| Required Tools | |||
| Tools | Part Number | Part Description | Qty |
| A | 1P-1862 | Retaining Ring Pliers | 1 |
| B | 1P-1861 | Retaining Ring Pliers | 1 |
| C | 1P-0510 | Driver Gp | 1 |
Start By:
- Remove the motor. Refer to Disassembly and Assembly, "Piston Motor (Propel) - Remove".
Note: Cleanliness is an important factor. Before you begin the disassembly procedure, the exterior of the components should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism. Precision components can be damaged by contaminants or by dirt. Perform disassembly procedures on a clean work surface. Keep components covered and protected at all times.
Note: Check the O-ring seals, the gaskets, and the seals for wear or for damage. Replace the components, if necessary.
| NOTICE |
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
| NOTICE |
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Keep all parts clean from contaminants. Contamination of the hydraulic system with foreign material will reduce the service life of the hydraulic system components. To prevent contaminants from entering the hydraulic system, always plug or cap the lines, fittings, or hoses as they are disconnected. Cover any disassembled components and clean them properly before assembly. Clean the hydraulic system properly after any major component exchange or especially after a component failure, to remove any contamination. |
- Remove fittings (2) from body (1).
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Illustration 2 g00992700 Show/hide table
Personal injury can result from parts and/or covers under spring pressure.
Spring force will be released when covers are removed.
Be prepared to hold spring loaded covers as the bolts are loosened.
- Remove bolts (3) from valve assembly (4).
- Remove valve assembly (4).
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Illustration 3 g00897532 - Remove O-ring seals (5) from valve assembly (4).
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Illustration 4 g00992703 Show/hide table
Illustration 5 g00897535 Show/hide tablePersonal injury can result from being struck by parts propelled by a released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to release the spring force.
- Remove the following components from head (13): spool (12), spool (11), seat (10), spring (9), spring (7), seat (8) and seat (6).
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Illustration 6 g00992704 - Remove bolts (14) from head (13).
- Remove head (13) from body (1).
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Illustration 7 g00898080 - Remove gasket (15) from head (13).
- Remove two set screws (16) from actuator (17).
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Illustration 8 g00898089 - Remove pin (18) from actuator (17) and head (13).
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Illustration 9 g00898098 - Remove actuator (17) from head (13).
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Illustration 10 g00898141 - Remove bolts (19) from plate (20). Remove plate (20) from head (13).
- Remove bolts (21) from adjustment plate (22). Remove adjustment plate (22) from head (13).
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Illustration 11 g00992705 Note: Mark plate (24) for proper orientation.
- Remove plate (24) from cylinder barrel (23).
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Illustration 12 g00898199 - Remove sliding plate (25) from cylinder barrel (23).
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Illustration 13 g00898220 - Remove dowel pins (26) from cylinder barrel (23).
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Illustration 14 g00898232 - Remove cylinder barrel (23) from body (1).
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Illustration 15 g00898276 - Remove dowel pin (27) from cylinder barrel (23).
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Illustration 16 g00898281 - Remove joint shaft assembly (28) from body (1).
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Illustration 17 g00898282 - Remove bearings (29) from joint shaft assembly (28).
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Illustration 18 g00999781 - Remove pistons (30) from body (1).
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Illustration 19 g00898285 - Remove piston rings (31) from pistons (30).
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Personal injury can result from parts and/or covers under spring pressure.
Spring force will be released when covers are removed.
Be prepared to hold spring loaded covers as the bolts are loosened.
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Illustration 20 g00898286 - Remove dowel pin (32), bushing (33), and spring (34) from body (1).
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Illustration 21 g00898387 - Remove retaining ring (35) from mounting plate (36).
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Illustration 22 g00898388 - Remove seal retainer (37) from mounting plate (36).
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Illustration 23 g00912688 - Remove O-ring seal (38) from mounting plate (36).
- Remove retaining ring (38A).
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Illustration 24 g00898391 - Remove seal (39) from seal retainer (37).
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Illustration 25 g00898392 Show/hide table
Illustration 26 g00898393 - Remove washer (40) from mounting plate (36).
- Remove shims (41) from mounting plate (36).
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Illustration 27 g00898395 - Remove bolts (42) from mounting plate (36).
- Remove mounting plate (36) from body (1).
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Illustration 28 g00898396 - Remove bearing (43) from mounting plate (36).
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Illustration 29 g00898400 - Remove bearing cup (44) from body (1).
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Illustration 30 g00898401 - Remove shaft assembly (45) from body (1).
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Illustration 31 g00898402 - Remove race (46) from shaft assembly (45).
- Remove bearing cone (47) from shaft assembly (45).
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| Illustration 1 | g00992699 |
