| Required Tools | |||
|---|---|---|---|
| Tool | Part Number | Part Description | Qty |
| A | 1P-0510 | Driver Gp | 1 |
| B | 9S-9152 | Bearing Puller | 1 |
Start By:
- Remove the piston pump.
| NOTICE |
|---|
|
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, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products. Dispose of all fluids according to local regulations and mandates. |
- To protect the shaft seal, use an adhesive tape to cover the drive shaft.
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Illustration 2 g00669721 - Remove bolts (2) and pressure and flow compensator valve (1) from piston pump (3).
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Illustration 3 g00670188 - Remove O-ring seals (4) from compensator valve (1).
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Illustration 4 g00670190 - Remove plug (5) from compensator valve (1). Repeat for opposite side.
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Illustration 5 g00670191 - Remove O-ring seal (6) from plug (5).
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Illustration 6 g00670192 Show/hide table
Personal 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 plug (7) from compensator valve (1).
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Illustration 7 g02581076 - Remove O-ring seal (8) from plug (7). Remove plate (9), spring (10), spring (11), and guide (12) from compensator valve (1).
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Illustration 8 g00670197 - Remove plug (13) from compensator valve (1).
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Illustration 9 g00670198 - Remove spool (14) from compensator valve (1). Remove spacer (15) from plug (13).
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Illustration 10 g00670199 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 plug (16) from compensator valve (1).
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Illustration 11 g02581078 - Remove O-ring seal (17) from plug (16). Remove plate (18), spring (19), spring (20), and guide (21) from compensator valve (1).
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Illustration 12 g00670202 - Remove plug (22) from compensator valve (1).
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Illustration 13 g00670203 - Remove spool (23) from compensator valve (1). Remove spacer (24) from plug (22).
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Illustration 14 g02580532 - Remove bolts (25) from head assembly (26).
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Illustration 15 g00669723 - Remove head assembly (26) from pump body (27).
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Illustration 16 g00669727 - Remove O-ring seal (28) and port plate (29) from head assembly (26).
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Illustration 17 g00669728 - Remove bearing cup (30).
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Illustration 18 g00669729 - Remove O-ring seal (31).
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Illustration 19 g00669730 - Remove bearing cone (32) from the shaft assembly.
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Illustration 20 g00669731 - Remove adjustment shim (33).
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Illustration 21 g00669732 - Remove plug (34).
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Illustration 22 g00669738 - Remove O-ring seal (35) from plug (34).
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Illustration 23 g00669742 - Carefully place the pump in a horizontal position.
- Remove rotary group (36).
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Illustration 24 g00669741 - Remove piston assemblies (37) from barrel assembly (38).
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Illustration 25 g00669743 - Remove retaining ball (39) from barrel assembly (38).
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Illustration 26 g00669744 Show/hide table
Illustration 27 g00669745 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.
Note: There is spring force against retaining ring (43). When retaining ring (43) is removed, the spring force will be released. Removal of the internal components in barrel (38) should be performed in a press. This is done to retain spring (42) and retaining ring (43).
- Use a suitable press and Tooling (A) to compress the spring in barrel assembly (38).
- Remove retaining ring (43) from the barrel assembly (38).
- Remove retaining ring (43), spring (42), guide (41), and pins (40) from the barrel assembly.
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Illustration 28 g00670204 - Move the swashplate up and down to remove the control piston (44).
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Illustration 29 g00670205 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.
Note: To release piston rod (45) from the swashplate, lift the swashplate a little and move the piston rod sideways.
- Remove piston rod (45).
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Illustration 30 g00670206 - Remove swashplate (46).
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Illustration 31 g00670207 - Remove spring (47).
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Illustration 32 g00670223 - Remove bearings (48).
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Illustration 33 g00670298 - Remove shaft assembly (49).
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Illustration 34 g00670301 Show/hide table
Illustration 35 g00670302 - Remove retaining ring (50).
- Use Tooling (A) to remove seal (51).
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Illustration 36 g00670360 - Remove two plugs (52) from pump body (27). Inspect the O-ring seals on the plugs. Replace the O-ring seals, if necessary.
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Illustration 37 g00670361 - Remove bearing cup (53) from pump body (27).
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Illustration 38 g06132884 - Use Tooling (B) and a suitable press to remove bearing cone (54) from shaft assembly (49).
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| Illustration 1 | g00670363 |
