T50-Y Service Manual - RJ Mann & Associates, Inc
Contents
1. Figure 11 Turbine Bearing Shaft Installation 5 2 2 ROTOR 1 INSTALLATION Turn the turbine nozzle over exhaust end up and install the labyrinth 17 onto the shaft Press the square key 7 into the keyway of turbine shaft 22 until seated Install stage 1 rotor 16 by sliding over turbine shaft MATERIALS SOURCE Petroleum Jelly Commercially Available Parker O Ring Lube Commercially Available 22 while simultaneously aligning the key with the keyway in the rotor Check for proper orientation as this rotor can be installed backwards Aeroshell 46 Grease Commercially Available Loctite RC290 Commercially Available TDI P N 9 94121 001 5 2 3 STAGE 2 NOZLE INSTALLATION Table 6 Materials for Assembly 5 2 TURBINE HOUSING 5 2 1 TURBINE BEARING INSTALLATION Press the turbine bearing 8 onto the turbine shaft 22 until seated Press the turbine bearing shaft assembly 8 22 into the turbine housing 19 Use press tool P N 2 26943 if required per figure 11 Do not press on the end of the shaft because the load could damage the bearing balls Install the bearing retainer 20 into the turbine housing 19 and secure with three screws 21 Torque to 75 in Ibs Install o ring 18 onto aft end of turbine housing 19 Page 10 Install turbine housing 19 into nozzle 2 containment housing 14 NOTE The air inlet port on nozzle 2 must be aligned with the casting indentation on the2. E a TECH DEVELOPMENT Publication T5 708 Rev 1 Dated August 14 2009 SERVICE MANUAL MODEL T50 Y TURBOTWIN Engine Air Starter yyy pb bh JY 2 y OS 44 x JA Pa e uL TURBOTWIN AIR STARTERS ii y gt gt d h v SU s fe AN 02 458 m SS i Engine Controls amp Panela Compressor Parts 860 North 9th Avenue Brighton CO 80603 Ph 303 659 5139 Fax 303 659 5309 www rjmann com TDI TURBOTWIN FROM TECH DEVELOPMENT TABLE OF CONTENTS SECTION SUBJECT PAGE 1 0 dgligejo Ulei olp METRE EE EEE 1 2 0 Description of Basic Groups 3 3 0 Disassembly 5 4 0 Cleaning 8 Inspection 7 5 0 ASSOMDIY cc ccc ceeceeeeeeeseeeeeeeeaaes 10 6 0 Parle lel S eaten a a RA 13 LIST OF ILLUSTRATIONS FIGURE TITLE PAGE 1 TDI TURBOTWIN Nameplate 2 2 T50 Series Part Number Identification 2 3 Turbine Housing Assembly 3 4 Gearbox Assembly 4 5 Drive Assembly 4 6 Carrier Shaft Disassembly 5 7 Turbine Rotor Removal 6 8 Turbine Shaft removal 6 9 Nozzle 2 Remowval 6 10 Gear Teeth Wear Allowance 9 11 Turbine Bearing Shaft Installation 10 12 Exploded View of T50 Y Air Starter
3. 15 13 Exploded View S N 0610 0994 amp after 16 Page i Publication T5 708 Rev 1 Issued August 14 2009 SECTION 1 0 INTRODUCTION 1 1 GENERAL INFORMATION This manual provides information for servicing disassembly and re assembly of the TDI Turbotwin T50 Y air starter If there are questions not answered by this manual please contact your local TDI distributor or dealer for assistance Illustrations and exploded views are provided to aid in disassembly and re assembly The TDI Turbotwin T50 Y engine air starter is specially designed for starting today s automated low emission engines The Turbotwin uses aerodynamic speed control allowing for cranking torque throughout the start cycle The Turbotwin T50 Y air starter is suited to operate within a wide range of inlet pressures and ambient temperatures This starter is designed for operation on compressed air only The robust turbine motor design in the T50 Y air starter has no rubbing parts and therefore is tolerant of hard and liquid contamination in the supply air As with all TDI air starter products there are no rubbing parts so there is no lubrication required This eliminates failures due to lubricator problems the expense of installing and maintaining the system and the messy and hazardous oil film around the starter exhaust The starter is factory grease packed for the life of the starter so it requires no maintenance Please review the rest of this manu
4. 19 Turbine Hsg Stage 1 14 Noz RH 2 28354 MR 1 I Hsg Stage 1 14 Noz LH 2 28354 14L 1 20 BearingRetainer p 280406 1 gt 21 Screw p1F2500 02 3 v 22 Turbine Shaft 11 2 1 p 28339 1 gt o 25 Carrier Shaft Assembly 2 28358 001 1 26 RetainingRing 992001 001 3 O17 amp Co NO N AAN ee m Publication T5 708 Rev 1 Page 13 Issued August 14 2009 TDI TURBOTWIN FROM TECH DEVELOPMENT 28 _ Planet Gear Spacer 9304 6 9 91405 044 4 LX NI Ni 4 Y 39 Lip Seal 42 O Ring f99002338 1 yoo 43 Pre engage Piston 142246440001 1 46 Dive 35 S p2272504 1 47 RetumSping 9 904300 48 RetanerRng 5992001011 1 51 PimonHouing SAE3 228552 53 Collar Pinon 223908 J 54 Code 01 6 8P 12 11T 20PA RH 23910 0001 1 54 Code 05 3 Mod 11T 14 5 PA RH 2 23910 005 1 54 Code 06 3 5 Mod 11T 14 5 PA RH 2 23910 006 1 0 54 Code 11 3 5 Mod 177 145 PA RH 2 23910 011 1 54 Code 21 3 5 Mod 157 14 5 PA RH 2 23910 021 1 54 Code 22 3 5 Mod 15T 14 5 PA LH 2 23910 022 1 NI Ax Page 14 Publication T5 708 Rev 1 Issued August 14 2009 TDI TURBOTWIN FROM TECH DEVELOPMENT igure 12
5. Exploded view of 150 Y TURBO WIN air starter Publication T5 708 Rev 1 Page 15 Issued August 14 2009 TDI TURBOTWIN FROM TECH DEVELOPMENT T50 P TURBINE ASSEMBLY effective serial 0610 0994 NE eee Overhaul Kit PART NUMBER T50P 28533 001 24 BearngSpacer 9 983114 NN V 24A LipSeal Q 26719 V 26 Turbine Hsg Stage 1 8 Noz RH 2 28354 08R 26 Turbine Hsg Stage 1 8 Noz LH 2 28354 08L 26 Turbine Hsg Stage 1 10 Noz RH 2 28354 10R 26 Turbine Hsg Stage 1 10 Noz LH 2 28354 10L 26 Turbine Hsg Stage 1 14 Noz RH 2 28354 14R 26 Turbine Hsg Stage 1 14 Noz LH 2 28354 14L 27 _ Bearing Retainer 2 27406 28 Screw 71F 25020 012 Figure 13 Model T50 Series Turbine Assembly Configured for Air amp Natural Gas Effective serial 0610 0994 Page 16 Publication T5 708 Rev 1 Issued August 14 2009
6. Removal Remove screws 1 exhaust guard 2 and exhaust support 3 Secure the stage 2 rotor 6 and remove the turbine screw 4 and washer 5 NOTE The sun gear 22 may have to be held firmly in a soft jaw vise when removing turbine screw Install rotor puller tool P N 52 20076 and remove the stage 2 rotor per figure 7 SQUARE KEY 7 Ey 2 PULLER TOOL 52 20076 Figure 7 Turbine Rotor Removal Remove the square key 7 from turbine shaft 22 3 4 2 Turbine Housing Disassembly Place the turbine on a firm surface with the sun gear end facing up Remove three screws 21 and bearing retainer 20 from turbine housing 19 With the exhaust end facing up press turbine shaft 22 through turbine housing 19 as shown in figure 8 Page 6 TDI TURBOTWIN FROM TECH DEVELOPMENT Press turbine shaft 22 through forward bearing 8 to remove bearing from shaft PRESSING TOOL ROTOR STG 1 16 NN SMe N TURBINE SHAFT 22 NOZZLE STAGE 1 19 NOZZLE 2 CONTAINMENT RING 14 Figure 8 Turbine Shaft Removal Remove the aft bearing 8 wavy washers 9 and labyrinth 10 from containment housing 14 Install three screws 35 removed from the gearbox housing into the jack holes on the turbine housing 19 as shown in figure 9 NOZZLE STAGE 1 19 1 4 20 UNC SCREW ZMED RO o eS OK A OK A IO IESG C v MN SLE SS Rx ets CNN MASS NOZZLE 2 CONT
7. the turbine drive advantages It must be installed in accordance with the instructions provided by Tech Development Inc TDI WARNING Failure to properly install the starter or failure to operate it according to instructions provided by TDI may result in damage to the starter or engine or cause personal injury DO NOT OPERATE THIS STARTER UNLESS IT ENGINE IS PROPERLY ATTACHED TO AN Repair technicians or service organizations without turbine starter experience should not attempt to repair this starter until they receive factory approved training from TDI or its representatives Proper operation and repair of your TDI Turbotwin will assure continuous reliability and superior performance for many years Page 1 TDI TURBOTWIN FROM TECH DEVELOPMENT 1 5 NAMEPLATE INFORMATION The nameplate located on the turbine housing provides TURBOTWIN important information regarding the construction of your PNUEMATIC STARTER T50 Y air starter refer to Figure 1 The part number TECH DEVELOPMENT INC 6800 POE AVE DAYTON OH coding explanation refer to Figure 2 can help you MODELNO SERIAL NO CW RH CCW LH when talking to your distributor T50Y 0110 655 NOTE You should always have the starters Part Number Serial Number Operating Pressure and Direction of PART NUMBER T510 60051 01R HOUSING PROOF PRESSURE IS 600 PSIG MAX OPERATING INLET PRESS PSIG WARNING po not OPERATE UNLOADED WITHOUT EXHAST G
8. to knurl keyed connection exceed 005 depth Wear must not exceed limits per Table 4 Wear must not exceed limits per Table 4 Sungear Turbine Cracks scoring wear Shaft grooves chipped or broken gear teeth galling or scoring on bearing surface of shaft Raised metal on the keyway Wear must not exceed limits per Table 4 Parallelism of end surfaces Ends must be parallel within 0 0005 Turbine Housing Cracks and breakage Cracks and breakage are not acceptable ug pd Minor surface damage is permitted if function is not impaired broken gear teeth Needle Bearings Freedom of needle rollers Replace bearings Ball bearings Freedom of rotation without Replace bearings excessive play between races Containment Corrosion erosion cracks Cracks and breakage are not acceptable Ring Nozzle and broken nozzle edges Minor surface damage is permitted if function is not impaired Turbine Rotors Corrosion erosion cracks Minor tip rub is permitted if function is not and broken edges impaired Bore and key way wear Wear is not permitted Table 3 Parts Inspection Check Requirements Page 8 Publication T5 708 Rev 1 Issued August 14 2009 PART DESCRIPTION LIMIT Inches Ring gear Turbine Housing Internal measurement between two 072 diameter 4 6655 max pins Sun Gear Turbine Shaft Bearing diameter External measurement over two 072 diameter pins 11 2 1 5566 min Planet Gear External measurement o
9. washer 9 The ring gear 24 is installed between the turbine assembly 19 and the gearbox housing and secured by four screws Figure 3 Turbine Housing Assembly Publication T5 708 Rev 1 Issued August 14 2009 Page 3 2 3 GEARBOX HOUSING ASSEMBLY The gearbox housing assembly refer to figure 4 consists of a planet gear carrier and output shaft 25 three planet gears 29 needle bearings 30 spacers 28 and planet shafts 27 2 4 DRIVE ASSEMBLY The drive assembly refer to figure 5 consists of a pre engagement drive 46 and drive housing 51 Twelve screws 52 secure the drive housing to the gearbox housing The pinion 54 is secured by screw 56 Page 4 Figure 4 Gearbox Housing Assembly Figure 5 Drive Assembly TDI TURBOTWIN FROM TECH DEVELOPMENT The carrier shaft 25 is mounted on a single bearing 31 in the gearbox housing 34 The retainer ring 41 secures the carrier shaft in the gearbox housing The bearing housing 37 and pre engaged piston 43 are housing installed in the gearbox 34 E s The pre engagement drive 46 is mounted in a needle bearing 49 which is installed in the drive housing 51 Split rings 45 and a return spring 47 aid in the disengagement of the pinion from the engine s ring gear Publication T5 708 Rev 1 Issued August 14 2009 SECTION 3 0 DISASSEMBLY 3 1 GENERAL Always mark adjacent parts on the starter Nozzle 2 Con
10. 2 USE CODE 402 THIS IS A LH VERSION 13 3 5 MOD 14T ON 14 7T BLANK 1 929 PD 14 5 PA 14 8 10DP 12T ON 12T BLANK 1 500 PD 20 PA 15 4 25 MOD 11T ON 11T BLANK 1 840 PD 20 PA 167 6 8DP 12T ON 12 7T BLANK 2 126 PD 20 PA 17 USE CODE 01 THIS IS A LH VERSION 18 USE CODE 407 THIS IS A LH VERSION 19 8 10 DP 12T ON 13T BLANK 1 625 PD 20 PA 20 3 5 MOD 14T ON 14 7T BLANK 2 026 PD 20 PA 21 4 MOD 15T ON 15 65T BLANK 2 465 PD 0 325 CORRECTION FACTOR 14 5 PA 22 3 5 MOD 14T ON 14 68T BLANK 2 023 PD 0 34 CORRECTION FACTOR 14 5 PA 23 3 5 MOD 14T 2 023 PD 0 34 CORRECTION FACTOR 20 PA 5 NOT AVAILABLE 6 NOT AVAILABLE 7 NOT AVAILABLE 8 NOT AVAILABLE Figure 2 T50 Series Part Number Identification Page 2 Publication T5 708 Rev 1 Issued August 14 2009 SECTION 2 0 DESCRIPTION OF BASIC GROUPS 2 1 GENERAL The TDI Turbotwin T50 Y air starter is a lightweight compact unit driven by a two stage turbine air motor The starter is composed of three basic assembly groups Turbine Housing Assembly Gearbox Housing Assembly and Drive Assembly TDI TURBOTWIN FROM TECH DEVELOPMENT 2 2 TURBINE HOUSING ASSEMBLY The Turbine housing assembly refer to figure 3 consists of a stage one 16 and a stage two 6 turbine rotor mounted on sungear shaft 22 The front bearing 8 is secured by a retainer plate 20 and the aft bearing is pre load by a spring
11. 9 gal of phosphoric acid 1 5 gal of nitric acid with enough water to make a total of 10 gal of solution WARNING Follow all instructions provided with the MSDS sheets on the materials and compounds listed above 4 2 INSPECTION Use Table 3 as a guide to check for acceptable Check all bearing bores for wear condition of the parts listed Check gear teeth and turbine housing ring gear for Check all threaded parts for galled crossed stripped or Wear In general visually check for spalling fretting broken threads surface flaking chipping splitting and corrosion If wear is apparent check the gear teeth dimensions in Check all parts for cracks corrosion distortion scoring accordance with Table 4 Nicks and dents that cannot or general damage be felt with a 020 inch radius scribe are acceptable Publication T5 708 Rev 1 Page 7 Issued August 14 2009 TDI TURBOTWIN FROM TECH DEVELOPMENT Description Defective Parts Must Be Replaced Defective unit to be replaced Use figure 10 as a guideline for acceptable pinion wear Cracks and breakage Cracks are not acceptable Planet Gear Cracked chipped worn or Wear must not exceed limits per table 4 galled teeth There shall be no evidence of excessive wear Carrier Shaft Cracks scoring or raised Deformation of metal smearing in planet metal in planet shaft holes pin holes amp keyways not acceptable and keyways Integrity of Scoring on bearing diameter not
12. AINMENT RING 14 Figure 9 Nozzle 2 Removal Turn the screws in sequence until the turbine housing 19 is completely removed from the containment housing 14 Remove the stage 1 rotor 16 and square key 7 from containment housing 14 Publication T5 708 Rev 1 Issued August 14 2009 TDI TURBOTWIN FROM TECH DEVELOPMENT Clean aluminum parts using the solutions per Table 2 soak for 5 minutes Remove parts rinse in hot water SECTION 4 0 CLEANING amp INSPECTION and dry thoroughly 4 1 CLEANING Clean corroded steel parts with a commercially approved stripper Degrease all metal parts except bearings using a commercially approved solvent Refer to Table 2 Clean corroded aluminum parts by cleaning as stated above and then immerse the parts in chromic nitric NOTE phosphoric acid pickle solution per Table 2 Rinse in hot water and dry thoroughly Never wash bendix assembly or bearings in cleaning solvents t is recommended bearings be replaced with new parts Table 2 Cleaning Materials and Compounds Aluminum Cleaning Solution Diversey Corp 212 W Monroe Chicago IL 60606 Dissolve 5 oz of Diversey 808 per gallon of water at 155 165 F Steel Cleaner Rust amp Corrosion Oakite Products Corp 50 Valley Rd Berkeley Heights NJ 07992 Mix 3 5 Ib of Oakite rust Stripper per gallon of water use at 160 180 F Chromic Nitric Phosphoric Acid Pickle Solution Mix 8lb of chromic acid 1
13. UARD OR WITHOUT EXHAUST FITTING Rotation information before calling your TDI distributor or dealer Figure 1 TDI TURBOTWIN Nameplate T5 10 60048 01R 0 00 MODEL T50 PRODUCT ORIENTATION OF INLET CONTROL PORTS NUMBER OF NOZZLES 00 0 DEGREES STD 07 210 DEGREES 08 8 NOZZLES 01 30 DEGREES 08 240 DEGREES 10 10 NOZZLES 02 60 DEGREES 09 270 DEGREES 14 14 NOZZLES 03 90 DEGREES 102 300 DEGREES 04 120 DEGREES 112 330 DEGREES 05 150 DEGREES 06 180 DEGREES DRAWING NUMBER FOR T50 MODEL TYPE 60048 T50P PRE ENGAGED OUTBOARD NOSE 11 2 1 RATIO SAE 3 MOUNT 600517 T50Y PRE ENGAGED OVERHUNG PINION 11 2 1 RATIO SAE 3 MOUNT 60052 T50Y PRE ENGAGED OVERHUNG PINION 11 2 1 RATIO SAE 1 MOUNT EXHAUST OPTIONS 0 EXHAUST SCREEN PINION CODES 4 1 NOT AVAILABLE 01 6 8 DP 11T ON 12T BLANK 2 00 PD 20 PA ERE ea 02 8 10 DP 12T ON 13T BLANK 1 625 PD 20 PA 3 NOT AVAILABLE 03 8 10P 10T ON 11T BLANK 1 375 PD 20 PA 4 EXHAUST CLOSURE PLATE ECP 04 3 MOD 9T ON 9 567T BLANK 1 063 PD 14 5 PA 05 3 MOD 11T ON 11 7 BLANK 1 299 PD 14 5 PA 06 3 5 MOD 11T ON 11 64T BLANK 1 516 PD 14 5 PA 07 3 5 MOD 13T ON 13 7T BLANK 1 791 PD 14 5 PA 08 8 10P 13T ON 14T BLANK 1 750 PD 20 PA 09 3 5 MOD 15T ON 15 66T BLANK 1 772 PD 14 5 PA ROTATION 10 USE CODE 403 THIS IS A LH VERSION Re RH CW 11 3 5 MOD 17T ON 17 67T BLANK 2 343 PD 14 5 PA L LH COW 1
14. al before attempting to provide service on the TDI Turbotwin T50 Y air starter 1 2 WARNINGS CAUTIONS amp NOTES Throughout this manual certain types of information will be highlighted for your attention WARNING used where injury to personnel or damage to equipment is possible Publication T5 708 Rev 1 Issued August 14 2009 TDI TURBOTWIN FROM TECH DEVELOPMENT CAUTION used where there is the possibility of damage to equipment NOTE use to point out special interest information 1 3 DESCRIPTION OF OPERATION The Turbotwin T50 Y air starter is powered by a two stage axial flow turbine coupled to a simple planetary gear reduction set The T50 Y air starter incorporates a pre engaged drive coupled to the starter gearbox drive train to provide a means of disengaging the pinion from the engine s ring gear The high horsepower of the turbine air motor combined with the planetary gear speed reducer results in a very efficient and compact unit The Turbotwin T50 Y air starters can be used over a wide range of drive pressures from 40 psig 2 7 BAR to 120 psig 8 BAR and are suitable for operation on compressed air The T50 Y weighs approximately 34 pounds 15 KG and is capable of delivering over 45 HP 33 6 kW of cranking power at the maximum pressure of 120 psig 8 BAR 1 4 INSTALLATION AND SERVICE It is important to properly install and operate the TDI T50 Y air starter to receive the full benefits of
15. an be used to secure pinion however be careful not to damage pinion Page 12 TDI TURBOTWIN FROM TECH DEVELOPMENT Publication T5 708 Rev 1 Issued August 14 2009 TDI TURBOTWIN FROM TECH DEVELOPMENT SECTION 6 0 PARTS LIST The components illustrated and or described in this section are for the Turbotwin T50 Y air starter When rebuilding a T50 Y air starter it is recommended to purchase and completely install the appropriate service kit NG GB e LT T50 Y ILLUSTRATED PARTS LIST uni mE Overhaul Kit 1 Bee V ar 2602004 8 ONO 2 ExhaustGuad 228380 J 1 3 Exhaust Support 27475 ail 4 Screw Rotor Attachment f 9F 25028 012 1 v 5 RotrWasher 998047 1 6 Btage2Roo p 2723 i 7 Square Key 1 8 9 90220 050 2 8 Turbine Bearing 1 9122274 2 Y 9 JearingPre Load Spring 9 904333 2 1 grew p1F 3124 820 4 12 nletFlagg 1 1 2 289 13 This O Ring is no longer reguired 9 90001 031 1 14 Containment Nozzle 2 RH 28359 00R 1 14 Containment Nozzle 2 LH 2 28359 00L 1 15 Hollow Hex Plug 93501 002 1 16 Stage 1 Rotor 2 27225 lt a Tt 18 O Rig X 90001047 1 19 Turbine Hsg Stage 1 10 Noz RH 2 28354 10R 1 19 Turbine Hsg Stage 1 10 Noz LH 2 28354 10L 1
16. ing 37 Tool Turbine Bearing 45 25294 Tool Bearing Seal 2 26943 Tool Seal Positioning 45 25316 Table 1 T50 Series Service Tools P N T50 28570 3 3 3 Carrier Shaft Planet Gear Disassembly Remove snap ring 26 from planet shaft 27 and push 3 2 DRIVE HOUSING shaft through holes in assembly 25 Refer to figure 6 3 2 1 Removal of Drive Housing Mark position of drive pinion opening relative to gearbox housing for reference during re assembly Secure pinion 54 in a soft tooth vise while supporting aft end of the T50 Y air starter and rotate pinion screw 56 counterclockwise to remove Remove the twelve screws 52 and pull pinion housing 51 from gearbox housing 34 If pinion housing is too tight tap it with a mallet to loosen Pry lip seal 50 from front side of pinion housing 51 CARRIER SHAFT ASSEMBLY 25 PLANET GEAR 29 PLANET GEAR SPACER 28 Remove retainer ring 48 and press needle bearing 49 from pinion housing 51 using press tool i BEARING 30 PLANET SHAFT 27 RETAINING RING 26 3 2 2 Removal of Drive Remove return spring 47 and pinion collar 53 from Figure 6 Carrier Shaft Disassembly carrier shaft assembly 25 Publication T5 708 Rev 1 Issued August 14 2009 Page 5 Slide the planet gear 29 from the carrier shaft and remove the two spacers 28 Press the needle bearing 30 from the planet gear 29 3 4 TURBINE HOUSING 3 4 1 Stage 2 Rotor
17. tainment Ring 14 Turbine Housing 19 Gearbox Housing 34 and Drive Housing 51 so these parts can be located in the same relative position when the starter is reassembled Do not disassemble the starter any further than necessary to replace a worn or damaged part Always have a complete set of seals and o rings on hand before starting to overall the Turbotwin T50 Y air starter Never use old seals or o rings The tools listed in Table 1 are suggested for use by technicians servicing the Turbotwin T50 Y air starter The best results can be expected when these tools are used however the use of other tools are acceptable TDI TURBOTWIN FROM TECH DEVELOPMENT Remowve split rings 45 from drive assembly 3 3 GEARBOX HOUSING 3 3 1 Removal of Gearbox Housing Remove the four screws 35 and separate the gearbox assembly from the turbine assembly If the gearbox is too tight tap it with a mallet to loosen 3 3 2 Gearbox Disassembly Remove snap ring 41 and two thrust washers 40 from carrier shaft 25 Press forward side of carrier shaft to remove it from the gearbox housing Remove four screws 32 and press the bearing housing pre engaged piston assembly 37 43 from the gearbox housing Hand press bearing housing 37 from pre engaged piston 43 TOOL DESCRIPTION TDI PN Spanner Wrench 2 27272 otage 2 Rotor Puller Tool 52 20076 Elevate bearing housing and press gearbox bearing 31 to remove from hous
18. tapered end of tool into lip seal 39 Install gearbox housing onto carrier shaft and remove lip seal tool when gearbox is firmly seated on carrier shaft assembly Place two thrust washers 40 on carrier shaft and secure with snap ring 41 5 3 3 DRIVE INSTALLATION Apply a small amount of Aeroshell 6 grease to split rings 45 and install split rings onto drive assembly 46 Install the drive assembly 46 onto carrier shaft and place return spring 47 over drive assembly Press needle bearing 49 into aft end of pinion housing 51 and secure with retainer ring 48 Press lip seal 50 into forward side of pinion housing 51 5 4 FINAL ASSEMBLY Temporarily install one screw 35 into ring gear 24 to prevent it from rotating while applying grease Page 11 Apply liberal amounts of grease 100 grams to planet gears 29 turbine shaft sun gear 22 and ring gear 24 Remove screw 35 installed in above step Align gearbox assembly with turbine assembly and fasten together with four screws 35 Torque to 113 in Ibs Install pinion housing 51 onto gearbox housing 34 and secure with twelve screws 52 Torque to 150 in ft Install pinion collar 53 onto drive shaft 46 Install pinion 54 onto drive shaft and secure with washer 55 and screw 56 Torque screw to 60 ft Ib Apply Loctite 242 to screw before installing Note Pinion must be held in place to tighten screw 56 A soft tooth vise c
19. thrust washer 28 on each side of planet gear 29 and install into carrier shaft 25 slot Install planet shaft 27 into forward side of carrier and secure with snap ring 26 Be sure the anti rotation pin is inserted into the slot on the carrier shaft 5 3 2 CARRIER SHAFT INSTALLATION Install o ring 36 into forward side of gearbox housing 34 If removed press gearbox bearing 31 into aft side of bearing housing 37 Press the lip seal 39 into the forward side of the bearing housing 37 until seated using press tool P N 2 26943 Install o ring 38 into the groove on the bearing housing 37 Publication T5 708 Rev 1 Issued August 14 2009 TDI TURBOTWIN FROM TECH DEVELOPMENT NOTE Apply a small amount of Aeroshell grease to the outer surface of the bearing hub and the inside wall of the gearbox Install the bearing housing assembly 36 37 38 in the forward side of the gearbox housing 34 and secure with four screws 32 Torque to 81 in lb Install two o rings 42 44 into the grooves on the pre engaged piston 43 NOTE Apply a small amount of Aeroshell grease to the outer and inner surface of the pre engaged piston Hand press pre engaged piston into the forward side of the gearbox housing and remove any excess grease from gearbox housing Install o ring 23 onto aft end of gearbox housing 34 Install lip seal tool PN 45 25316 into forward side of gearbox housing 34 placing
20. turbine housing 5 2 4 ROTOR 2 INSTALLATION Turn the turbine nozzle over exhaust end up and install the labyrinth 10 onto the shaft Install pre load springs 9 into bearing bore of nozzle 2 containment housing 14 Apply a light coating of oil to the bearing bore in the Nozzle Containment Assembly and press the turbine bearing 8 over the turbine shaft and into the bearing bore using press tool P N 2 26943 Publication T5 708 Rev 1 Issued August 14 2009 Insert key 7 into turbine shaft keyway and install stage 2 rotor 6 onto shaft while simultaneously aligning the key with the keyway in the rotor Check for proper orientation as this rotor can be installed backwards Secure stage 2 rotor with rotor washer 5 and rotor screw 4 Torque to 170 in lb Install exhaust support 3 and exhaust guard 2 and secure with eight screws Torque to 150 in Ib Turn turbine housing over and install o ring 23 into the o ring groove on forward side of turbine housing 19 If removed install plug 15 into nozzle 2 containment housing Install the ring gear 24 onto turbine housing with the dowel pin hole facing up Install dowel pin 33 into dowel pin hole in ring rear 5 3 GEAR BOX ASSEMBLY 5 3 1 PLANETARY GEAR CARRIER ASSEMBLY Press needle bearings 30 into planet gears 29 using arbor press The bearing ID stamping must be against pressing tool The bearing should be centered between gear faces Place
21. ver two 085 diameter pins 11 2 1 2 2217 min Table 4 Parts Wear Limits ITEM NUMBER TORQUE Screw Refer to section 6 for part number identification Table 5 Torque Values Publication T5 708 Rev 1 Issued August 14 2009 TDI TURBOTWIN FROM TECH DEVELOPMENT MAXIMUM PERMISSIBLE WEAR ON EACH SIDE OF TOOTH DIMENSION B IS APPROXIMATELY TEN PERCENT OF DIMENSION A DIM A CENTER OF TOOTH NEW TOOTH WORN TOOTH TYPICAL TYPICAL Figure 10 Gear Teeth Wear Allowances Page 9 SECTION 5 0 ASSEMBLY 5 1 GENERAL INFORMATION The tools listed in Table 1 are suggested for use by technicians servicing the Turbotwin T50 Y air starter The best results can be expected when these tools are used however the use of other tools is acceptable CAUTION Replace all screws o rings lip seals and bearings These parts are included in the overhaul kit shown in the Parts List Section 6 0 NOTE Always press the inner race of a ball bearing when instaling a bearing onto a shaft Always press the outer race of a ball bearing when installing into a housing DO NOT LOAD BEARING BALLS Lubricate all o rings with petroleum jelly or Parker O ring Lube before assembly Refer to Table 5 for a list of materials to be used during assembly TDI TURBOTWIN FROM TECH DEVELOPMENT PRESSING TOOL 2 26943 _
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