Piston Motor (Hydrostatic) - Assemble
Assembly Procedure
Show/hide table
REQUIRED TOOLS     | |||
Tool     | Part Number     | Part Description     | Quantity     |
A     | 1P-1863     | Snap Ring Pliers     | 1     |
B     | 8B-7548     | Push Puller Tool     | 1     |
B     | 8B-7550     | Leg     | 2     |
B     | 1B-4207     | Nut     | 2     |
B     | 3H-0465     | Plate     | 5     |
B     |     | 16 mm Rod     | 1     |
B     | 8T-4132     | 16 mm Nuts     | 3     |
B     | 4B-4281     | Washer     | 1     |
C     | 1P-8161     | Snap Ring Pliers     | 1     |
D     | 1P-1853     | Snap Ring Pliers     | 1     |
Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.
- Install a new seal (77) on the motor housing.
Show/hide table
Illustration 1 | g00481364 |
- Install pistons (75), pin (74), and plate (73) into the drive shaft.
Show/hide table
Illustration 2 | g00481362 |
- Apply 9S-3263 Thread Lock Compound to fourteen screws (72). Frequently check plate (73) for proper alignment. Also check pistons (75) for free movement.
- Lower the temperature of the drive shaft and heat two bearings (69) and (71). Use Tooling (E) to install the two bearings and shim (70) onto the drive shaft.
Show/hide table
Illustration 3 | g00481360 |
- Use Tooling (A) to install plate (68) and snap ring (67) .
Show/hide table
Illustration 4 | g00481340 |
- Install spacer (65) and spring (66) into the barrel assembly. Install barrel assembly (63) to drive shaft assembly (64) .
Show/hide table
Illustration 5 | g00481255 |
Show/hide table
Illustration 6 | g00481124 |
- Lower the temperature of the drive shaft assembly for ease of installation into the motor housing. Use Tooling (B) to install the drive shaft assembly into the motor housing.
Show/hide table
Illustration 7 | g00482282 |
- Install a new seal (62). Use Tooling (C) to install snap ring (61) to the motor housing.
Show/hide table
Illustration 8 | g00481098 |
- Install pin (59) and piston (60) to the pilot valve.
Show/hide table
Illustration 9 | g00481097 |
- Install block (58) and bolt (57) into the pilot valve.
Show/hide table
Illustration 10 | g00481096 |
- Install plate (56) to the pilot valve.
Show/hide table
Illustration 11 | g00481095 |
- Install adjustment screw (54) and (55), pins (52), and O-ring (53) to the motor housing.
- Install motor head (30) and eight bolts (51) to the motor housing. Tighten to a torque of 210 ± 15 N·m (155 ± 11 lb ft).
Show/hide table
Illustration 12 | g00481094 |
- Install piston (47), plug (48), O-ring (49), and test port (50 ) into pilot valve (29) .
Show/hide table
Illustration 13 | g00481090 |
- Install spool (42), spacer (41), spring (40), O-ring (39), plug (38), spacer (43), spring (44), O-ring (46), and plug (45) into the pilot valve.
Show/hide table
Illustration 14 | g00481088 |
- Install piston (37), spring (36), washer (35), O-ring (34), and plug (33) into pilot valve (29) .
Show/hide table
Illustration 15 | g00481087 |
- Install four small O-rings (32) and a big O-ring (31) to pilot valve (29) .
Show/hide table
Illustration 16 | g00481085 |
- Install pilot valve (29) and four bolts (28) to motor head (30) .
Show/hide table
Illustration 17 | g00481080 |
- Install spools (27) and (26) into the solenoid assembly. Use Tooling (A) to install snap ring (25) .
Show/hide table
Illustration 18 | g00481049 |
- Install locknut (24), screw (24), O-ring (23), and pin (22) to the solenoid assembly.
Show/hide table
Illustration 19 | g00481046 |
- Install O-ring (19), spring (20), and spool (21) into solenoid assembly (2) .
Show/hide table
Illustration 20 | g00481045 |
- Install O-ring (18), spring (17), and spool (16) into the solenoid assembly (2) .
- Install piston (15), O-ring (14), backup ring (13), O-ring (12), and cap (11) into solenoid (10) .
Show/hide table
Illustration 21 | g00481043 |
- Install solenoid (10) and four bolts (9) to solenoid assembly (2) .
Show/hide table
Illustration 22 | g00480981 |
- Repeat steps number 23 and 24 to the other solenoid.
- Install four O-ring (8), spring (7), cap (6), spring (5), and piston (4) into the motor head.
Show/hide table
Illustration 23 | g00480900 |
- Install solenoid assembly (2) and four bolts (1) to the motor head.
Show/hide table
Illustration 24 | g00480863 |
Caterpillar Information System:
D250E Series II and D300E Series II Articulated Trucks 3306B Engine Supplement Engine Rear Mount - Remove
784C and 785C Off-Highway Trucks Machine Systems Metering Pump (Steering) - Remove
583R Pipelayer Engine Supplement Engine and Torque Divider - Remove
Challenger 35, Challenger 45 and Challenger 55 Agricultural Tractors Implement, Steering and Brake Hydraulic Systems Pump Efficiency Check
IT14G Integrated Toolcarrier and 914G Wheel Loader Power Train Piston Motor (Hydrostatic) - Disassemble
IT14G Integrated Toolcarrier and 914G Wheel Loader Power Train Piston Motor (Hydrostatic) - Remove
583R Pipelayer Engine Supplement Radiator Guard and Radiator - Remove and Install
3304B and 3306B Engines for Caterpillar Built Machines Engine Oil Pan - Remove and Install
3406E On-Highway Engine Engine Oil Cooler - Disassemble
784C and 785C Off-Highway Trucks Machine Systems Piston Pump (Steering) - Install
69D and 769D Off-Highway Trucks and 771D Quarry Truck Machine Systems Control Valve (Hoist) - Assemble
HH45 Harvester Head, HH55 Harvester Head, HH65 Harvester Head and HH75 Harvester Head Stump Treatment System - If Equipped
IT14G Integrated Toolcarrier and 914G Wheel Loader Power Train Piston Motor (Hydrostatic) - Install
69D and 769D Off-Highway Truck and 771D Quarry Truck Air System and Brakes Inverter Valve (Secondary Brake)
IT14G Integrated Toolcarrier and 914G Wheel Loader Power Train Parking Brake - Assemble
D7R Track-Type Tractor Power Train Sprocket Segment - Remove and Install
583R Pipelayer Power Train Track Roller - Disassemble
CB-434C, CB-534C and CB-634C Vibratory Compactors Water Spray System Water Tank (Front)
583R Pipelayer Engine Supplement Engine and Torque Divider - Install
797 Off-Highway Truck Power Train Transmission Planetary - Assemble
69D and 769D Off-Highway Truck and 771D Quarry Truck Air System and Brakes Air Control Valve (Retarder)
784C and 785C Off-Highway Trucks Machine Systems Metering Pump (Steering) - Install
784C and 785C Off-Highway Truck/Tractors Air System and Brakes Control Valve (Hoist)
583R Pipelayer Power Train Track Roller - Assemble