control Classification PL UE 9E999 1 5 Chips on fine filter of fuel metering pump a Possible causes external from the helicopter tank internal pump assembly damages in the fuel metering pump b Schematic procedure ...

Page 226: ...W ENGINE 1992 08 28 72 02 00 Page 135 Export Control Classification PL UE 9E999 D Oil system 1 Oil pressure fluctuations a Possible causes small oil quantity in the oil tank fine oil filter contaminated oil delivery pump defective b Schematic procedure ...

Page 227: ...2 02 0 1992 08 28 Page 136 Export Control Classification PL UE 9E999 2 Oil pressure lower than required a Possible causes oil fine filter contamination oil delivery pump malfunction internal pump leakages spring crack in the reduction valve b Schematic procedure ...

Page 228: ...L 10W ENGINE 1992 08 28 72 02 00 Page 137 Export Control Classification PL UE 9E999 3 CHIPS signal lamp lights on a Possible causes engine chipping shorting of the chip indicator by single chip malfunction of the signal circuit b Schematic procedure ...

Page 229: ...ngine some time after the engine shutdown oil level in the tank too high positive air pressure in the i oil tank oil delivery pump shaft sealing failure shut off valve leak at the oil delivery pump outlet upper oil nozzle plugging in the accessory drive gearbox The oil leakage during the engine operation or immediately after shutdown front bearing labyrinth sealing malfunction oil scavenge pump fa...

Page 230: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 72 02 00 Page 139 Export Control Classification PL UE 9E999 Item 4 continuance ...

Page 231: ... Control Classification PL UE 9E999 5 Excessive oil consumption a Possible causes leakages in engine oil system at element connections belonging to the system engine internal leakages labyrinth sealing and oil scavenge pump failures permanent leak in another oil system point b Schematic procedure ...

Page 232: ...xport Control Classification PL UE 9E999 6 Oil temperature increase a Possible causes abnormalities in the airframe oil system thermostat failure carbon deposited oil passage in the or contaminated air passages in the cooler fan or air duct in the cooling system damaged b Schematic procedure ...

Page 233: ...ication PL UE 9E999 7 Sheet 1 of 3 Chips in oil present on filter and magnetic plugs a Possible causes oil pump failures the chips may be aluminum or bronze or steel excessive wear of the gear teeth or rolling bearing elements in the engine steel chips contaminated oil poured into the tank b Schematic procedure ...

Page 234: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 72 02 00 Page 143 Export Control Classification PL UE 9E999 Item 7 continuance Sheet 2 ...

Page 235: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 72 02 00 1992 08 28 Page 144 Export Control Classification PL UE 9E999 Item 7 continuance Sheet 3 Cont d from Sheet 1 ...

Page 236: ...elivering the air to the power turbine labyrinth sealing Are there any abnormalities leaks significant dents Remove the failures 1 Drain off the oil from oil space of the power turbine bearings 2 Remove oil drain tube Is the oil flowing from the strut Inspect oil drain tube Are there any abnormalities cracks ends with sealing rings deformations Yes 1 Check condition of the gauze filter in tube ass...

Page 237: ...0 Str 146 Export Control Classification PL UE 9E999 Item 8 continuance 1 2 3 4 Yes No Do 10 min engine test run on the ground at ratings from Flight Idle to Max Continuous Is there oil in engine exhaust after stopping the engine Send engine for repair Continue operation of engine ...

Page 238: ... Control Classification PL UE 9E999 9 Fine filter contamination indicator in outside position a Possible causes contaminations which have entered to the engine oil system from outside contaminations having their source inside the engine filter contamination indicator failure b Schematic procedure ...

Page 239: ...lization 3 Table 203 Spare parts B Preparation and use of KH 1 leak stopper specified in the Table 202 item 9 1 KH 1 leak stopper see Table 202 item 9 designed for sealing the flange connections and parting planes of parts and units working in the range of temperatures up to 218 923 K 55 up to 650 C 67 up to 1202 F Leak stopper consists of the following ingredients see Table 202 item 9 in the weig...

Page 240: ...ling see Table 202 item 9 with use of brush spreading it uniformly on the whole surface Dry the surfaces covered with leak stopper at room temperature for 15 20 minutes and next install the connected parts Remove immediately the outflows of leak stopper bruises on screws threads and threaded holes with use of rag saturated with toluene see Table 202 item 37 NOTE Carry out the test of connection s ...

Page 241: ...ace of given part with use of brush or sprayer Next dry the part in the air for 15 30 minutes and next warm it at temperature 468 488 K 195 215 C 383 419 F for 1 hour After cooling the part to the room temperature put on the second layer of enamel and apply the same drying procedure that was described above Put on the third layer only if it is specified in the requirements for the given part D Use...

Page 242: ...opper with use of dry rags or after its curing with use of soft scraper NOTES 1 Time since putting on the leak stopper until start of installation should be about 10 20 minutes and until end of installation not more than 70 minutes 2 Carry out the test of connection s tightness if it is required in the time after end of installation that is not shorter than 10 hours E Use of the HYLOMAR L leak sto...

Page 243: ...rfaces prepared for sealing see Table 202 item 45 with use of brush with short hair spreading it uniformly on the whole surface In the case of the connections where there is a risk of outflow of leak stopper to the interior of installed unit internal channels leave the band of 1 3 mm width from the internal edges that is free of leak stopper on the adhering surface If washer is used in the connect...

Page 244: ... A 8 Feelers 0 8 1 2 Local supplier 9 x4 magnifying glass Local supplier 10 RWZK 47R Torque spanner Pratt Whitney Rzeszów S A 11 RWEz 46R Socket Pratt Whitney Rzeszów S A 12 RWEt 88R Socket Pratt Whitney Rzeszów S A 13 RWSh 234R Socket Pratt Whitney Rzeszów S A 14 RWEd 57R Socket Pratt Whitney Rzeszów S A 15 RWEZ 6R Socket Pratt Whitney Rzeszów S A 16 RWEZ 7R Socket Pratt Whitney Rzeszów S A 17 RW...

Page 245: ...arbox of sets drives Pratt Whitney Rzeszów S A 31 RWFd 5R Hand wheel for turning the pump of fuel regulator Pratt Whitney Rzeszów S A 32 Burner Local supplier 33 Permanent magnet Local supplier 34 Electrical soldering iron Local supplier 35 Watch glass Local supplier 36 White porcelain plate for spot test analysis Local supplier 37 MDXd 3476R Gauge for measurement of axial play in the fixing pin c...

Page 246: ...afty ul Łukasiewicza 1 31 429 Kraków Poland Nyco SA France 2 Oil for inner preservation of the fuel system MK 8 MS 8P TK transformer transformer CastrolAero GT11 AeroSheil Turbine Oil3 Brayco 460 AeroShell Turbine Oil2 TurboNycoii 3546 Jet engine oil 15 Avrex M Turbo 201 1010 ГOCT 6457 66 OST 38 01163 78 ГOCT 982 80 PN 72 C 96058 DERD 2490 DERD 2490 MIL L 6081C Grade 1010 MIL L 6081C Grade 1010 MI...

Page 247: ...NIGER C 153 Manufacturer s standard 73 80 DERD 2485 British Petroleum 73 KFF MC 34 MO 754 234 Sweden 73 80 ONOR M S 1104 Austria AA M C 102d Italy IS 1604 India 5 Grease ЖС И18 013 NK 50 BN 74 0536 21 CPN Rzeszów ul Ujejskiego 3 35 205 Rzeszów Poland AeroShell Compound 08 MIL T 5544B Shell Braycote 655 MIL T 5544 Castrol 6 Grease ЦИАТИМ 201 ГОСТ 6267 74 CPN Warszawa Państwowe Przedsiębiorstwo Użyt...

Page 248: ...wder Composition in accordance with WT Pratt Whitney Rzeszów S A Instruction no 01 6 247 Zakł Chemiczny Silikony Polskie Sp z o o ul Chemików 1 37 310 Nowa Sarzyna Polskie Odczynniki Chemiczne S A ul Sowińskiego 11 44 101 Gliwice Sigma Aldrich Sp z o o ul Szelagowska 30 61 626 Poznań Merck Sp z o o Al Jerozolimskie 178 02 486 Warszawa Address as above 10 Enamel see clause 3 C S 21 8 Specifications...

Page 249: ...land 14 Abrasive compound ACM 7 5 H BOT ГОСТ 25593 83 PHZ CENZIN Spółka z o o ul Frascati 2 00 489 Warszawa Poland 15 Polishing powder M20 lub M10 ГОСТ 3647 80 PHZ CENZIN Spółka z o o ul Frascati 2 00 489 Warszawa Poland 16 Abrasive paper 3Э 820x50 ЛОГ 15A 3 HMA NSHa Nr 800 ГОСТ 5009 82 Klinspor Germany 17 Needle file RPJe M ГОСТ 1513 ZN 76 MPM KPN 035707 KPN VIS Bydgoska Fabryka Narządzi 18 Hair ...

Page 250: ...lskie Odczynniki Chemiczne ul Sowińskiego 11 44 100 Gliwice Poland 25 Emulsol SA ZN 69 MPCH 0 74 33 Łódzkie Zakłady Chemiczne ul Ciasna 21 a 93 531 Łódź Poland 26 Fuel in use see 71 02 00 ADJUSTMENT TEST item 1 A Local supplier 27 Acetone Industrial Local supplier or Polskie Odczynniki Chemiczne ul Sowińskiego 11 44 100 Gliwice Poland 28 Ammonium nitrate 10 Local supplier or Polskie Odczynniki Che...

Page 251: ...100 Gliwice Poland 32 Acid ammonium fluoride crystalline Local supplier or Polskie Odczynniki Chemiczne ul Sowińskiego 11 44 100 Gliwice Poland 33 Hydrofluoric acid technical Local supplier or Polskie Odczynniki Chemiczne ul Sowińskiego 11 44 100 Gliwice Poland 34 Sulphuric acid concentrated Local supplier or Polskie Odczynniki Chemiczne ul Sowińskiego 11 44 100 Gliwice Poland 35 Hydrogen peroxide...

Page 252: ... Manufacturer s specification GALLO EX Spółka z o o PL 61 752 POZNAŃ ul Grochowe Łąki 6 41 ARDROX 6367 Manufacturer s specification Britain Engineering Ltd po Box 367 509 Footscray Road London SE9 3UJ United Kingdom 42 Leak stopper Loctite 5920 Manufacturer s specification Loctite Ireland Tallaght Business Park Whitestown Dublin 24 Distributor Henkel Polska Sp z o o Ul Domaniewska 41 02 672 Warsza...

Page 253: ...96 16 Securing nut 89 04 0638 17 Lock washer 19 41 5028 18 Lock washer 17 41 0087 19 Gasket 19 42 2137 20 Seal ring 89 29 2832 21 Seal ring 89 29 1425 22 Seal ring 89 29 3231 23 Shim 19 62 2011 2014 24 Securing nut 89 04 0648 25 Seal ring 19 71 0035 26 Gasket 19 71 2042 27 Seal ring 89 29 2826 28 Gasket 19 71 2043 29 Filter element 19 71 0150 30 Seal ring 89 29 3056 31 Seal ring 89 29 2969 32 Seal...

Page 254: ...W Rzeszów S A 71 Draining valve 19 31 0010 72 Washer 19 82 0096 73 Seal ring 19 11 0165 74 Protective ring 89 27 1864 75 Valve for air bleed from behind the compressor on KS 19 31 0530 76 Spring 19 11 0111 77 Gasket 19 11 0232 78 Screw 19 31 0138 79 Orifice 19 82 0191 80 Spring Washer 89 06 0879 81 Cotter pin 89 06 1666 82 Seal ring 89 29 1422 83 Seal ring 89 29 1428 84 Seal ring 89 29 1426 85 Nut...

Page 255: ...If it is necessary to store an engine for a longer period than the defined one as the first make engine unpacking and depreservation see 72 02 00 ENGINE SERVICING item 4 and next follow the procedure specified for a specific type of storing 3 Enter information about these operations related to engine storage A Storage of the Engine Packed by its Manufacturer The engine packed in a box by Manufactu...

Page 256: ...iolet according to the colour scale perform the following operations a Unpack the engine removing the container top cover cut the foil protective envelope just near the seam b Replace the silica gel desiccant bags as well as silica gel indicator receptacles for new or regenerated ones c Pack the engine into the foil protective envelope original or new one d Hot weld he foil protective envelope and...

Page 257: ...D period C Storage of the Engine Installed on Helicopter up to 3 months 1 Inspect the engine see 71 02 00 ADJUSTMENT AND TESTS item 2 and if necessary wash the compressor see 71 02 00 CLEANING AND PAINTING item 1 2 Preserve the fuel system see item 5 C oil system see item 5 B and compressor see item 5 D 3 Clean external surfaces with a clean rag soaked with washing medium see Table 202 item 4 and ...

Page 258: ...rnal preservation of the engine see item 5 E 5 Wrap the engine with two layers of paraffin paper and cover the box with the container top cover 6 Store the container with the engine inside in a closed space at the temperature of 283 K to 308 K 10 C up to 35 C 50 F to 95 F CAUTION TEMPERATURE FLUCTUATION RESULTING IN CONDENSATION OF WATER VAPOUR IN THE STORAGE ROOM IS NOT PERMITTED F Storage of the...

Page 259: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 2002 04 30 72 02 00 Page 303b Export Control Classification PL UE 9E999 THIS PAGE IS LEFT BLANK INTENTIONALLY ...

Page 260: ...epreservation of Engine A General information Engine is packed into manufacturer s shipping container see Fig 301 The container with the engine shall be lifted by means of lifting cord fixed to four container s shipping eyes 3 using a hoist of lifting capacity no less than 9 8 kN 1000 kG 2205 lb NOTE The tool bag is added only to the engines having even numbers Therefore for proper normal operatio...

Page 261: ...ir inlet duct to fire antifire shield c Power turbine shaft d Exhaust nozzle e Compressor Vl th stage air bleeding valve outlet 10 Inspect the engine in order to make sure that there is no external damages if it is free from any mechanical defects damages Check the preservation validity period according to attached documents check if the airborne tool bag and single set of spare parts are complete...

Page 262: ...tton cloth and dry the engine on air during 10 15 minutes c Perform external inspection of the engine 2 Internal Depreservation of Engine NOTES 1 If the compressor was preserved then during depreservating the engine interior perform one cycle of performance recovery washing see 71 02 00 POWER PLANT CLEANING AND PAINTING item 1 E 3 2 Perform operations related to engine internal depreservation in d...

Page 263: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 72 02 00 2015 12 30 Page 306 Export Control Classification PL UE 9E999 ...

Page 264: ...n ground idle rating until the temperature in the tank reaches 333 K to 343 K 60 C 70 C 1 40 F to 1 58 F but no shorter than 3 5 minutes h Shutdown the engine see 71 02 00 ADJUSTMENT AND TESTS item 3 G i Inspect and wash oil filter see 79 02 00 CLEANING AND PAINTING item 2 B j Inspect and wash magnetic plugs see 79 02 00 CLEANING AND PAINTING item 2 C k Replenish oil in the oil tank see 70 02 00 S...

Page 265: ...2 02 00 1992 08 28 Page 308 Export Control Classification PL UE 9E999 1 Box for documentation 6 Nut 2 Window on container top cover 7 Screw 3 Shipping eye 8 Shipping container base 4 Container top cover 9 Lead seal 5 Inspection opening Shipping container Dwg 301 ...

Page 266: ...zów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 72 02 00 Page 309 Export Control Classification PL UE 9E999 1 3 Eyes for lifting of engine 2 4 Engine mounting support 5 Lifting sling Engine s mounting points Dwg 302 ...

Page 267: ...RNALLY PRESERVED MOTORING OF TURBOCOMPRESSOR ROTOR AS PER WET MOTORING CYCLE IS FORBIDDEN IN ORDER TO AVOID DEPRESERVATION OF FUEL SYSTEM 5 During internal preservation of fuel system or and preservation of gas air duct engine oil system should be feed with oil NOTE You can integrate connect the operations of internal preservation of oil and fuel system as well as compressor preservation In that c...

Page 268: ... 202 item 2 NOTE At ambient air temperature lower than 283 K 10 C 50 F preheat preservative oil to temperature of 333 K to 343 K 60 C to 70 C 140 F to 1 58 F 4 Swith on the oil pressure pump in preservation unit setting up the pressure within the range of 78 kPa to 1 8 6 kPa 0 8 kG cm 2 to 1 9 kG cm 2 1 1 4 psi to 27 0 psi 5 Perform the operations as for venting of fuel system see 73 22 00 SERVICI...

Page 269: ...t 7 Inspect compressor inlet and remove excess of protective oil using cotton cloth 8 Install dust separator assembly in accordance with helicopter maintenance manual 9 Install the protective covers on engine inlet and outlet 10 Record performed preservation in engine log book NOTE To depreserve the engine one may also use the compressor wash device filling the rinse solution tank with protective ...

Page 270: ...the engine and accessories using the cloth soaked with benzin see Table 202 item 4 and then dry on air 8 Touch up painted damaged areas using lacquer see Table 202 item 1 3 of the same colour which was used for original painting of the part 9 Using a brush apply the protective compound see Table 202 item 1 on washed and corrosion nonresist areas of the engine a parts assemblies and components of e...

Page 271: ...he engine shall not be longer than 1 hour NOTE If the engine is packed in room at higher air humidity than 70 record that fact in engine documentation engine assembly route sheet B Preparation Work Operations Prepare materials and aids necessary for packaging 1 foil protective envelope 2 paraffin paper 3 silica gel desiccant bags 20 pcs 300 g 10 6 oz each 4 humidity indicators with silica gel indi...

Page 272: ...crew being on the mounting rods made a final positioning and restraint of the engine in relation to the container base Secure adjusting screw by lock nuts 11 Dispose the silica gel desiccant bags in the following places on the engine a in exhaust nozzle having removed 3 pcs the protective cover b in engine inlet having removed 3 pcs the protective cover c on combustion chamber 2 pcs d near fuel me...

Page 273: ...ed engine stay for 2 3 hours in order to check the tightness of the envélope Tightness of the envelope consist in keeping maintaining negative pressure inside it what is checked by slightly drawing the envelope by fingers from the engine s surface NOTE Untight envelope shall be replaced by new one or tighten by heat sealing or gluing 21 Place the bag with tool kit into foil bag and heat seal it Th...

Page 274: ... 5 Immediately after heating them up place silica gel desiccant bags in suitable defined places on engine see item 6 C subitem 11 B Reactivation of Silica gel Indicator NOTE Silica gel indicator intended for reactivation can not be greasy or oiled 1 Pour silica gel indicator on clean aluminium or steel frying pan for layer max 3 c m 1 2 in 2 Heat up the frying pan with silica gel indicator in elec...

Page 275: ...essory preservation validity period is equel 3 months if the accessory was preserved after its removal from the engine in accordance with item 8 A 2 Accessory preservation validity period is equal 1 year if accessory was preserved internally on the engine see item 5 C ahd externally as per item 8 A subitems 6 to 8 CAUTION THE PRESERVATION OF ACCESSORY REMOVED FROM THE ENGINE SHALL BE PERFORMED WIT...

Page 276: ...tion PL UE 9E999 3 Install the protective covers on accessory electrical connections wrap up in two layers of paraffin paper place in foil protective envelope and tie it up by cord or cloth belt 4 Place the accessory in shipping container together with technical certification and report stating the cause of removal ...

Page 277: ...AINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 72 02 00 Page 401 Export Control Classification PL UE 9E999 ENGINE REMOVAL AND INSTALLATION The removal arid installation of the engine is described in 71 02 00 REMOVAL AND INSTALLATION ...

Page 278: ...MAINTENANCE MANUAL PZL 10W ENGINE 2015 12 30 72 02 00 Page 501 Export Control Classification PL UE 9E999 ENGINE ADJUSTMENT AND TEST The adjustment and test of the engine are described in 71 02 00 POWER PLANT ADJUSTMENT AND TEST ...

Page 279: ...e drained fuel or oil then this condition must not take longer than 24 hours 3 When same services have caused the air to be trapped in the fuel system the venting of it shall be done immediately 4 When same operations have caused the air to be trapped in the oil system then the cold motoring shall be done 5 The engine adjustment points are lead sealed The adjustment points which may be used during...

Page 280: ...s than 25 m 82 ft from the helicopter f to use water for fire extinguishing 2 It is prohibited When the engine starting and testing a to approach the helicopter at the distance less than 15 m 49 ft b to go out from the helicopter cabin c to perform any works outside the helicopter d to use out of order instruments for the engine parameter check e to leave the covers inspection openings power plant...

Page 281: ...he start of the concerned period but at least every 5 calendar days B After flight maintenance includes the procedures which shall be done after the last flight of the day The list of procedures to perform in each of a m groups is presented by the TABLE 601 The sign means that the procedure belongs to this maintenance group TABLE 601 Engine daily inspection No PROCEDURE PERFORMING IN ACCORDANCE TO...

Page 282: ...items 1 2 3 4 5a and b 7 8 9 only When checking the limiters acc to the item 4 B 4 b it is sufficient to check only one of the limiters TOT N1 or TQ When the helicopter is operated regularly at least one flight per day then the engine check in acc to item 4 B subitem 7 at the after flight maintenance is allowed 4 Applies to engines with oil filter contamination indicators 3 Periodic Maintenance Th...

Page 283: ...f settlement and functioning of engine controls HELICOPTER MAINTENANCE MANUAL and 71 02 00 ADJUSTMENT TEST Item 3 A and 5 H 6 7 Compressor blade and vane inspection 72 32 00 INSPECTION CHECK Item 2 E 8 Combustion chamber and whirling injector inspection 72 42 00 INSPECTION CHECK Item 1 Note 3 9 Oil exchange 70 02 00 SERVICING Item 3 Note 1 10 Engine inspection 71 02 00 ADJUSTMENT TEST Item 4 Note ...

Page 284: ...DANCE TO PROCEDURE PERFORMING FREQUENCY 1 Oil exchange 70 02 00 SERVICING item 3 For Castrol Aero 599 and Turbonycoil 699 once per 3 years AeroShell Turbine Oil 555 once per 2 years another oils once per year 2 Operations per items 2 3 4 5 6 9 and 10 of Table 602 Once per 12 months if during this period no 300 hour maintenance was done 5 Special Maintenance at Peculiar Cases This kind of the inspe...

Page 285: ...f main rotor rotational speed when the control lever CL is moved from the ground idle Gl to the flight idle Fl while the power turbine speed governor is working incorrectly find and remove the reason of the abnormality in the functioning of the power turbine speed governor Continue the operation 3 In the case of the emergency power turbine speed limiter actuation as the result of the kinematic con...

Page 286: ...ion of engine compressor airflow duct occurs causing a deterioration of engine performance the compressor washing shall be accomplished periodically acc to 71 02 00 CLEANING PAÍNTING at that time periods as required for keeping the engine performance on satisfactory level in accordance to the helicopter maintenance personnel estimation and acceptance F Flight in the hail conditions It is mandatory...

Page 287: ...ted to be in use and the time accumulated from the previous combustion chamber inspection is 1 00 hrs or more 2 Immediately after termination of the season time of operation when the continuous ignition was used and the next inspection of the combustion chamber follows beyond 100 hrs of engine operation 2 Inspection of the ignition unit refer to Section 80 02 00 STARTING SYSTEM INSPECTION AND CHEC...

Page 288: ...rt two pipes are welded in first with the oil delivery stub 2 and second with oil draining stub 13 The oil from the engine scavenge pump for the dust separator head 1 heating is delivered via the oil delivery stub 2 The oil draining stub 13 drains the oil through the cooler to the oil tank 3 see 79 02 00 Dwg 1 At the lower part of the dust separator head 1 there is the pipe 12 draining the contami...

Page 289: ...ere due to ejection created by the air flowing out the nozzle 9 are sucked in and thrown out via the pipe draining the contaminations 12 to the atmosphere The cleaned air is sucked to the compressor through the ring inlet duct created by the oil tank 3 with dust separator inlet duct 6 and starter shield 7 The engine with the dust separator installed may operate in the icing conditions because the ...

Page 290: ...port Control Classification PL UE 9E999 Designations to the Dwgs 1 and 2 1 Dust separator head 2 Oil delivery stub 3 Oil tank 4 Separator 5 Air delivery pipe 6 Inlet duct 7 Starter shield 8 Engine inlet case 9 Nozzle 10 Drain valve 11 Stub 12 Contamination draining pipe 13 Oil draining stub ...

Page 291: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 72 22 00 1992 08 28 Page 4 Export Control Classification PL UE 9E999 Dust separator head section Dwg 2 ...

Page 292: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 72 22 00 Page 5 6 Export Control Classification PL UE 9E999 Air inlet with the dust separator longitudinal section Dwg 1 ...

Page 293: ...GINE 1992 08 28 72 22 00 Page 401 Export Control Classification PL UE 9E999 AIR INLET WITH DUST SEPARATOR REMOVAL AND INSTALLATION The removal and installation of the air inlet together with dust separator are presented in the Helicopter Maintenance Manual ...

Page 294: ...x discs and six thin wall middle rings connected by the central pulling bolt composing the front part of the compressor shaft The rear compressor shaft part serves as the journal of the compressor rear bearing roller The middle shaft part is used as the inducer disc of the centrifugal part The compressor shaft is made of chromium nickel steel The first compressor disc made of chromium nickel steel...

Page 295: ...e assembly and the vanes of the l st and ll nd stage guide vanes The guide vanes of the l st and ll nd stage are covered with the epoxide enamel to protect against erosion and corrosion There are threaded inspection holes two per vane row one in each of case halves for inspections of the blades of l st and ll nd stage with the help of the fiberscope These holes are plugged with special plugs 17 an...

Page 296: ...19 is fastened to the bearing support The vane diffuser 5 is mounted in the chamber of the inner ring The bearing lubrication is created with help of the injector fastened to the case The oil from the oil main is delivered to this injector The following pipes go through the compressor rear case interior fuel supply 22 oil supply 23 stub of the air bleed for helicopter needs 24 venting pipe of the ...

Page 297: ...ressor Vl th stage 8 Bolt 9 Piston 10 Valve case 11 13 Spring 12 Slide 14 Revolving stub 15 Cover 16 Stub of the valve opening signaling device 17 18 Protection plugs of the inspection holes in the compressor middle case 19 Compressor rear bearing mounting 20 Space filled with the controlling air 21 Condensate draining hole 22 Fuel delivering pipe 23 Oil delivering pipe 24 Stub of the air bleed fo...

Page 298: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 72 32 00 Page 5 6 Export Control Classification PL UE 9E999 Compressor Dwg 1 ...

Page 299: ...Secure installed protective cover with a wire 2 Inspection of Inlet Guide Vanes and Compressor Rotor Blades A General information Engine s construction design as well as the method of its installation on a helicopter allow the inspection of compressor blades in three ways 1 Through inspection opening in compressor air inlet duct That method make possible inspection of inlet guide vanes and l st st...

Page 300: ...n that increased number of damaged blades causes the reduction decrease of compressor efficiency so also deterioration of engine s performance 3 When blending the blades take into consideration that the blending polishing motion shall be done along the blade s airfoil and fillet junction of blended areas shall be smooth CAUTION IF DAMAGES ON THE BLADES ARE WORSE THAN ACCEPTABLE PERMISSIBLE DAMAGES...

Page 301: ...p voltage of 30V 2 It is acceptable to use electric torch and mirror for lighting and inspection of blades and vanes 1 Remove in accordance with Helicopter Maintenance Manual the devices equipment on the compressor inlet inlet dust separator oil tank inlet duct making easy access to blades under inspection 2 Insert crank in the same way as for compressor rotation check see item 1 3 Cranking the co...

Page 302: ...tor blade no more than two 2 pits up to approx 1 0 mm 039 in deep farther than 25 mm 98 in apart blade s root g sand blasting of first stage compressor rotor blades which results in rounding of the corners transition fillet of blade s airfoil face into leading and trailing edge of the radius up to approx 2 mm 079 in CAUTION CRACKS AND ANY DAMAGES RESULTING IN CRACKS ON THE BLADES ARE NOT PERMITTED...

Page 303: ...d shall be removed by filing and blending as it is shown in Dwg 602 f after blending of damages carefully remove the cloth from compressor flow path and locking key as well as make sure there is no chips or any other elements inside flow path g remove crank and screw the protective cover into engine front case in the same manner as for compressor rotation check see item 1 h install in accordance w...

Page 304: ...er with washer Inspect the next stage of compressor rotor blades NOTE Through the first inspection opening counting from engine s front you can inspect first stage rotor blades from leading edge s side through the second operating 1 st stage rotor blades from tailing edge s side and 2 nd stage rotor blades from leading edge s side etc Through the last seventh on the cone part of compressor middle ...

Page 305: ...ification PL UE 9E999 2 After inspection and blending of blades if needed perform engine check tests engine operation for a few minutes on any rating without helicopter take off from the ground as well as external inspection of engine and record the type of performed work operations in engine s documentations ...

Page 306: ... S A MAINTENANCE MANUAL PZL 10W ENGINE 72 32 00 1992 08 28 Page 608 Export Control Classification PL UE 9E999 NOTE Dimension in mm inch First and Second Stage Compressor Blade Demages Permitted Without Any B ending Dwg 601 ...

Page 307: ...MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 72 32 00 Page 609 Export Control Classification PL UE 9E999 B e n d f o r r e m o v i n g NOTE Dimension in mm inch First Stage Compressor Blade Damages Permitted for Blending Dwg 602 ...

Page 308: ...ths 6 and 7 creates the labyrinth sealing of the compressor rotor rear bearing and constitutes the front suspension of the outer liner 2 Át the rear part the outer liner 2 is supported on the outer clamping ring of the compressor turbine l st stage guide assembly 16 The establishing mean of the outer liner 2 enables it to be rotated during the periodic inspections The inner liner 3 is fastened by ...

Page 309: ... 3 Inner liner 4 Labyrinth sleeve 5 Whirling injector 6 Labyrinth 7 Console labyrinth 8 Whirling injector fastening nut 9 Ignition unit 10 Air bleed valve 11 Drain valve 1 2 Drainage container 1 3 Flange of the air bleed for the dust separator 1 4 Flange of the air bleed for the engine icing protection system 1 5 Compressor rear case 1 6 Guide vane assembly of the compressor turbine l st stage ...

Page 310: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 72 42 00 Page 3 Export Control Classification PL UE 9E999 Combustion chamber Dwg 1 ...

Page 311: ...o high temperature flow to the turbines being their propellant The high quality of the fuel atomizing spraying uniformity and good enough mixing of the fuel and air assuring the high combustion efficiency and maintaining the burning continuity are assured due to high rotation speed of the whirling injector 5 B The secondary air stream flowing through the longitudinal holes in the outer liner 2 to ...

Page 312: ... 603 and 604 B Inspection of flame tube front segment inner space see Dwg 601 and Dwg 602 1 Remove the ignition unit see 80 02 00 REMOVAL INSTALLATION item 4 A on the outer side of the engine being inspected NOTE To facilitate the inspection two ignition units can be removed In that case one of the holes serves for lightening the other for inspection of the combustion chamber interior 2 Install a ...

Page 313: ...g defects are permissible a on the screen 6 cracks at holes of O 2 mm 079 in in quantity of no more than three length of each no longer than 15 mm 59 in b on the ring 11 cracks at all holes of t 3 mm 0 118 in with the length of each of cracks not longer than 10 mm 0 394 in c on the outer flame tube 3 cracks in the area of holes destined for ignition units in accordance with criteria specified in p...

Page 314: ...ON IN THE CASE WHEN THE SHAPE OF THE CRACK MAKES A RISK OF TEARING OFF THE PIECE OF MATERIAL THE ENGINE SHALL BE SENT TO THE AUTHORIZED OVERHAUL WORKSHOP OR TO ENGINE MANUFACTURER FACILITY IN ORDER TO REPAIR 3 Install the ignition unit see 80 02 00 REMOVAL INSTALLATION item 4 B and inspect the tightness see 80 02 00 REMOVAL INSTALLATION item 4 C D Inspection of outer space in the front part of com...

Page 315: ... ARE NOT PERMISSIBLE ALLOWABLE NOTE To facilitate arid increase the precision of the inspection it is recommended to rotate by hand the outer flame tube by one rotation In order to do it the second ignition unit shall be removed and tube shall be rotated through the hole for that unit 4 Install the ignition unit see 80 02 00 REMOVAL INSTALLATION para 2 B and inspect tightness see 80 02 00 REMOVAL ...

Page 316: ...MANUAL PZL 10W ENGINE 1992 08 28 72 42 00 Page 605 Export Control Classification PL UE 9E999 Schematic diagram of inspection of centrifugal fuel nozzle as well as the inner and outer space of the front segment of combustion chamber Dwg 601 ...

Page 317: ... for Dwg 601 1 Rear compressor case 2 Combustion chamber support case 3 Outer flame tube 4 6 Screen shield 5 Inner flame tube 7 Centrifugal fuel nozzle 8 Rear wall of compressor rear case 9 Fixing plate 10 Rib of the front wall of outer flame tube 11 Screen s ring A Insertion direction of endoscope terminal probe B Direction of endoscope lens ...

Page 318: ... Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 72 42 00 Page 607 Export Control Classification PL UE 9E999 Schematic diagram of buildup of deposit and carbon deposit on the centrifugal fuel nozzle Dwg 602 ...

Page 319: ...GINE 72 42 00 1992 08 28 Page 608 Export Control Classification PL UE 9E999 Outer flame tube l st stage compressor turbine blade B Direction of endoscope lens Schematic diagram for inspection of the ring being a part of combustion chamber inlet duct Dwg 603 ...

Page 320: ...ty are still in the range of critical state of admissible cracks Variants of critical states of admissible cracks are presented on Dwg 604 These schémas provide general orientation what types of cracks can occur what can be their maximal lengths and what is the maximal number of determined types of cracks that can occur simultaneously CAUTION IF IT IS FOUND DURING INSPECTION THAT CRITICAL STATE OF...

Page 321: ... into account position of cracks rate of their increase in the future and influence of other factors for example use of continuous ignition that accelerates cracks propagation very much 3 Record of results of inspections of outer flame tube a If occurrence of cracks of outer flame tube is found in the area of openings destined for ignition units during given inspection then mark schematically figu...

Page 322: ... 2006 03 01 72 42 00 Page 611 Export Control Classification PL UE 9E999 Class 1 Class 2 Class 3 Clases of critical states of admissible cracks of outer flame tube in the area of openings destined for ignition units seen from the side of inner flame tube Dwg 604 ...

Page 323: ...and going towards the second hole 4 b crack originating in any place on the edge of holes 4 and propagating in direction towards the outside of the hole 2 cumulative length of cracks 15 mm 0 59 in c crack originating from the hole 2 and running in the direction perpendicular to the longitudinal axis 1 cumulative length of crack 15 mm 0 59 in The second crack of Class c instead of crack Class f is ...

Page 324: ...ontrol Classification PL UE 9E999 New outer flame tube Outer flame tube after repair s weld seams after welding previous cracks of tube during repair Schemas of typical inadmissible cracks of outer flame tube in the area of openings for ignition units views from the side of inner flame tube Dwg 605 ...

Page 325: ... flame tube left side surface in the area of opening for the left ignition unit seen from the inside scale 1 1 Assessment of state of cracks mark adequate class inadmissible allowable next inspection after 300 hours allowable next inspection after 100 hours Remarks Outer flame tube right side surface in the area of opening for the left ignition unit seen from the inside scale 1 1 Assessment of sta...

Page 326: ... CTGV list stage 2 compressor turbine case 3 bearing case 28 1 The compressor turbine rotor consists of the front shaft 33 l st stage disc with the blades 31 and ll nd stage disc with blades 30 rear shaft 29 labyrinth 32 installed on the front shaft 33 These parts are connected in one segment by means of the bolts The labyrinth combs are cut on the l st and ll nd discs which together with the inne...

Page 327: ...TGV assembly is fitted by the front flange to the l st stage CTGV while by the rear flange to the compressor turbine case and combustion chamber case 4 The compressor turbine case 3 is the carrying assembly for the rear bearing 27 of the compressor turbine rotor It is the welded assembly consisting of the outer and inner casings connected together by three equally displaced fairings The fairings s...

Page 328: ...and inner casings connected by four equally spaced fairings The fairings serve as the shields for the pipes The pipe delivering the oil to the turbine rotor bearings goes through the left fairing the pipe draining the oil from the oil bearing area goes through the lower fairing while the pipe supplying the air to cool and pressure the bearing labyrinth goes through the right fairing The driving bo...

Page 329: ...miter 7 Drive box 8 Cylindrical gear 9 Bevel gear 10 Rotational speed pick up 11 Shim 1 2 Bevel gear 1 3 Torsional shaft 14 Shield 15 Bevel gear 16 Bevel gear 17 Exhaust pipe 1 8 Mounting cone 19 Connecting shaft 20 Pack couplings 21 Ball bearing 22 Bearing s case 23 Roller bearing 24 Power turbine shaft 25 Disc with the power turbine blade 26 Power turbine outer casing 27 Roller bearing 28 Bearin...

Page 330: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 72 52 00 Page 5 Export Control Classification PL UE 9E999 Turbines Dwg 1 ...

Page 331: ...s transmitted through two pair of bevel gears 9 12 15 and 16 and through the torsional shaft 13 Three bosses for fastening the rotational speed pick ups 10 are made on the case box The signal to the pick ups is transmitted from the gears 8 and 12 The required gaps between the pick ups and the gears are adjusted with the help of the adjusting shims 11 The oil injector fastened in the drive box case...

Page 332: ...wer turbine taking into account requirements See 72 02 00 MAINTENANCE PRACTICES clause 3 D 1 Inspect the sealing rings 10 and 13 on the shaft shield 11 if they are damaged exchange them for the new ones see 72 02 00 Table 203 items 20 and 21 2 Insert the shaft shield 11 into the power turbine casing 3 Prepare the adhering surface of drive gearbox 2 power turbine case 14 and washers 9 in order to c...

Page 333: ...wire 8 Install the Power Turbine speed limiter 1 see 73 22 02 REMOVAL AND INSTALLATION item 1 B 9 Check the functioning of the power turbine speed limiter during the engine operation see 71 02 00 ADJUSTMENT REMOVAL item 4 C subitem 7 and check the power turbine rotational speed pick ups see 71 02 00 ADJUSTMENT TEST item 4 B subitem 5a and b for the main line and item 4 C subitem 6 for the emergenc...

Page 334: ...cation PL UE 9E999 1 Power turbine speed limiter 2 Drive gearbox 3 Oil pipe 4 Electrical cables 5 Shield 6 Screw with lock washer 7 Nut 8 Lock washer 9 Washer 10 Sealing rings 11 Shield of shaft 12 Drive shaft 13 Sealing rings 14 Case of power turbine Replacement of the power turbine speed limiter gearbox Dwg 401 ...

Page 335: ...f material and burns on the leading and trailing edges NOTE Compressor turbine l st stage rotor consists of 63 blades CAUTION IF ANY SHARP SCRATCHES CRACKS AND LOSSES OF MATERIAL ARE FOUND ON COMPRESSOR TURBINE l st STAGE BLADES THE ENGINE SHALL BE RETURNED TO AUTHORIZED OVERHAUL W ORKSHOP OR ENGINE MANUFACTURER S FACILITY IN ORDER TO REPAIR 5 Remove the crank and screw on the protective cover on ...

Page 336: ...tor rotation during drive unit operation 2 Illuminate the blades of turbine through outlet of exhaust gas of engine with use of portable light source and check if these blades are free from cuts indents loss of material and other mechanical damages If it is necessary inspect it by means of endoscope NOTE There are 51 blades in the rotor of power turbine CAUTION IN THE CASE WHEN SHARP CUTS CRACKS A...

Page 337: ...ng preparatory actions must be performed in order to carry out the repair of cracks of engine exhaust pipe and or cracks of exhaust pipe s shields removal of the engine from the helicopter removal of the exhaust pipe shields or the whole set of exhaust unit from the engine in accordance with existing needs and after repair of cracks assembly of components of unit of exhaust in the engine and next ...

Page 338: ...e cracks occuring on weld seams or spot weldings a clean thê surface along the crack in order to remove previous weld seam b weld the crack do not clean the weld seam NOTE It is admissible to correct the weld seams twice 3 Type of welding electrical shielded arc welding with use of argon welding wire Ø1 mm of material 1H18N10T current intensity 35A ...

Page 339: ... kinematic systems A Central drive B Accessory drive box C Drive box of the power turbine speed limiter The torque to drive the accessory installed on the accessory drive box is transmitted from the compressor turbine through the central drive and the gears of the accessory drive box The torque to the power turbine speed limiter is transmitted from the power turbine shaft through the pair of bevel...

Page 340: ...rive box during the starting and from the compressor turbine to the accessory drive box during normal engine running The central drive consists of the case made of the magnesium alloy with the press fit bearing mountings pair of bevel gears bearings and central drive shaft on which the driven claw clutch end is fastened The claw clutch end is secured by the bolt 21 and the lock 12 The range of the...

Page 341: ... from the icing protection system is delivered through the case ducts to heat of the compressor guide vanes fairings in the inlet case and the starter shield 4 The fine oil filter 32 is screwed in upper part of the case The sleeve 33 securing against a contamination entrance to the oil canal during the filter removal is press fit in the lower part of the filter seat The shut off valve 34 deliverin...

Page 342: ...The moving end of the driving half clutch moves along the thread towards the driven half clutch to the mesh at the moment of the starter switch on and when the rotational speed increases rapidly The moving half clutch end is slightly braked by the felt ring 17 pressed by the shaped ring and spring The torque from the starter to the compressor turbine and the accessory drive box is transmitted thro...

Page 343: ...f clutch 20 Injector 21 Bolt 22 Magnetic plug 23 Bevel gear 24 Injector 25 Compressor bearing mounting 26 Central drive shaft 27 Central drive case 28 Shim 29 Coarse oil filter 30 Oil pressure measurement stub 31 By pass valve 32 Fine oil filter 33 Sleeve 34 Shut off valve 35 Vent rotor 36 Fuel pump fastening connector 37 Fuel pump drive gear 38 Intermediate gear 39 Intermediate gear 40 Oil pump d...

Page 344: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 72 62 02 1992 08 28 Page 4 Export Control Classification PL UE 9E999 Dwg 1 Accessory drive box ...

Page 345: ...3 with help of the magnifying glass Clean the holes using the brass wire of Ø0 5 mm 0 020 dia if any contaminations are found 5 Clean the oil injector with clean benzin see 72 02 00 Table 202 item 4 and blow through with pressured air NOTE If the oil injector holes remain chocked replace the oil injector for the new one 72 02 00 Table 203 item 65 6 Inspect the sealing rings 5 and 6 for tears crack...

Page 346: ... 1992 08 28 Page 702 Export Control Classification PL UE 9E999 Designation to the Dwg 701 1 Accessory drive box case 2 Expanding ring 3 Oil injector 4 00 6 mm 0 024 dia holes 5 Sealing ring 6 Sealing ring 7 Dowel 8 Catches 9 Instrument 10 Bolt 11 Metering pump mounting ...

Page 347: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 72 62 02 Page 703 Export Control Classification PL UE 9E999 Oil injector in the accessory drive box Dwg 701 ...

Page 348: ...rt Control Classification PL UE 9E999 DRIVE BOX OF THE POWER TURBINE ROTATIONAL SPEED LIMITER DESCRIPTION AND OPERATION 1 Description and operation The description and operation of the drive box of the power turbine rotational speed limiter are presented in 72 52 00 DESCRIPTION AND OPERATION ...

Page 349: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE Export Control Classification PL UE 9E999 Chapter 73 Fuel System 73 Fuel System ...

Page 350: ...1 1992 08 28 402 1992 08 28 12 1992 08 28 403 1992 08 28 13 1992 08 28 404 1992 08 28 14 1992 08 28 405 406 1992 08 28 15 1992 08 28 407 408 1992 08 28 16 1992 08 28 17 1992 08 28 701 1992 08 28 702 1992 08 28 101 1992 08 28 703 1992 08 28 704 1992 08 28 301 1992 08 28 302 1992 08 28 73 22 02 1 1992 08 28 2 1992 08 28 401 1997 02 28 3 1992 08 28 402 1997 02 28 401 1992 08 28 701 1997 02 28 402 199...

Page 351: ...n of running engines 13 I Engine shut down 14 J Filter chocked signaling of the fine fuel filter 14 K Shifting to the control in the EMERGENCY OPERATION mode 15 L The hydromechanic limiter operation 15 M The operation of the electronic limiters 16 FUEL SYSTEM TROUBLESHOOTING 73 02 00 101 1 Troubleshooting 101 FUEL SYSTEM SERVICING 73 02 00 301 1 Fuel system venting 301 POWER TURBINE SPEED PICK UP ...

Page 352: ...on the combustion chamber casing 401 A Removal of the draining valve 401 B Installation of the draining valve 401 DRAINING VALVE AND DRAIN CONTAINER INSPECTION AND CHECK 73 12 03 601 1 Checking the draining valve for proper operation 601 STARTING INJECTOR DESCRIPTION AND OPERATION 73 12 04 1 1 Description and operation 1 STARTING INJECTOR REMOVAL AND INSTALLATION 73 12 04 401 1 Removal and install...

Page 353: ...ATIONAL SPEED LIMITER OF THE POWER TURBINE DESCRIPTION AND OPERATION 73 22 02 1 1 Description and operation 1 A General information 1 B Operation of the power turbine rotational speed limiter 1 C Description and operation of the assemblies of the power turbine rotational speed limiter 3 ROTATIONAL SPEED LIMITER OF THE POWER TURBINE REMOVAL AND INSTALLATION 73 22 02 401 1 Removal and installation o...

Page 354: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 73 1992 08 28 Table of Contents Page 4 Export Control Classification PL UE 9E999 ELECTRONIC LIMITER UNIT MAINTENANCE PRACTICES 73 22 03 201 ...

Page 355: ...se torquemeter compressor turbine speed induction transducer power turbine speed induction transducer power turbine speed in emergency limitation path induction transducer gas temperature behind the compressor turbine thermocouples and ambient temperature resistance probe The electrohydraulic servovalve in the fuel metering pump assembly is an executive element The hydromechanic part Dwg 1 consist...

Page 356: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 73 02 00 1992 08 28 Page 2 Export Control Classification PL UE 9E999 Fuel system diagram Dwg 2 in 2 parts ...

Page 357: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 73 02 00 Page 3 Export Control Classification PL UE 9E999 Fuel system diagram Dwg 2 secondo part ...

Page 358: ...ne outlet temperature and torque It enables to get required for safe flight increased power rating 30 min OEI or after pushing the OEI button the highest power level 2 5 min OEI The fuel metering pump beside the electronic limiter unit is the main control unit in the fuel control system and controls the metered and starting fuel capacity delivered to the engine combustion chamber during all engine...

Page 359: ...combustion chamber according to CL position The power turbine rotational speed is a resulted value it depends on the power required by the helicopter main and tail rotors until the power level is high enough to be kept by the electronic limiter unit When the power turbine rotational speed achieves the value maintained by the electronic limiter unit as a result of the engine rating increase due to ...

Page 360: ...stion chamber according to the helicopter main rotor and tail rotor power demand maintaining the constant rotational speed of the helicopter main rotor The engine operational rating will be set automatically in respect to the helicopter main and tail rotors pitch NOTE The engine operation control through the power turbine rotational speed limiter intervention may be used at the one engine running ...

Page 361: ...e combustion chamber The starting fuel flows from behind the metering needle of the starting and acceleration automatic assy to the starting fuel valve After engaging the starting fuel electromagnet valve and opening the electromagnet disk valve the fuel flows through the constant capacity jet to the starting injectors located on the combustion chamber shield The electromagnet valve is engaged by ...

Page 362: ...etered fuel capacity change in the starting phase is achieved by the adjusting screw C 7 setting The electronic limiter unit limits the gas temperature behind turbine in the case when the maximum allowable gas temperature obligatory for the engine starting is being reached The entry into the operation of the temperature limiter during the starting is signalized by the GOV MAX lamp extinction and t...

Page 363: ... will be the starting and acceleration corrector Similarly as during the engine starting it will determine the pressure drop in the flow orifice of the metering needle and the pressure p3 will effect the increase of this orifice The fuel capacity in the metered fuel main will change in relation to the air pressure behind compressor p3 and compressor turbine rotational speed N1 Qf f p3 N1 or Qf ___...

Page 364: ...on occurs maximum fuel capacity or maximum allowable compressor turbine rotational speed NOTE At fast changes of the main rotor pitch exists the possibility of power turbine helicopter main rotor rotational speed overcomes and fallings because in the EMERGENCY OPERATION mode the correction system limiting the N2 overcomes and fallings does not function In the case of the lever CL setting in positi...

Page 365: ... valve is fully opened and blocked The controlling fuel capacity in the bypass line is controlled by the power turbine rotational speed limiter Its setting is lowered and it acts as the governor of the power turbine rotational speed It maintains the constant power turbine rotational speed in accordance to its characteristic automatically setting such engine power rating that the available power wi...

Page 366: ...The engine operation control in the EMERGENCY OPERATION mode during deceleration is similar as in the AUTOMATIC OPERATION mode In the case when the power turbine speed overcome prolongs then minimum compressor turbine rotational speed is maintained by the minimum observed rotational speed valve contained in the fuel metering pump F 30 min ONE ENGINE INOPERATIVE OEI rating At the shutdown moment of...

Page 367: ...ngages the electromagnet of the OEI parameters and causes the shifting to the higher level in comparison with the 30 min OEI parameters of the limitation setting for the compressor turbine rotational speed gas temperature behind turbine and output shaft torque in the electronic limiter unit of the running engine The disc valve in the electromagnet assembly of the OEI parameter valve opens and the ...

Page 368: ...imultaneously the metered fuel pressure drop causes the drain valve opening The fuel from the whirling nozzle and pipe line connecting the fuel metering pump with the whirling nozzle due to residual air pressure in the combustion chamber during the engine overrun is forced out to the drainage main and drained to the engine drain container 2 Engine shutdown by means of the electric shut off valve T...

Page 369: ...d the orlus type pull rod pushes the push rod in the connector of the power turbine rotational speed limiter The limiter is being shifted to the lower value of maintained rotational speed of the power turbine Its function changes in this way The limiter discontinues to be a safeguard of the power turbine against the damaging in the case of a overspeed and begins to be a controller maintaining the ...

Page 370: ...ottle valve and pressure drop valve act as the limiter of the maximum fuel capacity at the TAKE OFF and 30 min OEI ratings and the G8 jet limiting the additional fuel capacity which is delivered to the engine combustion chamber at the 2 5 min OEI rating 2 The hydromechanic limiters of the power turbine rotational speed limiter a In the AUTOMATIC OPERATION mode the power turbine rotational speed li...

Page 371: ...Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 73 02 00 Page 17 Export Control Classification PL UE 9E999 The operation of a m limiters is described in Chapter 73 22 03 DESCRIPTION OPERATION ...

Page 372: ...AINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 73 02 00 Page 101 Export Control Classification PL UE 9E999 FUEL SYSTEM TROUBLESHOOTING 1 Troubleshooting Fuel system troubleshooting is described in Chapter 7 2 0 2 0 0 TROUBLESHOOTING ...

Page 373: ...essel the venting pipe second end 3 Open the antifire valve and switch on the boost pump delivering the fuel to the helicopter system 4 Push on the device end and rotate it by 90 5 Drain the fuel until no air bubbles appear in the fuel stream 6 Rotate the device end to the original position 7 Switch off the boost pump and close the antifire valve 8 Unscrew the device from the venting valve end 9 I...

Page 374: ...W ENGINE 73 02 00 1992 08 28 Page 302 Export Control Classification PL UE 9E999 1 Terminal for fuel delivery to the pump 3 Venting valve 2 Venting valve plug 4 Sealing ring 5 Pump drive shaft Fuel metering pump fragment with the draining valves Dwg 301 ...

Page 375: ...the L size of the pick up and record it Dwg 401 Adjusting Shim Power turbine speed pick up Dwg 401 NOTE Measure the L size to the flange surface in the case when no shim under the pick up flange B Pick up installation 1 Replace for the new one the sealing ring in the casing hole see 72 02 00 Table 203 item 22 2 Measure the L size of new pick up Dwg 401 3 Obtain the L dimension as measured before A...

Page 376: ...a wire To connect the electric lead to the pick up slip the plug onto the pins tighten the plug nut home and secure it with a wire 2 The CRL 3 3K CRL 3 3 CRL 3 3A pick ups have electric six pin coupling To connect the electric lead to the pick up slip the plug onto the pins and turn the plug nut right to snap the locking snap fastener protecting against undoing When disconnecting the plug turn the...

Page 377: ...ents and insulator of the both parts of the contact connector 3 4 times using ethanol and a brush 3 After each washing of the contact connector parts dry them with compressed air 4 Inspect the contacts for their conditions In case of any delamination 1 of the contact connector coating or corrosion of the coupling contacts replace the pick up acc to 73 02 00 pages 401 402 and the plug acc to the he...

Page 378: ... 3 The line main connecting the power turbine speed limiter to the fuel metering pump This main consists of two pipes creating the outside control fuel main part bypass fuel of the fuel metering pump They connect the suitable studs of the power turbine speed limiter to the fuel metering pump Therefore the power turbine speed limiter may operate as one of standby programmers of the metered fuel con...

Page 379: ...wg 1 between the T connection 73 12 01 item 4 and the pipe draining the drained fuel from the power turbine rotational speed limiter see Dwg 2 The check valve consists of a casing in which there is a ball secured against a falling out by the spring ring lock and the nut secured by the wire ring 2 Operation Under the influence of the air pressure impulse from the engine combustion chamber the ball ...

Page 380: ...E MANUAL PZL 10W ENGINE 73 12 02 1998 07 15 Page 2 Export Control Classification PL UE 9E999 Check valve first version old one Fig 1 Check valve second version new one Fig 1a 1 Safety catch 2 Nut 3 Stop 4 Check valve body 5 Ball 6 Nozzle ...

Page 381: ...PZL 10W ENGINE 1998 07 15 73 12 02 Page 3 Export Control Classification PL UE 9E999 Location of check valve on engine first version old one Location of check valve on engine second version new one Fig 2a 1 Check valve 2 Pipe tee 3 Orifice 4 Nozzle ...

Page 382: ...ightness of the connection between the draining valve and combustion chamber and drain container is assured by the sealing washers The draining valve consists of the casing valve head and spring installed inside the case and secured against falling out by the lock ring Dwg 2 The drain container is made as one assembly in the form of the cylinder with two connectors one to collect the fuel and seco...

Page 383: ...MANUAL PZL 10W ENGINE 73 12 03 1992 08 28 Page 2 Export Control Classification PL UE 9E999 1 Draining valve 2 Drain container 3 Nut 4 Washers 5 Washer Installation of the draining valve together with the drain container on the engine Dwg 1 ...

Page 384: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 73 12 03 Page 3 Export Control Classification PL UE 9E999 1 Case 2 Valve head 3 Spring 4 Lock ring Draining valve Dwg 2 ...

Page 385: ...d on the bigger diameter connector Set on the valve new washer 2 see 72 02 00 Table 203 item 70 and screw the valve into the combustion chamber casing 2 Place new washer 4 the drain container 5 and second new washer on the valve see 72 02 00 Table 203 item 56 Screw in the cap nut 6 3 Remove stopper connect and screw in the pipe 7 nut and in the case when the engine is installed on the helicopter a...

Page 386: ...ning valve for the new one see 72 02 00 Table 203 Stem 71 Repeat the false starting and check the operation of the valve 7 Accomplish the check of the draining valve for proper operation during the engine run refer to DRAINING VALVE AND DRAIN CONTAINER INSPECTION AND CHECK 8 Tighten the leaky connections Safety wire the valve 3 to the combustion chamber casing Safety wire the nut 6 and the nuts of...

Page 387: ...ol Classification PL UE 9E999 1 Combustion chamber casing 2 Washer 3 Draining Valle 4 Washers 5 Drain container 6 Cap nut 7 Fuel pipe connecting the drain container with the accessories of the engine fuel system 8 Fuel pipe of the helicopter system Removal and installation of the draining valve Dwg 401 ...

Page 388: ...on chamber draining valve become closed before the engine reach the Ground Idle range The draining valve closed condition is indicated by ceasing of the air flow from the helicopter container pipe To facilitate the checking put one of the side of an elastic hose P V C or rubber onto the container pipe and place the other side of a hose into the container with water The visible bubbles allow to exa...

Page 389: ...2 08 28 73 12 04 Page 1 Export Control Classification PL UE 9E999 STARTING INJECTOR DESCRIPTION AND OPERATION 1 Description and operation The detailed description and operation of the starting injector are presented in the Chapter 80 02 00 DESCRIPTION AND OPERATION ...

Page 390: ... 73 12 04 Page 401 Export Control Classification PL UE 9E999 STARTING INJECTOR REMOVAL AND INSTALLATION 1 Removal and installation The procedure concerning the removal and installation of the starting injector is presented in the Chapter 80 02 00 REMOVAL AND INSTALLATION ...

Page 391: ... 28 73 12 05 Page 1 Export Control Classification PL UE 9E999 CENTRIFUGAL FUEL NOZZLE DESCRIPTION AND OPERATION 1 Description and operation Detailed description and operation of the centrifugal fuel nozzle are presented in the Chapter 72 42 00 DESCRIPTION AND OPERATION ...

Page 392: ...filter signaling the fine fuel filter choking overflow valve vent valve and hydromechanical rotational speed pick up The pressure assembly increase the fuel pressure to the required value and the fuel is filtered simultaneously The fuel reaches to the filter assy through the electric shut off valve The fuel is divided into two mains in the filter assy The metered fuel main and the controlling fuel...

Page 393: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 73 22 01 1992 08 28 Page 2 Export Control Classification PL UE 9E999 Fuel metering pump Dwg 1 ...

Page 394: ...uses with help of the release valve the similar pressure drop change on the metering needle The fuel capacity in the metered fuel main changes proportionally to the bypass fuel capacity change There is a row of the controllers in series connection in the bypass main that changing the fuel capacity flowing through the bypass control the metered fuel capacity supplied to the engine combustion chambe...

Page 395: ...ed fuel main in relation to the bypass fuel capacity change At the engine starting and acceleration the control of the fuel capacity delivered to the combustion chamber is slightly different The minimum orifice in the metered fuel main is not now the idle jet and throttle valve orifice The minimum orifice is now the metering needle orifice The size of this orifice depends on the air pressure from ...

Page 396: ...hrottle valve and to the idle jet connected parallelly Next through the outlet valve the fuel is delivered to the centrifugal fuel nozzle which is made as an integrated assy of the compressor assembly The fuel metering pump enables the engaging the OEI operation ratings The 30 min OEI is realized by the electronic limiter unit The fuel metering pump acts as an executive assembly The control electr...

Page 397: ...ors The separate function of the fuel metering pump is to deliver the starting fuel to the starting injectors during the engine starting The fuel to the starting injectors is delivered from the starting fuel main It begins behind the metering needle The starting fuel valve is a starting fuel metering assy The delivery control of the starting fuel is automatic it is performed by the electric signal...

Page 398: ...ssure behind the gear pump causes the slide motion overcoming the spring resistance and the force of the fuel pressure behind the filter The slide controlling edge opens the outlet hole making possible the unfiltered fuel flow The reed relay signals exceeding the allowed fuel pressure drop on the fine filter choked filter causing the signaling lamp light on in the pilot cockpit g Vent valve It is ...

Page 399: ... unit SAU The starting and acceleration unit consists of the assemblies as follows bellows assembly metering needle assembly three adjusting assemblies The fuel capacity flowing through the metering needle depends on the flow orifice size of the metering needle and pressure drop The metering orifice size is controlled by the air pressure behind compressor that is fed to the left opened bellow of t...

Page 400: ...very beginning i e defined rotational speed of the compressor turbine It closes at the engine shutdown 6 Drain valve The diaphragm assembly is the basic assy of the drain valve When the fuel pressure increases in the metered fuel main the valve closes Atter the engine shutdown the drain valve connects the outer main delivering the fuel to the centrifugal fuel nozzle with the drainage The fuel from...

Page 401: ...accordance to the slide window shape The bypass fuel capacity and consequently the pressure drop on the metering needle changes The fuel capacity in the metered fuel main will be controlled according to the assumed characteristic Qf C Qb p3 The R4 screw adjustment causes the spring tension change 1 1 Emergency rotational speed limiter of the compressor turbine The emergency rotational speed limite...

Page 402: ...operates in the case of the electronic limiter unit failure 12 Pressure drop valve The pressure drop valve consists of the assemblies as follows slide pair diaphragm assembly adjusting assembly The fuel pressure ahead of the throttle valve and idle jet is delivered to the spring diaphragm chamber The fuel pressure behind the throttle valve and idle jet is fed to the chamber above the diaphragm The...

Page 403: ...e jet orifices of both pressure dividers are equal the controlling pressures on the slide fronts of the slide pair are equal and the slide remains centrally positioned When electric controlling signal occurs the anchor would be turned around its axis and the diaphragm changing the flow orifice of two jets would cause the equilibrium state disturbing in the pressure dividers The pressures acting on...

Page 404: ...in the electronic limiter unit The minimum observed rotational speed acts in the case when the bypass main is completely closed by the slide pair of the power turbine rotational speed limiter At that time the switching valve opens and enables the flow through the minimum observed rotational speed valve NOTE The complete closing of the bypass main occurs in the case of prolonged power turbine rotat...

Page 405: ... is limited by the orifice of the G8 adjusting jet The total fuel capacity delivered to the combustion chamber increases by a constant value Simultaneously the fuel is delivered below the piston of the emergency rotational speed limiter of the compressor turbine causing the limiter shifting to the higher setting appropriate to the 2 5 min OEI rating 19 Starting fuel valve The starting fuel valve c...

Page 406: ...The CL assembly consists of the shaft with the toothed ring matching with the throttle valve disc and lever The shaft is bedded in the casing of the fuel metering pump The disc is fastened to the casing by three bolts The lever position adjustment in relation to the shaft after the tuel capacity adjustment of the throttle valve is performed by the T11 perpetual screw The indicator shows the lever ...

Page 407: ...e the clamps 13 fastening it c the pipe 11 delivering the air from the compressor to the starting and acceleration unit 4 Unscrew the pipe 4 delivering the fuel to the main nozzle and the drain pipe 5 at the fuel metering pump 5 Unsecure and unscrew the pipe nuts with the rod 14 on the fuel metering pump and the rotational speed limiter of the power turbine and so remove the pipe 6 Put the process...

Page 408: ...on the pump drive shaft and to fit with the locating pin on the pump flange to the hole in the flange of the accessory drive gearbox 6 Install two halfrings 1 of the pump fastening the band clip 3 and screw this clip with the bolt 2 NOTES 1 Install the haltrings with the number markings pointed to the engine back 2 The touch of the halfring interfaces in the parting plane is not allowed 3 The part...

Page 409: ...pipe to the stub of the fuel metering pump 6 and safety wire 17 Vent the fuel system see 73 02 00 SERVICING item 1 18 Remove the preservation from the fuel metering pump performing two false starting see 71 02 00 ADJUSTMENT TEST item 3 D and cold motoring see 71 02 00 ADJUSTMENT TEST item 3 C 19 Perform the engine check test with new fuel metering pump see 71 02 00 ADJUSTMENT TEST items 4 A and 4 ...

Page 410: ...ump 7 Control lever 8 Fuel pipe 9 Fuel pipe 10 Electric plug connectors 11 Air pipe 12 Fuel pipe 13 Clamps 14 Pipe with the rod 15 Drain pipe 16 Nut 17 Thermocouple manifold 18 Thermocouple table block 19 Thermocouple block 20 Bracket 21 Shield right of the thermocouple manifold 22 Shield left of the thermocouple manifold 23 Bolts 24 Grounding 25 Bolt 26 Clamp 27 Lock washer 28 Electric lead 29 Nu...

Page 411: ... 10W ENGINE 1992 08 28 73 22 01 Page 405 406 Export Control Classification PL UE 9E999 Fuel metering pump Rotational speed limiter Rotational of the power turbine speed pick up Air bfeed valve Removed and installation of the engine equipment Dwg 401 ...

Page 412: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 73 22 01 Page 407 408 Export Control Classification PL UE 9E999 Removal and installation of the engine equipment Dwg 402 ...

Page 413: ...iscovered proceed in accordance to the troubleshooting diagram see 72 02 00 TROUBLESHOOTING CAUTION THE FURTHER ENGINE OPERATION IS PROHIBITED WITHOUT PREVIOUS FINDING AND REMOVING OF THE PARTICLE APPEARANCE CAUSES 5 Wash the filtering element with clean gasoline see 72 02 00 Table 202 item 4 and dry it in the air 6 Inspect the filtering element CAUTION IN THE CASE WHEN THE FILTERING ELEMENT GRID ...

Page 414: ...f removed filter using syringe or similar device 4 Visually inspect the filtering element In the case when the foreign particles or filings are noted proceed in accordance to appropriate troubleshooting diagram see 72 02 00 TROUBLESHOOTING CAUTION THE FURTHER ENGINE OPERATION IS PROHIBITED WITHOUT PREVIOUS FINDING AND REMOVING OF THE APPEARANCE CAUSES OF THE FOREIGN PARTICLES AND CHIPS 5 Preserve ...

Page 415: ...zeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 73 22 01 Page 703 Export Control Classification PL UE 9E999 1 Fuel supply stub 2 Filtering element 3 Nut 4 Mandrel 5 6 7 Sealing rings Fuel coarse filter Dwg 701 ...

Page 416: ... S A MAINTENANCE MANUAL PZL 10W ENGINE 73 22 01 1992 08 28 Page 704 Export Control Classification PL UE 9E999 1 Filter casing 2 Filtering element 3 Setting plug 4 Expanding ring 5 6 7 Sealing rings Fuel fine filter Dwg 702 ...

Page 417: ... mode B Operation of the power turbine rotational speed limiter Dwg 1 In the case of shifting to the manual engine operation control EMERGENCY OPERATION the control assembly causes the spring tension decrease and the limiter shifting to the lower value of the maintained power turbine rotational speed i e the setting change NOTE The shifting to the EMERGENCY OPERATION control mode follows the contr...

Page 418: ...AL PZL 10W ENGINE 73 22 02 1992 08 28 Page 2 Export Control Classification PL UE 9E999 ELEMENT MARKING ADJUSTED PARAMETER NAME P15 MAXIMUM N2 LIMITATION ADJUSTMENT P58 N2 LIMITATION ADJUSTMENT Rotational speed limiter of the power turbine Dwg 1 ...

Page 419: ... slide of the slide pair is connected to the lever by articulated join The diaphragm separates the air space and the hydraulic part The valve assembly included to the bypass main is an executing element determining the controlling fuel capacity in the bypass main 3 Control assembly The P59 push rod is positioned vertically in the accessory case One of the lever arms is supported by the push rod tw...

Page 420: ...out the washers from the threaded studs move the accessory forward and remove it from the engine B Installation of the power turbine rotational speed limiter 1 Wash the preserving oil from the outer accessory surfaces by the brush soaked in gasoline or fuel see 72 02 00 Table 202 item 4 Wipe the accessory surfaces with clean cotton clothes 2 Unscrew the process plugs from the fuel stubs drain the ...

Page 421: ...ps 13 on the pipes 8 9 and 15 9 Take in the pipe with the rod 14 tighten the nuts and safety wire them 10 Check the push rod operation and adjust if necessary see 71 02 00 ADJUSTMENT TEST item 5 E subitem 4 11 Check the operation of the power turbine rotational speed limiter during i the engine running see 71 02 00 ADJUSTMENT TEST item 4 C subitem 7 ...

Page 422: ...ompressor turbine rotational speed and gas temperature in the engine c control of the air bleed valve behind compressor VI stage d emitting the signals after exceeding the set levels of the compressor turbine rotational speed I to the starting system II to the engaging system of the OEI ratings III to the control system of the running time counters IV to the correction disengaging system of change...

Page 423: ...wo contact connectors for the contacts are moúnted to which are delivered signals coming to the unit from the pick ups and which are controlling signal outputs from the unit The connector serving to the electric system testing is positioned on the front plate The description of the signals on the connector contacts is inserted on Dwgs 1 and 2 as well as on Tables 1 2 and 3 2 Operation A Feeder uni...

Page 424: ...e high amplitudę and with the help of the frequency voltage converter is changed for the signal proportional to the compressor turbine rotational speed This signal is fed to the circuit of the corrected compressor turbine rotational speed to the circuit of the compressor turbine rotational speed limiter to the circuit preparing the signals for the starting system to the OEI power system to the eng...

Page 425: ...ignal gate controls the integrator operation in the output system controlling the current of the electrohydraulic servo valve 7 Output system it consists of the system creating the controlling voltage signal with the imiter of the maximum value of this signal and also the voltage current converter The limiter system feeds the negative signal to the LSG eliminating by this the remaining limiter inf...

Page 426: ...el in the range from 95 to 105 The selection of the controller setting is made with the help of the potentiometer controlled from the pilot cockpit Additionally the system prevents the decreasing of the engine operation rating below designed level of the minimum corrected rotational speed of the compressor turbine and relates the operation of the N2 controller to the control lever angle change rat...

Page 427: ...tt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 73 22 03 1992 08 28 Page 6 Export Control Classification PL UE 9E999 Operation diagram of the electronic limiter unit Dwg 1 in two parts part first ...

Page 428: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 73 22 03 Page 7 Export Control Classification PL UE 9E999 Operation diagram of the electronic limiter unit Dwg 1 second part ...

Page 429: ...s shutdown The following conditions must be fulfilled simultaneously for the limitation level shifting occurence corrected compressor turbine rotational speed of the running engine is higher than the closing level of the air bleed valve from behind compressor VI stage rotational speed of the shutdown engine drops below N1 58 electronic unit feeding of both engines is engaged At the single engine r...

Page 430: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 73 22 03 Page 9 Export Control Classification PL UE 9E999 Input and output signals of the ALAE 2 unit PC series Dwg 2 ...

Page 431: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 73 22 03 1992 08 28 Page 10 Export Control Classification PL UE 9E999 Input and output signals of the ALAE 2 unit PC series Dwg 3 ...

Page 432: ...IC SERVO VALVE Z1 13 THERMOCOUPLES alumel TML Z1 14 SCREEN OF THE t2 TEMPERATURE PICK UP TRCu 150p Z1 15 t2 TEMPERATURE PICK UP TRCu 1 50p Z1 16 t2 TEMPERATURE PICK UP TRCu 150p Z1 17 N2 PICK UP emergency line CRL 3 Z1 18 N2 PICK UP SCREEN emergency line CRL 3 Z1 19 THERMOCOUPLE SCREEN TML Z1 20 SCREEN OF THE TORQUEMETER LEADS from EBP 3 or EBP 3M Z1 21 TQ2 TORQUE SIGNAL from EBP 3 or EBP 3M Z1 22...

Page 433: ...SIGNAL Z1 9 t2 TEMPERATURE PICK UP TRCu 150 p Z1 10 t2 TEMPERATURE PICK UP TRCu 150 p Z1 11 N2 PICK UP SCREEN emergency line CRL 3 Z1 12 N2 PICK UP control line CRL 3 Z1 13 N2 PICK UP control line CRL 3 Z1 14 N1 PICK UP SCREEN CRL 3 Z1 15 SIGNALIZING OF THE EMERGENCY VALVE ENGAGING Z1 16 Z1 17 SCREENS OF ALL LEADS Z1 18 THERMOCOUPLE SCREENS TML Z1 19 DELETING OF THE EMERGENCY VALVE ENGAGING Z1 20 ...

Page 434: ...NNING TIME COUNTER FOR 30 min OEI RATING Z2 10 ON OFF SWITCH OF THE 30 min OEI LEVEL Z2 11 ON OFF SWITCH OF THE 2 5 min OEI LEVEL Z2 12 Z2 13 SIGNALIZING OF THE UNIT OPERATION 5 mA STATE GOV MIN Z2 14 ON OFF SWITCH OF THE CHECK LEVELS Z2 15 N2EC CHECK Z2 16 N 1 CHECK Z2 17 CTOT CHECK Z2 18 TQ1 CHECK Z2 19 SIGNALIZING OF THE UNIT OPERATION 5 mA STATE GOV MAX Z2 20 RUNNING TIME COUNTER FOR TAKE OFF ...

Page 435: ...CREEN Z2 11 CTOT CHECK Z2 12 TQ1 CHECK Z2 13 Z2 14 Z2 15 Z2 16 Z2 17 TQ2 SCREEN from EBP 3 Z2 18 Z2 19 SIGNALIZING OF THE UNIT OPERATION 5 mA STATE GOV MIN Z2 20 SIGNALIZING OF THE UNIT OPERATION 5 mA STATE GOV MAX Z2 21 28V BASIC FEEDING Z2 22 28V EMERGENCY LINE FEEDING Z2 23 SCREEN OF THE COLLECTIVE PITCH POTENTIOMETER Z2 24 Z2 25 TQ1 TORQUE SIGNAL from EBP 3 Z2 26 TQ1 TORQUE SIGNAL from EBP 3 Z...

Page 436: ...OF THE LOWEST SIGNAL GATE Z3 10 SIGNAL OF THE N1 LIMITER OPERATION Z3 11 SIGNAL OF THE N 1 c MIN LIMITER OPERATION Z3 12 SIGNAL OF THE N2 LIMITER OPERATION Z3 13 15 V Z3 14 22V Z3 15 V N1C signal proportional to the N 1c Z3 16 V TQ2 signal proportional to the TQ2 of adjoining engine Z3 17 V TQ1 signal proportional to the TQ1 Z3 18 V N2 V ΔN2 86 Z3 19 V N2 signal proportional to N2 Z3 20 V N1 signa...

Page 437: ...R SIGNALIZING Z3 36 2 5 min OEI COUNTER SIGNALIZING Z3 37 TQ1 TORQUE PICK UP from EBP 3 or EBP 3M Z3 38 TQ1 TORQUE PICK UP from EBP 3 OR EBP 3M Z3 39 SCREEN OF THE TORQUE PICK UPS Z3 40 TQ2 TORQUE PICK UP from EBP 3 OR EBP 3M Z3 41 TQ2 TORQUE PICK UP from EBP 3 or EBP 3M Z3 42 Z3 43 CTOT THERMOCOUPLE chromel Z3 44 CTOT THERMOCOUPLE alumel Z3 45 CTOT SCREEN Z3 46 Io Z3 47 SCREEN OF THE N1 N2 and N2...

Page 438: ...ATION Z3 7 Vo signal proportional to lo Z3 8 INTEGRATOR OUTPUT Z3 9 OUTPUT OF THE LOWEST SIGNAL GATE Z3 10 SIGNAL OF THE N1 LIMITER OPERATION Z3 11 28V CENTRAL MASS Z3 12 0V COMPARATIVE LEVEL Z3 13 15 V Z3 14 22V Z3 15 VN1c signal proportional to N 1c Z3 16 VTQ2 signal proportional to TQ2 second engine Z3 17 VTQ1 signal proportional to TQ1 Z3 18 90 N2 Z3 19 VN2 signal proportional to N2 Z3 20 VN 1...

Page 439: ... and Z2 connectors in the ALAE 2 unit and the Z1 and Z2 connectors in the cable bundle Washing agent spirit 2 After incorrect operation of the helicopter powerplant test the ALAE 2 unit using the TEOS 2 diagnostic tool to find the probable cause of the fault A defective ALAE 2 unit should be sent to the producer for inspection and repair 3 After the electronic limiter unit exchange perform the che...

Page 440: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE Export Control Classification PL UE 9E999 Chapter 75 Air System 75 Air System ...

Page 441: ...08 01 20 Table of Contents 1 1992 08 28 2 1992 08 28 75 02 00 1 1992 08 28 2 1992 08 28 3 1992 08 28 4 1992 08 28 5 6 1992 08 28 101 1992 08 28 75 12 00 1 1992 08 28 2 1992 08 28 3 1992 08 28 4 1992 08 28 5 1992 08 28 401 2008 01 20 402 2008 01 20 403 1992 08 28 404 2008 01 20 75 32 00 1 1992 08 28 2 1992 08 28 3 1992 08 28 4 1997 07 15 5 1992 08 28 6 1992 08 28 7 1992 08 28 401 1992 08 28 402 199...

Page 442: ...The air bleeds for the needs of the helicopter inlet dust separator and engine anti icing 3 AIR SYSTEM TROUBLESHOOTING 75 02 00 101 ENGINE ANTI ICING SYSTEM DESCRIPTION OPERATION 75 12 00 1 1 General Information 1 2 The basic anti icing system description and operation 1 A The air flow heating the engine inlet elements 1 B The anti icing valve operation 2 ENGINE ANTI ICING REMOVAL INSTALLATION 75 ...

Page 443: ...he compressor VI stage 1 B The air bleed from beyond the compressor CC BV 2 COMPRESSOR CONTROL REMOVAL INSTALLATION 75 32 00 401 1 The air bleed control valve removal and installation 401 A The control valve removal 401 B The control valve installation 401 2 The air bleed from behind compressor VI stage valve removal and installation 401 A The valve removal 401 B The valve installation 402 3 The a...

Page 444: ...between labyrinth combs and sleeves The air from beyond compressor VI stage is delivered to the space between the labyrinths via outside pipe 2 and next through inside pipe in rear part of inlet case strut A part of the air flows through the labyrinth to the oil area from where together with the oil is sucked off to the oil tank The rest of the air joints the inlet air stream 2 The sealing of rear...

Page 445: ...f power turbine rear bearing after it exits from power turbine case strut B The cooling of the turbines Dwg 1 1 The cooling of the compressor turbine The air from behind compressor flowing between combustion chamber case and combustion chamber liner divides in two streams One goes to cool the outside ring and the outside shroud of second stage compressor turbine i nozzle vane assembly The second s...

Page 446: ...system has been described in Chapter 73 02 00 D The air bleed controlling compressor operation see 72 02 00 DESCRIPTION AND OPERATION Dwgs 2 and 3 The compressor surge safety margin during the starting and transient ratings is secured by the automatic air bleed from the compressor The air is bled through three air bleeds One valve is beyond the compressor VI stage and two are behind the compressor...

Page 447: ...en from the stub on combustion chamber case The Chapter 72 22 00 contains the description of the dust separator functioning It is allowed a continuous air bleed for helicopter needs of capacity max 0 07 kg s 0 15 lb sec b air bleed for dust separator ejector of capacity max 0 04 kg s 0 09 lb sec c total air bleed for helicopter needs and dust separator ejector of capacity max 0 11 kg s 0 24 lb sec...

Page 448: ...r fire protection liner shield 5 Pipe in power turbine case strut 6 Space between the labyrinths for the air supply to the power turbine disc rear side Bearing sealing and turbine cooling diagram Dwg 1 7 Space for the air cooling of the power turbine disc front side 8 Air flow openings 9 Between labyrinth area for the air supply to the compressor turbine II stage turbine disc rear side 10 Compartm...

Page 449: ...itney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 75 02 00 Page 101 Export Control Classification PL UE 9E999 AIR SYSTEM TROUBLESHOOTING The troubleshooting is contained in 72 02 00 TROUBLESHOOTING ...

Page 450: ...ine is operating The description of the oil system functioning is contained in Chapter 79 02 00 2 The basic anti icing system description and operation Dwg 1 A The air flow heating the engine inlet elements Hot air from behind compressor received from the stub 11 on the combustion chamber case is delivered via the pipe 10 to the anti icing valve 3 The valve 3 is positioned above the right strut of...

Page 451: ...turned on The permeability of these holes is therefore a necessary condition of the anti icingvalve correct functioning The hot air extends to the anti icing valve during the engine starting when the electromagnetic valve is switched off It flows via the spindle hole to the area behind the spindle from there it flows via the openings 16 and the pipe 14 to the electromagnetic valve The spindle move...

Page 452: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 75 12 00 Page 3 Export Control Classification PL UE 9E999 Anti icing system diagram Dwg 1 ...

Page 453: ... S A MAINTENANCE MANUAL PZL 10W ENGINE 75 12 00 1992 08 28 Page 4 Export Control Classification PL UE 9E999 The air from behind compressor supplied via pipe 10 The air from behind compressor VI stage Anti icing valve D wg 2 ...

Page 454: ... combustion chamber case 12 Frame 13 Electromagnetic valve 14 Air pipe 15 Electromagnetic valve terrule 16 Air delivery openings from anti icing valve to the electromagnetic valve 17 Anti icing valve case 18 Anti icing valve sleeve 19 Air outlet from the anti icing valve to the duct a in the inlet case strut 20 Air delivery duct to the labyrinth sealing of the compressor front bearing a duct in th...

Page 455: ...the washers 6 7 Remove the valve 1 from the threaded studs 2 and 7 B The anti icing valve installation NOTE Install the air pipe 15 on the flanges on valve 1 and pipe connection 16 taking into account requirements see 72 02 00 MAINTENANCE PRACTICES clause 3 D 1 Clean the adhering surfaces on the gearbox case and on the valve with the brush soaked in the gasoline see 72 02 00 Table 202 item 4 2 Loc...

Page 456: ...washers 13 13 Place and tighten the electric cable plug 22 on the valve and safety wire it 14 Perform the tests see 71 02 00 ADJUSTMENT AND TESTS item 4 C subitem 5 NOTE Carry out the test of engine after about 10 hours from the end of assembly of anti icing valve 2 The anti icing system electromagnetic valve removal and installation Dwq 401 A The electromagnetic valve removal 1 Unsecure and unscr...

Page 457: ...att Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 75 12 00 Page 403 Export Control Classification PL UE 9E999 The anti icing valve and the control valve removal and installation Dwg 401 ...

Page 458: ...s to the Dwg 401 1 Anti icing valve 2 Threaded stud 3 Washer 4 Self locking nut 5 Bracket 6 Washer 7 Threaded stud 8 Air pipe 9 Electromagnetic valve 10 Clamp 11 Electric cable 12 Nut 13 Lock washer 14 Washer 15 Air pipe 16 Stub on the combustion chamber case 17 Washer 18 Washer 19 Bolt 20 Electric manifold 21 Clamp 22 Electric cable 23 Pipe ...

Page 459: ...d the compressor VI stage The electric signal from the electronic limiter unit is a control signal The air bleed control valve consists of the electromagnetic valve 1 the casing 2 and the inlet 6 and outlet 8 ferrules The valve work is two state type When the electromagnetic valve 1 is switched on then the valve head 5 under the spring 7 thrust and the air pressure from behind the compressor moves...

Page 460: ...he engine speed corresponding the BV closing speed The BV opens when the engine rating lowers below the BV closing engine speed At that time the electronic limiter unit transmits the signal to the electromagnetic valve in the air bleed control valve to close the BV The electromagnetic valve closes the air flow from behind the compressor to the BV The area below the piston 3 is being connected to t...

Page 461: ...he openings is the valve case At the next starting stage after the air pressure behind compressor reaches the value overcoming the spring 2 counteraction the valve will be closed and remains at that state on all operating ratings up to the engine shutdown when is open again Earlier or later valve closing during the starting process depends on the spring 2 rigidity and has influence on the starting...

Page 462: ... adjustment plate with the letter O fully closed marked on the adjustment plate with the letter Z The selection of the adjustment position depends on engine individual parameters type of operation summer winter current weather conditions Suitable adjustment position of the valve is obtained by switching the adjustment plate It is recommended to use the following adjustment positions of the valve w...

Page 463: ...Classification PL UE 9E999 Ai r b e h i n d t he co m p re ss o r T o t h e a i r bl e e d v a lv e r o m be h i n d t h e c o m p re ss o r VI st a ge 1 Electromagnetic valve 2 Valve case 3 Valve seat 4 Filter 5 Valve mushroom head 6 Inlet ferrule 7 Spring 8 Outlet ferrule Air bleed control valvę Dwg 1 ...

Page 464: ... compressor VI stage T o t h e a t m o s p h e r e A i r s u p p l y c o n t r o I v a T o t h e B V o p e n s t a t e s i g n a I d e v i c e 1 Compressor middle case 2 Cylinder 3 Piston 4 Spring 5 Sealing rings 6 Cover 7 Drainage valve case 8 Slide 9 Spring 10 Drainage hole 11 Outlet Air bleed valve from behind the compressor VI stage Dwg 2 ...

Page 465: ...eszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 75 32 00 Page 7 Export Control Classification PL UE 9E999 1 Valve mushroom head 2 Spring 3 Valve housing 4 Nut Air bleed valve on the combustion chamber case Dwg 3 ...

Page 466: ... Place the clamp 32 on the valve Screw in new self lock nuts on the bolts fastening the clamp see 72 02 00 Table 203 item 1 6 3 Tighten with the wrench the nuts of the pipes 30 and 31 and safety wire 4 Screw in the plug of the electric cable 33 and safety wire 5 Perform the tests see 71 02 00 ADJUSTMENT TEST item 4 C subitem 1 2 The air bleed from behind compressor VI stage valve removal and insta...

Page 467: ...2 directing it to the left for the left engine or to the right for the right engine NOTE Check the sealing ring 18 if demaged replace with new one see 72 02 00 Table 203 item 73 6 Screw the cross bar 17 to the cover 5 with the bolts 6 7 Adjust the cover 5 in that way that the pipe 7 ferrule hole is in line with the pipe 16 hole 8 Tighten the cover 5 to the cylinder 2 placing the new lockwashers 13...

Page 468: ...Install the valve on the combustion chamber faying surface after about 15 minutes 4 Place the new lockwashers 27 see 72 02 00 Table 203 item 54 under the bolts 25 Locate the grounding 24 under one washer and tighten the bolts 25 with the torque of 5 4 5 9 Nm 0 55 0 6 kGm 48 52 Ib in NOTE Put the pipe clamp 26 on one bolt 25 under the lockwasher 27 on the left valve 5 Secure the bolts 25 bending th...

Page 469: ...PL UE 9E999 1 Compressor middle case 2 Cylinder 3 Outlet 4 Piston 5 Cover 6 Bolt 7 Air pipe 8 Washers 9 Nut with the drainage valve 1 0 Eye ferrule 11 Air pipe 12 Bolt 13 Lockwasher 14 Bolt 1 5 Lockwasher 1 6 Air supply pipe to the signaling device 17 Cross bar 1 8 Sealing ring BV behind the compressor VI stage Dwg 401 ...

Page 470: ... MAINTENANCE MANUAL PZL 10W ENGINE 1997 07 15 75 32 00 Page 405 Export Control Classification PL UE 9E999 1 Screw 2 Spacer plate 3 Nut 4 Valve head 5 Valve case 6 Spacer washer Air bleed valve on the combustion chamber Dwg 402 ...

Page 471: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE Export Control Classification PL UE 9E999 Chapter 77 Monitoring Instruments of Engine Operation 77 Monitoring Instruments of Engine Operation ...

Page 472: ...2 1992 08 28 3 1992 08 28 77 02 00 1 1992 08 28 2 2015 12 30 3 1999 06 15 4 1997 02 28 5 1997 02 28 6 1997 02 28 7 1997 02 28 8 czysta 1997 02 28 9 1992 08 28 10 1992 08 28 11 1997 02 28 12 1992 08 28 13 1992 08 28 14 1997 02 28 15 1992 08 28 16 1992 08 28 17 1992 08 28 401 1992 08 28 402 1992 08 28 403 1992 08 28 404 1992 08 28 77 22 00 1 1992 08 28 2 1992 08 28 3 1992 08 28 4 1992 08 28 5 1992 0...

Page 473: ...in the fuel metering pump 9 C Signalling of the increased engine vibrations 10 D Signalling of the maximum torque exceeding 11 E Signalling of the minimum engine oil pressure 11 F Signalling of the magnetic chips presence in the oil system 12 G Signalling of the fine oil filter choking 12 H Signalling of the fine fuel filter choking 13 I Signalling of the electronic limiter unit state in the AUTOM...

Page 474: ...MPERATURE MEASUREMENT AND LIMITATION SYSTEM DESCRIPTION AND OPERATION 77 22 00 1 1 General information 1 2 Description of the main system assemblies 1 A Thermocouple probe 1 B Thermocouple collector 2 C Thermocouple board 2 D Gas temperature indicator 2 E Electronic limiter unit 3 F Electrohydraulic servo valve 3 3 Operation 3 A Measurement system of the Compressor Turbine Outlet Temperature 3 B C...

Page 475: ...E 9E999 3 Thermocouple board removal and installation 403 A Thermocouple board removal 403 B Thermocouple board installation 403 GAS TEMPERATURE MEASUREMENT AND LIMITATION SYSTEM INSPECTION AND CHECK 77 22 00 601 1 Electric resistance measurement of the thermocouple circuit and insulation resistance in relation to the engine mass 601 ...

Page 476: ...tem in the process of the automatic control of the engine running The airborne recording data system serves to record the basic engine parameters NOTES 1 The record system of the basic engine parameters is presented in the Helicopter Maintenance Manual 2 The control system is described in 73 02 00 Chapter 3 The recording of the engine operation time by the operation time counter is presented in 72...

Page 477: ...II Quantity per set 1 NOTE The UPM 100 torquemeter may be installed with two EBP 3 blocks For such installation the following apply connect the left MF 100 pick up to the left line of the left EBP 3 block and the right MF 100 pick up to the right line of the right EBP 3 block 2 Torque measuring instrument a Type UPM 100M b Quantity one set per two engines c Pick up I Type MF 100M II Quantity per s...

Page 478: ...rator I Type ДTЭ 1 II Quantity 1 III Installation place on the engine see 72 02 00 DESCRIPTION AND OPERATION Dwg 6 item 24 b Indicator I Type ИTЭ 2K II Quantity one per two engines 2 The measuring instrument of the Turbocompressor rotational speed a Pick up I Type 1013 1001 II Quantity 1 III Installation place on the engine see 72 02 00 DESCRIPTION AND OPERATION Dwg 3 item 24 b Indicator I Type 65...

Page 479: ...ed measuring instrument a Pick up I Type 1013 1001 II Quantity 1 III Installation place on the main gearbox b Indicator I Type 6505A 3063 or 57000 003 II Quantity 1 NOTE The indicator presented in su bite m C 2 b is three pointer indicator that indicates the main rotor rotational speed as well as the power turbine rotational speeds of the both engines D The power turbine rotational speed measureme...

Page 480: ...llation place one the engine see 72 02 00 DESCRIPTION AND OPERATION Dwg 3 item 30 b Indicator I Type TCT 2 II Quantity 1 c Indicator I Type 5032 3172 or 65014 003 II Quantity 1 NOTE One of two types of the compressor turbine outlet temperature measuring instruments listed in subitems b and c is used on the helicopter F The engine inlet oil temperature measurement NOTE One of two types of the engin...

Page 481: ...l tank b Indicator I Type 9036 3124 or 0212 014 II Quantity 1 NOTE The indicator presented in subitem F 2 b is two pointer instrument and indicates oil temperature at the engine inlet and so the oil pressure in the engine see subitem G 2 b G The oil pressure measurement in the engine NOTE One of two types of the engine oil pressure measuring instruments listed in subitems 1 and 2 is used on the he...

Page 482: ... 20PZL 1000 200G II Quantity 1 III Installation place on the engine see 72 02 00 DESCRIPTION AND OPERATION Dwg 2 item 12 b Indicator I Type 9036 3124 or 0212 013 II Quantity 1 H Engine operation time and startings number counting 1 The engine operation time and startings counter a Type RL 14 or RL 14 of M series NOTE The helicopter may be equipped with one type or the two types of operation time c...

Page 483: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 77 02 00 1997 02 28 Page 8 Export Control Classification PL UE 9E999 This page left blank intentionally ...

Page 484: ...ng on 3 Signal lamp a Designation ENGINE 1 or ENGINE 2 b Color red The signalling system switches on when the engine turbocompressor rotational speed drops below 58 and the second engine operates at the rating at which the air bleed from behind compressor VI th stage is closed B The operation signalling of the electromagnetic shut down valve on the fuel metering pump 1 Pick up transducer a Type CR...

Page 485: ...alling of the increased engine vibrations 1 Vibration measuring equipment a Type ИВ 500Г b Quantity one set per two engines and min gearbox 2 Pick up a Type MB 03 03 b Quantity 1 c Installation place on the engine see 72 02 00 DESCRIPTION AND OPERATION Dwg 3 item 32 3 Measuring assembly a Type I Adjusting device УсС 6 2 II Electronic unit БЭ 9Г b Quantity I Adjusting device 1 II Electronic unit 1 ...

Page 486: ...d and 2 A 2 d 3 Signal lamps a Alarm I Color yellow b Emergency I Color red The alarm signal lamp yellow switches on when the torque exceeds the value of TQ 109 maximum value for the TAKE OFF rating The emergency signal lamp red switches on when the torque exceeds the value of TQ 139 maximum value for the 2 5 min OEI rating NOTE The signal lamps as per subitem D 3 are situated on the torque meter ...

Page 487: ...ntity 1 c Installation place on the helicopter 2 Signal lamp a Designation ENG 1 CHIP or ENG 2 CHIP b Color yellow The signalling system switches on when the magnetic metal chips occur in the engine oil system G The signalling of the fine oil filter choking 1 Signalling device pick up a Type 53940000022MCOA b Quantity 1 c Installation place on the engine see 72 02 00 DESCRIPTION AND OPERATION Dwg ...

Page 488: ... fuel filter exceeds the value of 0 172 MPa 1 8 kG cm 2 25 psi I The signalling of the electronic limiter unit state in the AUTOMATIC OPERATION mode 1 Measuring assembly a Electronic limiter unit ALAE 2 b Quantity 1 c Installation place on the helicopter 2 Signal lamp a Designation ENG 1 GOV MIN or ENG 2 GOV MIN b Color yellow The signal system switches on when the ALAE 2 electronic limiter unit e...

Page 489: ...or ENG 2 MANUAL GOV b Color yellow The signal system switches on after the ALRT 2A or ALRT 2B shifting on the lower level of the N2 limitation when the CL is shifted in position of αCL 110 120 K The signalling of the 2 5 min OEI rating switching on 1 Signal lamp a Designation ENG 1 2 5 OEI or ENG 2 2 5 OEI b Color yellow The signalling switches on after pushing the 2 5 min OEI button L The signall...

Page 490: ...BLEED b Color green The signalling system switches on when the air bleed valve from behind compressor Vl th stage is opened and the air flows through the opening to the atmosphere N The signalling of the icing protection system opening 1 Signalling device pick up a Type MCTB 0 5AC b Quantity 1 c Installation place on the engine see 72 02 00 DESCRIPTION AND OPERATION Dwg 2 ilem 22 2 Signal lamp a D...

Page 491: ... of the engine icing protection system or the ejection and heating of the dust separator 1 Signalling device pick up a Type MCTB 0 5AC b Quantity 1 c Installation place on the engine see 72 02 00 DESCRIPTION AND OPERATION Dwg 2 ilem 13 2 Signalling device pick up a Type MCTB 1 1A b Quantity 1 c Installation place on the helicopter in the ejection and heating system of the dust separator 3 Signal l...

Page 492: ...fests that the signalled feilure exists in the ejection and heating system of the dust separator R Signalling the air bleed for the helicopter needs 1 Signal lamp a Designation ECU ON b Color green The signalling system switches on when the signal on valve opening In the helicopter system of the air bleed from behind compressor for the needs of the heating and venting of the helicopter cabins is d...

Page 493: ...e and unscrew the nut 1 of the electric lead plug Disconnect the electric lead from the signalling device 2 Unsecure and unscrew the nut 6 of the pipe and next the nut 5 3 Remove the signalling device 2 from the bracket 3 B Pressure signalling device installation NOTE The damper is screwed into the stub of the MCTB 0 1A signalling device which is secured against slipping out the stub by rolling de...

Page 494: ... from the signalling device 2 Unsecure and unscrew the signalling device 3 from the icing protection valve 1 3 Take off the washer 2 from the icing protection valve 1 hole B Pressure signalling device installation 1 Clean with benzine see 72 02 00 Table 202 item 4 the hole in the icing protection valve 1 and insert new washer 2 see 72 02 00 Table 203 item 72 2 Screw in the signalling device 3 into...

Page 495: ...L 10W ENGINE 1992 08 28 77 02 00 Page 403 Export Control Classification PL UE 9E999 1 Plug nut 2 Signalling device pick up 3 Bracket 4 Washer 5 Nut 6 Pipe with washer Removal and installation of the MCTB 1 1A and MCTB 0 1A signalling devices Dwg 401 ...

Page 496: ...CE MANUAL PZL 10W ENGINE 77 02 00 1992 08 28 Page 404 Export Control Classification PL UE 9E999 1 Icing protection valve 2 Washer 3 Signalling device pick up 4 Plug nut Removal and installation of the MCTB 0 5AC signalling device Dwg 402 ...

Page 497: ... system in the electronic limiter unit 6 6 Electrohydraulic servo valve 8 in the metering pump 9 2 Description of the svstem main assemblies A The thermocouple probe see Dwg 2 The thermocouple probes are of the double type i e two identical reciprocally independent thermocouples 5 having separate outside circuits are placed in one housing 6 One of the thermocouples works in the temperature measuri...

Page 498: ...mocouple plug thermoelements and the thermocouple threaded studs and the thermocouple boards is made of the materials as follows 1 Chromel to connect positive electrodes 2 Alumel to connect the negative electrodes The connecting terminals of the thermocouple collector have Ф4 0 16 dia holes positive terminals and Ф5 0 2 dia holes negative terminals which warrant the proper polarity when connecting...

Page 499: ...of four thermocouple plugs located on the engine flows around and heats the thermocouple welds Resulting and averaged thermoelectric force from four thermocouple elements is transmitted from the thermocouple plug terminals to the gas temperature indicator installed in the pilot cockpit The thermocouple collector the thermocouple board and two electric leads connecting the thermocouple board to the...

Page 500: ...to the engine The fuel supply will be limited to such value that no exceeding of the maximum CTOT may occur at given engine rating during the engine starting and at the take off OEl 30 min and OEI 2 5 min The conditions of proper system functioning are the worthiness of its composing elements and appropriate insulation resistance and so the thermocouple circuit electric matching to the electronic ...

Page 501: ...ort Control Classification PL UE 9E999 1 Thermocouples 2 Thermocouple collector 3 Thermocouple board 4 Indicator electric connection 5 Indicator 6 Electronic limiter unit 7 Electric connection 8 Electrohydraulic servo valve 9 Metering pump CTOT measurement and limitation system diagram Dwg 1 ...

Page 502: ...0W ENGINE 77 22 00 1992 08 28 Page 6 Export Control Classification PL UE 9E999 1 Threaded terminal alumel M5 2 Threaded terminal chromel M4 3 Clamping ring 4 Flange 5 Thermocouples 6 Casing 7 Holes for the hot gases flow Double thermocouple plug Dwg 2 ...

Page 503: ... from the seat B The thermocouple plug installation 1 Clean the adhering surfaces of the seat 8 and the thermocouple 6 with the brush soaked in gasoline see 72 02 00 Table 202 item 4 2 Put with the brush on the thermocouple 6 adhering surface the unitorm seal layer of the enamel see 72 02 00 Table 202 item 1 0 3 Wait about 15 minutes and insert the thermocouple plug 6 in the thermocouple seat Lubr...

Page 504: ...move the thermocouple 17 collector together with the shield 21 from the engine B The thermocouple collector installation 1 Place the thermocouple 17 collector together with the shield 21 on the engine in such way that the outside terminal with the collector lead exit is positioned at the left upper engine side 2 Lubricate all threaded studs of the thermocouple plug and thermocouple board 19 insert...

Page 505: ...3 Replace the bolts together with the washers and the thermocouple 19 board B The thermocouple board installation NOTE Lubricate the bolt threads with the grease see 72 02 00 Table 202 item 5 and the insert 18 threaded stud treads of the thermocouple board 19 with the grease see 72 02 00 Table 202 item 7 1 Set the washers see 72 02 00 Table 203 item 34 on the bolts and fasten the thermocouple 19 b...

Page 506: ...NE 77 22 00 1992 08 28 Page 404 Export Control Classification PL UE 9E999 1 Bolt 2 Locking washer 3 Cover 4 Nuts 5 Screw 6 Thermocouple plug 7 Thermocouple collector leads 8 Thermocouple seat adhering surface Thermocouple plug removal and installation Dwg 401 ...

Page 507: ...ng the resistance as per item B but on the second insert D The value of the electric resistance of the thermocouple circuit measured in accordance with items B and C shall be in the range of 0 39 0 45 Ω E Measure the insulation resistance of the thermocouple circuit in relation to the engine mass with the megaohmmeter connecting in succession one lead of the megaohmmeter to the M4 threaded stud an...

Page 508: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE Export Control Classification PL UE 9E999 Chapter 79 Oil System 79 Oil System ...

Page 509: ... Table of Contents 1 1998 07 15 2 1992 08 28 79 02 00 1 1992 08 28 2 1992 08 28 3 1992 08 28 4 1997 02 28 5 6 1997 02 28 7 1992 08 28 8 1992 08 28 9 1992 08 28 10 2015 12 30 11 2015 12 30 12 1992 08 28 13 1998 07 15 14 1998 07 15 101 1992 08 28 301 1992 08 28 401 2008 01 20 402 2008 01 20 403 2008 01 20 404 1992 08 28 405 2008 01 20 406 2008 01 20 501 1992 08 28 601 1992 08 28 701 1992 08 28 702 1...

Page 510: ...ription of oil system main components 2 A Oil delivery pump 2 B Oil scavenge pump 2 C Oil fine filter 2 D Magnetic plugs 3 E Centrifugal air separator 3 F Chip indicator 3 G Oil drain pipe of power turbine speed limiter gearbox 13 OIL SYSTEM TROUBLESHOOTING 79 02 00 101 OIL SYSTEM SERVICING 79 02 00 301 1 Oil refill and change in the engine system 301 2 Oil system internal preservation 301 OIL SYS...

Page 511: ...404 OIL SYSTEM ADJUSTMENT TEST 79 02 00 501 1 Engine oil pressure check and adjustment 501 OIL SYSTEM INSPECTION CHECK 79 02 00 601 1 Inspection of fine filter contamination indicator 601 OIL SYSTEM CLEANING PAINTING 79 02 00 701 1 General 701 A Paste 701 B Chips 701 2 Inspection and cleaning of the fine oil filter and magnetic plugs 701 A Checking the filter contamination indicator position 701 B...

Page 512: ...oviding signals to the indicators in the cockpit as well as chip detector 1 3 and minimum oil pressure pick up 6 providing in the cockpit the lamp warning of chip appearance in the oil or of the oil pressure drop below required value NOTE Oil tank with dust separator oil cooler with thermovalve and chip indicator belong to helicopter oil system 2 Description of oil system operation see Dwg 1 A Del...

Page 513: ...nted through the external tube to the exhaust nozzle and than to the atmosphere The oil tank is vented separately on the helicopter vent system 3 Description of the oil system main components A Oil delivery pump see Dwg 2 The oil delivery pump is a one section gear pump It contains one reduction valve 4 serving for pressure adjustment at the pump outlet Oil inlet stub 2 is located on the pump casi...

Page 514: ...smaller than the value causing the overflow valve opening D Magnetic plugs see Dwg 4 The magnetic plugs are designated to catch magnetic steel particles from the oil scavenged from the engine oil areas The magnetic plug location in the oil area is such that oil flushes the magnet of the plug enabling magnetic particles contained in the oil to deposit on it The magnetic plug assembly consists of th...

Page 515: ...et pick up 11 Oil tank drain valve 12 Delivery pump with reduction valve 13 Chips detector 14 Coarse filter 15 Magnetic plug 16 Fine filter with contamination indicator 17 Scavenge pump with shut off valve 17a Pump section scavenging the oil from accessory gearbox 17b Pump section scavenging the oil from compressor rotor rear bearing area 17c Pump section scavenging the oil from compressor turbine...

Page 516: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1997 02 28 79 02 00 Page 5 6 Export Control Classification PL UE 9E999 Dwg 1 Oil system diagram ...

Page 517: ...8 28 79 02 00 Page 7 Export Control Classification PL UE 9E999 1 Pump casing 2 Oil inlet stub 3 Spline shaft pump drive 4 Reduction valve 4a Cap nut 4b Washer 4c Lock nut 4d Reduction valve 4e Adjustment screw 5 Oil flow duct to the fine filter Oil delivery pump Dwg 2 ...

Page 518: ...shaft pump drive 2 Pump casing 3 Oil outlet stub to oil cooler 4 Stub oil scavenge from power turbine rotor bearing areas 5 Stub oil scavenge from compressor turbine rotor bearing area 6 Stub oil scavenge from compressor rotor rear bearing area 7 Stub oil scavenge from accessory gearbox 8 Seal ring 9 Shut off valve Oil scavenge pump Dwg 3 ...

Page 519: ...Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 79 02 00 Page 9 Export Control Classification PL UE 9E999 1 Spring 2 Valve 3 Magnetic plug 4 Casing 5 Seal ring 6 Bottom 7 Oil flow window Magnetic plug Dwg 4 ...

Page 520: ...rs used in the basic variant engines and A variant engines with built in filter contamination indicators Key for Fig 5 and 5a 1 Oil pressure measurement stub pipe 2 Overflow valve 3 Sealing ring 4 Spring 5 Filter frame 6 Indicator nut 7 Transparent dome 8 Indicator pointer 9 Filter contamination indicator 10 Filter cover 11 Washer 12 Filtering element 13 Oil space 14 Pan 15 Cut off valve 16 Retain...

Page 521: ...t in filter contamination indicators Fig 5c Fine oil filter second variant intermediate Key for Fig 5b 5c and 5d 1 Oil pressure measurement stub pipe 2 Spring 3 Ball 4 Sealing ring 5 Spring 6 Filter stem 7 Retaining ring 8 Cover 9 Washers 10 Filtering element 11 Pan 12 Cut off valve 13 Retaining ring 14 Nut Fig 5b Fine oil filter first variant old Fig 5d Fine oil filter third variant new ...

Page 522: ...MANUAL PZL 10W ENGINE 79 02 00 1992 08 28 Page 12 Export Control Classification PL UE 9E999 1 Rotor 2 Sleeve 3 Ball bearing 4 Washer 5 Seal ring 6 Nut 7 Lock 8 Adjustment ring 9 Cover 10 Oil drain 11 Air vent Centrifugal air separator Dwg 6 ...

Page 523: ...ed on the connector 3 of the gearbox 2 with a rubber sealing ring and on the cone connector 6 of the fastener 7 The fastener 7 is connected with the centrifugal air vent of the inlet case and drains the air separated from oil to the engine exhaust pipe The cone connector 6 has a chocking hole that together with the hole 5 of the pipe 4 located from the side of the gearbox 2 provides keeping minima...

Page 524: ...TENANCE MANUAL PZL 10W ENGINE 79 02 00 1998 07 15 Page 14 Export Control Classification PL UE 9E999 1 PT speed limiter 2 Gearbox 3 Connector 4 Dram pipe 5 Hole 6 Connector 7 Fastener Oil Drain Pipe of PT Speed Limiter Gearbox Fig 7 ...

Page 525: ...ENANCE MANUAL PZL 10W ENGINE 1992 08 28 79 02 00 Page 101 Export Control Classification PL UE 9E999 OIL SYSTEM TROUBLESHOOTING Oil system failure detection and removal procedures are described in the Section 72 02 00 TROUBLESHOOTING ...

Page 526: ...02 00 Page 301 Export Control Classification PL UE 9E999 OIL SYSTEM SERVICING 1 Oil refill and change in the engine system Refill and change the oil acc to Section 70 02 00 SERVICING 2 Oil system internal preservation Preserve the oil system acc to Section 72 02 00 SERVICING ...

Page 527: ... handling plugs from the new pump on the stub 2 and oil flow duct 7 or wrap the stub flange with polyethylene foil B Oil delivery pump Installation NOTE Carry out the installation of the oil pump on the case of drive gearbox taking into account requirements see 72 02 00 MAINTENANCE PRACTICES clause 3 E 1 Remove the handling plugs 2 Drain the oil from the pump internal spaces 3 Inspect the pump for...

Page 528: ...ain 1 Motoring cold the engine see 71 02 00 ADJUSTMENT TEST Para 3 C check attachment surfaces of the pump and oil tube for leakages 2 Start the engine on the ground see 71 02 00 ADJUSTMENT TEST Para 3 E At the ground idle warm up the oil to the temp of 313 K 40 C 104 F at the engine inlet 3 Increase the engine rating to nominal and check oil pressure 4 Shut down the engine see 71 02 00 ADJUSTMENT...

Page 529: ... SEE 72 02 00 TABLE 203 ITEM 27 5 Prepare the adhering surfaces of case of drive gearbox washer 9 and pump 8 in order to connect these units Next put the leak stopper see 72 02 00 Table 202 item 45 on both sides of the washer 9 see 72 02 00 Table 203 item 28 6 Put the washer 9 and oil pump 8 on the bolts 11 in such a way to insert the splines of tip of pinion in the notches of pump drive in the dr...

Page 530: ...see Dwg 5 A Unsecure and unscrew the indicator 9 from the filter cover 10 B Check the new indicator for the lack of mechanical damages C Screw in the new indicator 9 into the filter cover 10 retaining with a wrench D Safety wire the indicator 9 against screwing off E Motoring cold the engine see 71 02 00 ADJUSTMENT TEST item 3 C F Start the engine on t h e ground see 71 02 00 ADJUSTMENT TEST item ...

Page 531: ...01 20 79 02 00 Page 405 Export Control Classification PL UE 9E999 1 Nut oil supply tube 2 Stub 3 Selflocking nut 4 Washer 5 Pump oil deliver 6 Washer 7 Oil flow duct 8 Seal ring 9 Seal ring 10 Bolt accessory gearbox Oil delivery pump removal and installation Dwg 401 ...

Page 532: ...enge tube from the power turbine rotor bearing area 3 Nut oil scavenge tube from the compressor rotor rear bearing area 4 Nut oil scavenge tube from the compressor turbine rotor bearing area 5 Nut oil scavenge tube from the accessory gearbox 6 Selflocking nut 7 Washer 8 Pump oil scavenge 9 Washer 10 Seal ring 11 Bolt accessory gearbox Oil scavenge pump removal and installation Dwg 402 ...

Page 533: ...MANUAL PZL 10W ENGINE 1992 08 28 79 02 00 Page 501 Export Control Classification PL UE 9E999 OIL SYSTEM ADJUSTMENT TEST 1 Engine oil pressure check and adjustment Check and adjustment the oil pressure acc to Section 71 02 00 ADJUSTMENT TEST ...

Page 534: ...W ENGINE 1992 08 28 79 02 00 Page 601 Export Control Classification PL UE 9E999 OIL SYSTEM INSPECTION CHECK 1 Inspection or tine oil filter contamination indicator Check the position of the filter contamination indicator acc to Section CLEANING PAINTING ...

Page 535: ...eed acc to 72 02 00 TROUBLESHOOTING NOTE Some bearings have silver plated cages Appearance of fine silver particles on the oil filter or in the oil drained from the oil areas above the magnetic plug does not reflect abnormal situation and therefore no special procedure related is required 2 Inspection and cleaning of the fine oil filter and magnetic plugs A Checking the filter contamination indica...

Page 536: ... 16 cup 14 washers 11 count them filtering elements 12 washer 11 spring 4 5 Remove the oil from the oil area 1 3 using syringe or similar devise 6 Place the filtering elements on the fixture see Airborne Tools in following order seal ring filtering element seal ring filtering element etc Tighten the nut on the fixture to eliminate the clearance between the seal rings and filtering elements 7 Place...

Page 537: ... Install the assembled niter into the housing 13 screw on the four nuts 18 fastening the cover 10 torque 2 4 Nm 0 2 0 4 kGm and lock them WARNING BEFORE OIL FILTER CLEANING GROUND THE CONTAINER WITH CLEANING MEDIUM FUEL SOLVENT NOTE In case chips are found on the filter proceed acc to failure detection and removal procedure in Section 72 02 00 TROUBLESHOOTING C Magnetic plugs inspection and cleani...

Page 538: ... MANUAL PZL 10W ENGINE 79 02 00 1996 09 05 Page 704 Export Control Classification PL UE 9E999 6 Secure the magnetic plug with wire NOTE In case of chip appearance on the plug proceed acc to the procedure of Section 72 02 00 TROUBLESHOOTING ...

Page 539: ...lled on the bracket near to the fine oil filter installation place see 72 02 00 DESCRIPTION AND OPERATION Dwg 3 Reading of the pressure value on the indicator in the pilot cockpit 3 Minimum oil pressure in the engine Signalling device of the minimum oil pressure is installed on the same bracket as the oil pressure pick up see subitem 2 The signalling by the signalling lamp light on in the pilot co...

Page 540: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE Export Control Classification PL UE 9E999 Chapter 80 Starting System 80 Starting System ...

Page 541: ...1999 02 15 80 02 00 1 2004 08 28 2 2004 08 28 3 2004 08 28 4 2004 08 28 5 2004 08 28 6 1992 08 28 7 1992 08 28 8 1992 08 28 9 1992 08 28 10 2004 08 28 101 1992 08 28 401 1992 08 28 402 1992 08 28 403 1992 08 28 404 1997 02 28 405 1992 08 28 406 2015 12 30 407 1992 08 28 408 1992 08 28 409 1992 08 28 410 1992 08 28 411 1992 08 28 412 2008 01 20 413 1992 08 28 414 1992 08 28 415 1992 08 28 416 1992 ...

Page 542: ...art on the Ground 3 B Engine Wet Motoring 5 C Engine Cold Motoring 5 D Engine Start in the Flight 5 E Interrupted Starting 5 STARTING SYSTEM TROUBLESHOOTING 80 02 00 101 STARTING SYSTEM REMOVAL AND INSTALLATION 80 02 00 401 1 Removal and installation of electric motor starter 401 A Removal of electric motor starter 401 B Installation of electric motor starter 402 2 Removal and installation of the ...

Page 543: ...acement of Starting Fuel Nozzle Injector and Filter in Ignition U 413 6 Removal and Installation of Spark Plug 414 A Removal of Spark Plug 414 B Installation of Spark Plug 414 7 Removal and Installation of Igniter 415 B Removal of Igniter 415 C Installation of Igniter 415 STARTING SYSTEM ADJUSTMENT AND TEST 80 02 00 501 1 Operating requirements 501 A Continuous ignition operating requirements 501 ...

Page 544: ... installed on a helicopter 7 airborne batteries installed on a helicopter 8 switchgear relays contactors change over switches push buttons installed on a helicopter 2 Description A Starter Electric starter see Dwg 1 is an electric direct current four pole series motor made as two line system Basic data 1 d c supply voltage 16V 30V 2 interval of time between switching on of starter no shorter than ...

Page 545: ...after being fine sprayed it is injected through main hole into i combustion area 3 Spark plug Surface discharging spark plug 4 ensure ignition of air fuel mixture It works together co operates with low voltage igniter Central and lateral electrodes form a ring space filled by ceramic insulator Current is supplied into central electrode when lateral electrode ensures electric connection with the gr...

Page 546: ... capacity of 25 Ah each and voltage of 24V are installed on a helicopter They stabilize voltage and ensure the autonomous engine starts under normal operation conditions and they are the airborne energy source under emergency condition 3 Operation The engine start is done by pushing the START push button and opening of main fuel by means of advancing the control level into START position Motoring ...

Page 547: ...ion chamber through centrifugal fuel nozzle The beginning of main fuel supply is controlled by outlet valve on fuel metering pump which opens at rotation speed N1 10 14 The ignition of main fuel shall occur no latter than 15 seconds since the moment of pushing the START push button and since that time compressor turbine affected by operation of gas forces takes the part of load involved in running...

Page 548: ...witch on and the starting fuel valve does not open Motor starter operation cycle lasts 24 seconds and after that time its switch off takes place D Engine Start in the Flight During engine start in flight the electric system operation is the same as during engine start on ground see item 3 A E Interrupted Starting Electric system allows stoppage of any engine start by pressing the ABORT button At t...

Page 549: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 80 02 00 1992 08 28 Page 6 Export Control Classification PL UE 9E999 Starter Dwg 1 ...

Page 550: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 80 02 00 Page 7 Export Control Classification PL UE 9E999 1 High voltage connection 2 Low voltage connection Igniter Dwg 2 ...

Page 551: ...08 28 Page 8 Export Control Classification PL UE 9E999 1 Pipe 2 Sleeve 3 Sealing washer 4 Spark plug 5 Ignition unit case 6 Nut 7 Fuel filter 8 Nozzle case 9 Injector 10 Spark plug seat 11 Injection seat 12 Cooling air inlet duct 13 Combustion chamber case Ignition Unit Dwg 3 ...

Page 552: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 80 02 00 Page 9 Export Control Classification PL UE 9E999 Relays box Dwg 4 ...

Page 553: ... 1 Control contractors 2 Relays box or start up controller 3 Starting fuel electromagnetic valve 4 Starting fuel metering element 5 Fuel metering pump 6 Nozzles 7 Spark plugs 8 Igniter 9 Compressor turbine rotation speed pick up 10 Starting resistors R and R 11 Electronic limiter unit 12 Relay 13 Starter Engine starting system schematic diagram Dwg 5 ...

Page 554: ... S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 80 02 00 Page 101 Export Control Classification PL UE 9E999 STARTING SYSTEM TROUBLESHOOTING Troubleshooting for starting system is stated in section 72 02 00 TROUBLESHOOTING ...

Page 555: ...nector 23 and shield connector 25 8 Take off shield connector 25 from motor starter connector 23 NOTE If you find that there is the necesity to replace driving halt coupling 13 and or driven half coupling 27 follow per pnt 3 9 Measure distance between outer surface of motor starter connector 23 and the end of teeth of driving half coupling 13 see Dwg 402 a In coupling state half coupling pushed ma...

Page 556: ...16 Calculate distance between the end of teeth of driven half coupling 27 and inlet case flange face Dwg 402 dimension A A L B 17 Inspect condition of visible surface of felt braking ring 22 mounted into electric motor starter connector 23 If that ring is damaged or slipped of the seat install it in case of its damage replace it performing operations acc to item 2 18 Unsecure and unscrew the screw...

Page 557: ...or 23 and the end of teeth of driving half coupling 13 see Dwg 402 a in the state corresponding with coupling half coupling pushed maximum away from electric motor starter dimension D b in the state corresponding with decoupling half coupling maximally pushed close to electric motor starter dimension C 6 Calculate from the results of measurement carried out acc to items A 16 and B 5 a value of dec...

Page 558: ...ase flange 11 Install electric motor starter connector 23 on electric motor starter flange 8 place washers 29 on screws screw on new nuts 28 see 72 02 00 Table 203 item 36 by torque wrench see 72 02 00 Table 201 item 20 21 applying torque 11 8 14 7 Nm 1 2 1 5 kGm 104 130 Lb in WARNING DURING INSTALLATION OF ELECTRIC MOTOR STARTER CONNECTOR 23 PAY ATTENTION SO THAT BRAKING RING DOES NOT SLIP OFF TH...

Page 559: ...a way so that the threaded part came first on the screw 22 Place shield 4 on electric motor starter 8 until resistance placing down the arrow vertical axis of the engine Tighten the screw 1 by torque wrench see 72 02 00 Table 201 item 20 25 applying the torque of 2 Nm 3 9 Nm 0 2 kGm Q 4 kGm 17 lb in 35 lb in and bend lock washer 2 23 Measure using clearance gange on four equally spaced points plac...

Page 560: ...3 restraining ring 22 ring 21 spring 20 ring 19 and expanding ring 18 3 Removal and installation of claw coupling see Dwg 403 NOTE The claw coupling assembly consists of a driving half coupling and a driven half coupling Each half coupling can be replaced without replacing the mating half coupling A Removal of claw coupling 1 Remove driving half coupling 13 during removal of the electric motor sta...

Page 561: ...ew initially screw 34 by torque wrench see 72 02 00 Table 201 item 10 12 with torque of 21 6 Nm 2 2 kGm 191 lb in and then unscrew it and again screw it home applying the torque of 11 8 14 7 Nm 1 2 kGm 1 5 kGm 104 lb in 130 lb in 6 Secure screw 34 by bending the flange of lock 36 in three points on circumference 7 Place assemblied torsional shaft assembly 38 with mounted driven half coupling 27 in...

Page 562: ...02 00 1992 08 28 Page 408 Export Control Classification PL UE 9E999 NOTE Removal and installation of parts marked with number 18 to 22 is performed only when it is necessery to replace felt braking ring 22 Removal and installation of electric motor starter Dwg 401 ...

Page 563: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 1992 08 28 80 02 00 Page 409 Export Control Classification PL UE 9E999 Removal and installation of electric motor starter Dwg 402 ...

Page 564: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 80 02 00 1992 08 28 Page 410 Export Control Classification PL UE 9E999 Disassembly and replacement of driven half coupling Dwg 403 ...

Page 565: ...ric motor starter 9 Gland seal 10 Spring 11 Expanding ring 12 Shim 5 sizes of thickness from 1 to 3 mm 0 04 to 0 12 in by 0 5 mm 0 02in 13 Driving half coupling 14 Seating ring 15 Screw 16 Washer 17 Sealing ring 18 Expanding ring 19 Ring 20 Spring 21 Ring 22 Felt braking ring 23 Motor starter connector 24 Sealing ring 25 Shield connector 26 Washer 27 Driven half coupling 28 Nut 29 Washer 30 Screw ...

Page 566: ...42 on both sides of the metal washer 2 see 72 02 00 Table 203 item 10 3 Put the washer 2 on the flange of combustion chamber case and install the ignition unit 4 Cover with lubricant see 72 02 00 Table 202 item 5 the screws 8 fastening the ignition unit and screw them down by tightening them with spanner in accordance with requirements and secure them by wire 5 Unscrew the nut 12 by one turn conne...

Page 567: ...inlet pipe B Undo nut 1 2 and remove connections 10 and 10a and washers 11 C Remove and inspect filter 13 If necessary wash filter in the following order 1 Immerse filter fully in vessel with solvent see 72 02 00 Tabel 202 item 3 for a period of 20 30 minutes 2 Wash filter gauze in above solvent using a brush 3 Again wash the filter gauze with a brush in clean solvent see 72 02 00 Table 202 item 3...

Page 568: ...orm engine starting on the ground see 71 02 00 ADJUSTMENT AND TEST item 3 E Run the engine on ground idle rating for 2 3 minutes M Shutdown the engine see 71 02 00 ADJUSTMENT AND TEST item 3 G N Inspect if there is any leakage on joint areas of starting fuel pipes with connection 10 or 10a Any leakage is not permissable 6 Removal and Installation of Spark Plug see Dwq 404 A Removal of Spark Plug 1...

Page 569: ...1 and nuts of high voltage cable 10 disconnect cables CAUTION IT IS FORBIDDEN TO TWIST CABLE S BRAID WHEN UNDOING THE NUTS 2 Undo the nuts 9 from screws 2 fastening igniter to brackets 7 and remove washer 4 and shock absorber 8 3 Remove igniter 1 from the engine then sleeves 6 springs 5 washers 4 screws 2 and grounding lead 3 from one side of igniter NOTE Preserve and pack The igniter removed from...

Page 570: ... 8 washer 4 and screw a new self locking nut 9 see 72 02 00 Table 203 item 39 5 Connect high voltage cables 10 and low voltage cables 11 into igniter Tighten the cable nut and secure by a wire CAUTION IT IS FORBIDDEN TO TWIST CABLE S BRAID WHEN SCREWING THE NUTS 6 Perform engine starting on the ground see 71 02 00 ADJUSTMENT TEST item 3 E Run the engine on ground idle rating for 2 3 minutes monito...

Page 571: ...ignition unit 9a Nut of the fuel pipe left ignition unit 10 Right ignition unit connector 10a Left ignition unit connector 11 Washers 12 Nut 13 Fuel filter 14 Fuel nozzle case 15 Injector Dwg 404 Removal and installation of ignition unit 2008 01 20 80 02 00 Page 417 Export Control Classification PL UE 9E999 Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE ...

Page 572: ...Pratt Whitney Rzeszów S A MAINTENANCE MANUAL PZL 10W ENGINE 80 02 00 2008 01 20 Page 418 Export Control Classification PL UE 9E999 Page left empty intentionally ...

Page 573: ...8 80 02 00 Page 419 Export Control Classification PL UE 9E999 1 Igniter 2 Screw 3 Grounding lead 4 Washer 5 Absorber 6 Sleeve 7 Bracket on compressor case 8 Absorber 9 Self locking nut 10 High voltage cable 11 Low voltage cable Removal and installation of igniter Dwg 405 ...

Page 574: ...uous ignition 24 s 2 The lowest speed of the compressor allowed for operation with the continuous ignition switched on 25 3 Max gas temperature during the engine restart conditions with the continuous ignition switched on 998 K 725 C 1 337 F CAUTION IN CASE THE ENGINE GAS TEMPERATURE EXCEED THE ABOVE LIMIT DURING THE AFTER FLIGHT CHECK INSPECT THE BLADES OF THE 1ST STAGE COMPRESSOR TURBINE ROTOR R...

Page 575: ...ce face of spark plug does not make contact to engine metal elements 4 Press the START button and check the operation of spark plug for 2 3 seconds Sparking shall be free from any trouble disturbance and breaks After 3 seconds press the button ABORT CAUTION 1 IN CASE OF ANY DISTURBANCES AND BREAKS OF SPARKING THE SPARK PLUG SHALL BE REPLACED SEE 72 02 00 TABLE 203 ITEM 14 2 THE OPERATION OF IGNITE...

Page 576: ...elow or more replace the ignition unit for healthy or new unit refer to 72 02 00 Table 203 item 88 or 89 In case the carbon deposits are discovered on the starting fuel nozzle face inspect the nozzle refer to REMOVAL AND INSTALLATION item 5 and remove the carbon deposits from the body surface 4 adjacent to the nozzle Dwg 601 Ignition Unit 1 Electroerosive plug 2 Plug protective sleeve dashed line ...

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