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Service Manual

HTG Series Integrated Hydrostatic Transmission

Parker Hannifin Corporation

Hydraulic Pump/Motor Division

Greeneville, Tennessee USA

HY13-1524-002-M1/US

General Information

55A

55B

10X

47A

47D

47B

47C

22B

22A

22B 24 25

22A 23

SEE PARTS LIST FOR

ORFICE PLUG OPTIONS

THRU COVER & GASKET

TO TOP HOUSING

TORQUE TO 100-120 in-lbs

TO END BLOCK

TORQUE TO

90-110 in-lbs

TO TOP HOUSING

TORQUE TO

270-300 in-lbs

TO MOTOR

TORQUE TO

45-55 ft-lbs

TORQUE TO

21-24 ft-lbs

TORQUE TO

21-24 ft-lbs

4X 14

29 30 31

48 39 40 33

18A

36A

THRU TOP HOUSING

THRU FILTER

TUBE BRACKET

THRU

WASHER

TO END

BLOCK

TO FILTER

18B

36B

Right-hand Unit Exploded View & Parts List

(page 4 of 4)

Pump Assembly Detail

ITEM

QTY

PART NUMBER

DESCRIPTION

021393

SPECIAL BOLT, 3/8-24 UNF-2A X 6.625

023002

THREAD FORMING SCREW, 1/4-20 X .625

100000031-105

HEX HEAD SCREW, 1/4-28 UNRF-2A X 2.25

028996

WASHER, FLAT, Ø.406 ID X Ø.827 OD X .098

032202-013

PREFORMED O-RING SEAL

032202-116

PREFORMED O-RING SEAL

18A

034008

GASKET, BOTTOM COVER, FE

18B

034007

GASKET, BOTTOM COVER, COMPOSITE

22A

036038

PLUG & O-RING ASSEMBLY, M18 X 1.5-6g

22B

409035

PLUG & O-RING ASSEMBLY, M18 X 1.5-6g

410113

RELIEF VALVE SUB-ASSEMBLY

401143

SPRING

409041

POPPET VALVE

063048

THRUST BEARING

069010

THRUST WASHER

069011

THRUST WASHER

401145

EXTERNAL RETAINING RING

401302

SPRING (CENTRAL)

36A

402136

BOTTOM COVER ASSEMBLY

36B

402139

BOTTOM COVER ASSEMBLY

38A

409353

ORIFICE PLUG (Ø .018)

38B

409354

ORIFICE PLUG (Ø .024)

38C

409355

ORIFICE PLUG (Ø .031)

38D

409356

ORIFICE PLUG (Ø .044)

38E

409357

ORIFICE PLUG (NO ORIFICE)

410123

BYPASS VALVE ASSEMBLY

410124

CHARGE RELIEF VALVE ASSEMBLY

411137

FILTER TUBE (RH)

452011

CONTROL BLOCK

452020

TRUNNION BLOCK

47A

452005

TRUNNION ARM

47B

452016

TRUNNION ARM

47C

452019

TRUNNION ARM

47D

452027

TRUNNION ARM

452018

BYPASS LEVER

477369

PORT PLATE

H1A014000

ROTOR SET ASSEMBLY

HD016000R-A1

END BLOCK ASSEMBLY (RH)

HD018000

CHARGE PUMP COVER

HD019000-A1

SHAFT ASSEMBLY

HP2013000-A1

SWASH BLOCK ASSEMBLY

Содержание HTG Series

Страница 1: ...rated Hydrostatic Transmission Effective August 2021 This product can expose you to chemicals including lead and DEHP which are known to the State of California to cause cancer and birth defects or ot...

Страница 2: ...that you analyze all aspects of your application and review the information concerning the product or system in the current product catalog Due to the variety of operating conditions and applications...

Страница 3: ...es that a the Service Manual or any explanations illustrations information techniques or tools described herein are either accurate complete or cor rect as applied to a specific Transmission unit or b...

Страница 4: ...ntact your local dealer or OEM manufacturer s technical service department Don t try to second guess the Service Manual if problems occur that you cannot solve please con tact your local dealer or OEM...

Страница 5: ...ce you have determined that a problem exists start with the easy to check items such as parts damaged from impact that were not properly repaired or that should have been replaced improper replacement...

Страница 6: ...spect for cap damage If loose torque to proper torque specifica tion if seal damage replace filter assem bly if cap cracked replace filter assembly X Static seals leaking Side bottom cover Remove cove...

Страница 7: ...maintenance equipment Transmissions over heat Check fan for broken blades check for debris wrapped around pulley shaft X NOTE Refer to owners manual for proper transmission fluid and fill volume Engi...

Страница 8: ...M Refer to OEM owners manual verify RPM adjust as necessary X Brake Drag Refer to OEM owners manual for proper specified brake adjustment X Loose lug nuts Refer to OEM owners manual for proper torque...

Страница 9: ...TG transmissions come factory filled with Parker HT 1000 oil Oil change intervals depend on the type of oil used Follow OEM manufacturers recommended oil change interval Always change the filter when...

Страница 10: ...ng the hydraulic system Clean the area around the filler caps before checking oil level Investigate and correct any external leak in the hydraulic system no matter how minor the leak Comply with Parke...

Страница 11: ...l Filter 9 6 11 3 115 135 Fan Nut 55 70 Control Arm Bolt 12 5 15 150 180 Brake Assembly 25 28 Castle Nut Patch Lock Nut 200 300 plus rotation to align Cotter Pin Self locking nut for brake drum 200 30...

Страница 12: ...sion 12 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee USA HY13 1524 002 M1 US General Information LH Mower Frame RH Tire Engine Lorem ipsum Tire Transmissions Driver...

Страница 13: ...static Transmission 13 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee USA HY13 1524 002 M1 US General Information UNL REMO A S D INFORMA AND PROP DIVISIO THIRD ANGLE P...

Страница 14: ...ROTATING BRACKET 44B 1 420072 ROTATING BRACKET LH 44C 1 420077 RTN ASSEMBLY LH 44D 1 420122 RTN ASSEMBLY LH 44E 1 452028 ROTATING BRACKET 45 1 452011 CONTROL BLOCK 46 1 452020 TRUNNION BLOCK 47A 1 45...

Страница 15: ...NUMBER DESCRIPTION 1 4 020207 FLANGE HEAD CAP SCREW 5 16 18 UNC 3A X 0 75 10A 1 025113 NUT 1 20 UNEF 2B 10B 1 025126 NUT 1 20 UNEF 2B 11 1 025164 NUT 5 8 18 UNF 2B 27 1 038016 WOODRUFF KEY 5 16 x 1 2...

Страница 16: ...13 1 028025 WASHER FLAT 8 74mm ID X 17 50mm OD X 1 664mm 14 4 028996 WASHER FLAT 406 ID X 827 OD X 098 15 1 100000068 LABEL 19 1 034009 GASKET SIDE COVER FE 20A 1 035007 FITTING BEADED HOSE BARB SAE...

Страница 17: ...NG SEAL 18A 1 034008 GASKET BOTTOM COVER FE 18B 1 034007 GASKET BOTTOM COVER COMPOSITE 22A 2 036038 PLUG O RING ASSEMBLY M18 X 1 5 6g 22B 2 409035 PLUG O RING ASSEMBLY M18 X 1 5 6g 23 2 410113 RELIEF...

Страница 18: ...16 1 032202 013 PREFORMED O RING SEAL 17 2 032202 116 PREFORMED O RING SEAL 18A 1 034008 GASKET BOTTOM COVER FE 18B 1 034007 GASKET BOTTOM COVER COMPOSITE 19 1 034009 GASKET SIDE COVER FE 20A 1 035007...

Страница 19: ...UMBER DESCRIPTION 1 4 020207 FLANGE HEAD CAP SCREW 5 16 18 UNC 3A X 75 10A 1 025113 NUT 1 20 UNEF 2B 10B 1 025126 NUT 1 20 UNEF 2B 11 1 025164 NUT 5 8 18 UNF 2B 27 1 038016 WOODRUFF KEY 5 16 X 1 28 1...

Страница 20: ...CKET HEAD CAP SCREW M8 X 1 25 X 25mm 8 15 023002 THREAD FORMING SCREW 1 4 20 X 625 12 1 028022 WASHER FLAT 259 ID X 500 OD X 062 13 1 028025 WASHER FLAT 8 74mm ID X 17 50mm OD X 1 664mm 14 4 028996 WA...

Страница 21: ...16 1 032202 013 PREFORMED O RING SEAL 17 2 032202 116 PREFORMED O RING SEAL 18A 1 034008 GASKET BOTTOM COVER FE 18B 1 034007 GASKET BOTTOM COVER COMPOSITE 22A 2 036038 PLUG O RING ASSEMBLY M18 X 1 5 6...

Страница 22: ...poration Hydraulic Pump Motor Division Greeneville Tennessee USA HY13 1524 002 M1 US General Information UNLESS OTHERWISE SPECIFIED INTERPRET PER ASME Y14 5M 1994 ANGULAR DIMENSIONS 2 SURFACE ROUGHNES...

Страница 23: ...034009 Gasket Side Cover 4 1 SK000277 Sheet 3 Service Bulletin SK000278 HTG SERVICE KIT MOTOR 310cc Right hand Side Item QTY Part Number Description 1 1 TG0310SD081HTAA SA Motor 2 2 032202 116 Packin...

Страница 24: ...TY Part Number Description 1 1 040204 Cotter Pin 2 1 490169 Brake Assembly 4 1 490216 Drum Assembly 3 4 020207 Flange Head Screw 4 1 025113 Castle Nut 5 1 SK000284 Sheet 3 Service Bulletin SK000285 HT...

Страница 25: ...QTY Part Number Description 1 1 025164 Fan Nut 2 1 477370 Fan Spacer 3 1 420142 Fan 7 8 4 1 SK000345 Sheet 3 Service Bulletin SK000448 HTG HYDRAULIC TRANSMISSION OIL FILTER KIT 2 GAL Item QTY Part Num...

Страница 26: ...exploded view illustrations for removal and replacement of the brake assembly and torque specifications Remove the HTG Transmission from the chassis drain it of fluid and take it to a clean work surf...

Страница 27: ...lean unit free of grass and other debris Let dry and place on a clean work table 2 Place a pan for oil collection under the unit 1 Remove the cotter pin using needle nose pliers 2 Straighten bent pins...

Страница 28: ...mbly and Inspection Step Instruction Illustration Remove brake assembly Remove vent plug 1 Loosen and remove the 4 bolts from the brake assembly using a ratchet and a 5 16 12 pt socket 2 Inspect bolts...

Страница 29: ...n Drain oil from unit Remove the fan nut 2 Gently pull out filter by hand 1 With a ratchet and a 15 16 socket loosen and remove the fan pulley nut 2 Use a strap wrench or similar tool to hold the pull...

Страница 30: ...de cover 2 Replace pulley if damaged or bent during removal 1 Loosen the five screws from the side plate using a ratchet and a 3 8 socket Remove pulley 1 Use an OEM pulley puller or equivalent standar...

Страница 31: ...tegrated Hydrostatic Transmission HY13 1528 001 M1 US HTG Series Service Manual Disassembly and Inspection Step Instruction Illustration Remove four bolts from inside pump 1 Loosen and remove four bol...

Страница 32: ...Service Manual Disassembly and Inspection Step Instruction Illustration Remove bottom cover 1 Using ratchet and a 3 8 socket loosen the 10 screws from the bottom cover 2 Remove screws and inspect for...

Страница 33: ...r set 1 Inspect inside of charge pump cover for any scoring 2 Replace if necessary 1 Remove both the charge pump rotor and stator 2 May need to use a flathead screwdriver to assist in prying 3 Inspect...

Страница 34: ...dblock 2 Remove each cap using a ratchet and a 5 16 hex head socket Remove spring and shock valve from each side Turn endblock to side and remove spring and shock valve Remove rotating group with pist...

Страница 35: ...ct port plate for any damage 2 If the brass side of the port plate has heavy scoring replace with a new port plate Remove central spring Remove swash block Remove top washer 0 25 thick Inspect top and...

Страница 36: ...vice Manual Disassembly and Inspection Step Instruction Illustration Remove control block The control block should slide off the trunnion shaft However you may need to use a flat head screwdriver to g...

Страница 37: ...Tap top of shaft with a rubber mallet to loosen Remove shaft and bearing Remove trunnion arm Once shaft is free from the housing assembly remove the shaft seal 2 Pull pump shaft out of top of pump ho...

Страница 38: ...Step Instruction Illustration Disassemble the Motor Remove two 2 end cover O rings Remove three end cover bolts Using a screwdriver or a pick slide the two O rings out from cover grooves Be careful n...

Страница 39: ...screwdriver to pry O ring out from the end cover NOTE May need to use a flat head screwdriver to pry section seal from the end cover Remove the commutator It may be necessary to use a flat head screw...

Страница 40: ...ustration Remove section seal from both sides of the manifold It may be necessary to use a flat head screwdriver to lift out the two section seals Be careful not to scratch or damage the motor parts R...

Страница 41: ...or set Remove section seal from bottom of rotor set 1 Rotate rotor set over 2 Remove the section seal from the bottom of the rotor set Remove the wear plate Remove the thrust bearing from the motor ho...

Страница 42: ...ation Remove drive link 1 While motor housing is in vise use hands to gently rotate the drive link out of the shaft Remove the Woodruff key Remove coupling shaft 1 Gently turn the motor housing over 2...

Страница 43: ...nspection Step Instruction Illustration Remove the shaft seal 3 Use a screwdriver to pry shaft seal loose from housing groove on the front side of the motor Be careful not to scratch or damage the sea...

Страница 44: ...Reassembly of HTG Motor Start with reassembly of the pump section Starting with the top housing clean all parts before reassembly Install trunnion arm seal Seat trunnion arm seal Install trunnion arm...

Страница 45: ...g Seat shaft bearing Install pump seal Press seal in place Push shaft and bearing assembly to the bottom of the top housing 3 With the shaft properly aligned to the top housing lightly tap the bearing...

Страница 46: ...hing pin hole to pin loca tion in top housing 2 Do not stake pins 3 Apply HT 1000 oil on top of each cradle bushing Install control block onto trunnion arm inside of top housing Install swash block 1...

Страница 47: ...lace central spring onto pump shaft 1 Turn assembly onto side while holding pistons in place 2 Slide the assembly rotating slightly over the charge pump shaft 3 Press lightly on rotating group assembl...

Страница 48: ...free of debris and Apply HT 1000 oil on the face of end block which will provide some suction and keep the port plate in place during reassembly 2 Place port plate onto endblock with the bronze side f...

Страница 49: ...all amount of HT 1000 oil to the face of the bottom face of the endblock Install charge pump Install charge pump cover Install two pump cover bolts and torque 2 Place and align the stator over the rot...

Страница 50: ...number one screw torque to 50 60 in lbs 3 Following the number order torque all remaining screws to 50 60 in lbs 1 Place the bottom cover over gasket 2 If installing a standard rubber gasket in sert s...

Страница 51: ...st the bearing package 2 The back up ring will lay flat into the groove of housing seal cavity 1 Place motor housing in a soft jawed vice with nose pointed down 2 Using grease provided in seal kit app...

Страница 52: ...000 oil to help shaft pass through the lip of shaft seal package 1 Slightly rotate shaft while pushing down so that it passes through the seal pack age and bottoms on top of the thrust washer 2 The to...

Страница 53: ...ve link 2 Align wear plate bolt holes to the motor housing bolt holes referencing the V pattern previously drawn on the wear plate Install section seal Install the assembled rotor set Alignment of rot...

Страница 54: ...should fit flush with top of rotor Install section seal ring into manifold Install manifold Install section seal Assemble seal and commutator 1 Place manifold over the drive link and onto the rotor s...

Страница 55: ...e up Install commutator ring Install section seal in end cover Install end cover O ring Install end cover on top of motor Place commutator ring on top of manifold and align the holes up with the bot h...

Страница 56: ...OTE Reference alignment marks on end cover face for correct location 2 Use hand pressure to seat O rings into grooves 2 Tighten with ratchet and a 9 16 socket 3 Torque to 45 55 ft lbs Install top hous...

Страница 57: ...on on the endblock where the filter tube hanger is located 2 Insert the other into the second tall loca tion in the endblock 3 Place the shorter endblock bolts into the short endblock hole locations 4...

Страница 58: ...over on top of gasket and align the screw holes Install side cover screws Place self tapping screws in all five locations and hand tighten Torque side cover screws Install pulley Install fan Place pul...

Страница 59: ...pulling while torquing nut 2 Torque nut to 55 70 ft lbs Fill with HT 1000 oil Replace vent plug Install Woodruff Key Install brake assembly 1 Hand start hollow hex plug 2 Tighten with a 5 16 hex wrenc...

Страница 60: ...assembly piloting the Woodruff Key into the matching slot Be careful not to scrape the shaft or dislodge the Woodruff Key while installing the brake drum 2 Torque brake assembly bolts to 25 28 ft lbs...

Страница 61: ...61 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee USA HY13 1524 002 M1 US Notes Service Manual HTG Series Integrated Hydrostatic Transmission...

Страница 62: ...e of delivery or when downloaded by a Buyer or end user from the date of the initial download All prices are based upon the exclusive limited warranty stated above and upon the following disclaimer EX...

Страница 63: ...its assets 19 Ownership of Software Seller retains ownership of all Software supplied to Buyer hereunder In no event shall Buyer obtain any greater right in and to the Software than a right in the na...

Страница 64: ...Parker Hannifin Corporation Hydraulic Pump Motor Division 2745 Snapps Ferry Road Greeneville TN 37745 USA Tel 423 639 8151 www parker com pmd...

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