| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| ZZ | 5H-4019 | Cover | 2 |
| 6V-9508 | Face Seal Plug | 2 | |
| 6V-9509 | Face Seal Plug | 1 | |
| 9U-7091 | Tapered Cap and Plug | 2 | |
| 9U-7088 | Tapered Cap and Plug | 2 | |
| 6V-9829 | Cap As | 2 | |
| 6V-9830 | Cap As | 1 | |
Start By:
- Remove the brake pump. Refer to Disassembly and Assembly, "Vane Pump (Braking) - Remove".
- Remove the cab. Refer to Disassembly and Assembly, "Cab - Remove".
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.
| 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, PERJ1017, "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. |
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Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand. |
Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses, and tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
Note: SERVICE DATA: TOOLING (ZZ) WILL NOT BE IDENTIFIED IN PHOTOGRAPHS IN THE REMOVAL OR THE INSTALLATION. THIS TOOLING IS SHOWN IN ORDER TO ASSIST THE EXPERIENCED SERVICEMAN.
- Drain any hydraulic oil into a suitable container for storage or disposal.
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Illustration 1 g00983964 - Disconnect hose assemblies (1), (2), and (3).
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Illustration 2 g00983965 - Disconnect hose assemblies (4) and (7). Remove bolts (5). Disconnect tube assembly (6).
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Illustration 3 g00983975 - Attach a suitable lifting device to the piston and vane pump (8). Remove bolts (9). Remove the piston and vane pump (8). The weight of the piston and vane pump (8) is approximately
57 kg (125 lb) .
