| Required Tools | |||
|---|---|---|---|
| Tool | Part Number | Part Description | Qty |
| A | 1U-7563 | Hex Wrench | 1 |
| B | 1U-7600 | Slide Hammer Puller Gp | 1 |
| C | 6V-3821 | Bolt | 1 |
| D | 8H-0663 | Bearing Puller | 1 |
| E | 136-1452 | Retaining Ring Pliers | 1 |
Start By:
- Remove the travel motor. Refer to Disassembly and Assembly, "Travel Motor - Remove".
| 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. |
Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.
- Remove drain plug (1). Drain the oil from the travel motor into a suitable container for storage or disposal.
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Illustration 2 g00841816 - Remove bolts (2). Remove head (3).
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Illustration 3 g00841824 - Remove port plate (4) and pin (5).
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Illustration 4 g00841826 - Remove relief valves (6).
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Illustration 5 g00841840 - Remove O-ring seals (7) from both relief valves.
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Illustration 6 g00841845 - Remove plug (8) and piston (9).
Note: Mark the orientation of piston (9) for assembly purposes.
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Illustration 7 g00841848 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 cap (10).
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Illustration 8 g00841850 - Remove spring (11), spacer (12), and spool (13).
- Remove the cap, the spring, and the spacer from the other side of the head.
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Illustration 9 g00841855 Show/hide tablePersonal 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 valve assembly (14).
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Illustration 10 g00841858 - Remove cap (15), spring (16), and seat (17).
- Remove the cap, the spring, and the seat from the other side of the head.
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Illustration 11 g00841860 - Remove valve assembly (18).
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Illustration 12 g00841869 - Remove valve assembly (19), spring (20), and poppet (21).
- Remove the valve assembly, the spring, and the poppet from the other side of the head.
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Illustration 13 g00841875 Show/hide tablePersonal 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 valve (22).
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Illustration 14 g00841878 - Remove cap (26), seat (25), spring (24), and spool (23).
- Remove the cap, the seat, the spring, and the spool from the other side of the head.
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Illustration 15 g00841883 - Remove plug (27).
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Illustration 16 g00841884 - Use Tooling (A) in order to remove shuttle valve (28).
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Illustration 17 g00841894 - Install Tooling (C). Remove seal (29).
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Illustration 18 g00841897 - Remove plastic caps (30).
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Illustration 19 g00841898 Note: Record the distance from the locknut to the end of the set screw for installation purposes.
- Remove locknuts (31) and screws (32).
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Illustration 20 g00841889 - Use Tooling (E) to remove retaining ring (34).
- Remove shim (33).
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Illustration 21 g00841908 - Use Tooling (B) in order to remove seal (35).
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Illustration 22 g00841930 - Use a suitable press in order to remove rotator assembly (36).
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Illustration 23 g00841931 Show/hide tablePersonal 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 Tooling (C) from barrel (37).
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Illustration 24 g00841932 - Remove screws (38) from retainer (39). Remove pistons (40) and center pin (41).
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Illustration 25 g00841934 - Remove spring (42) and shim (43).
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Illustration 26 g01288668 - Remove retaining ring (44) and shim (45).
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Illustration 27 g01288673 - Place the rotor assembly in a suitable press. Use Tooling (D) in order to press shaft (46) from bearing (47), shim (48), and bearing (49).
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| Illustration 1 | g00841777 |
