Removal Procedure
| Required Tools | |||
|---|---|---|---|
| Tool | Part Number | Part Description | Qty |
| ZZ | 6V-9508 | Face Seal Plug | 3 |
| 6V-9829 | Cap As | 3 | |
| 6V-9509 | Face Seal Plug | 1 | |
| 6V-9830 | Cap As | 1 | |
Start By:
- Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release".
- Tilt the cab. Refer to Disassembly and Assembly, "Cab - Tilt".
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.
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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. |
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| 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, "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. |
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: Put identification marks on all hoses, on all hose assemblies, on all wires, and on all tube assemblies for installation purposes. Plug all hose assemblies and all tube assemblies. This helps to prevent fluid loss, and this helps to keep contaminants from entering the system.
- Disconnect harness assembly (1). Disconnect hose assemblies (3). Remove bolts (4). Remove valve assembly (2) .
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| Illustration 1 | g01020623 |
Note: The supply tube assembly for the gear pump has been removed for illustration purposes.
- Remove locknut (5). Remove solenoid (6). Remove nut (7). Remove fittings (8) .
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| Illustration 2 | g01020625 |
Note: Observe the orientation of fittings (8) for assembly purposes.
Installation Procedure
- Install fittings (8). Install nut (7). Install solenoid (6). Install locknut (5). Tighten locknut (5) to a torque of 14 ± 2 N·m (10 ± 2 lb ft).
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| Illustration 3 | g01020625 |
- Position valve assembly (2) and install bolts (4). Connect hose assemblies (3). Connect harness assembly (1) .
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| Illustration 4 | g01020623 |
Note: The supply tube assembly for the gear pump has been removed for illustration purposes.
- Check the hydraulic oil level. Refer to Operation and Maintenance Manual, "Hydraulic Oil Level - Check".
End By: Lower the cab. Refer to Disassembly and Assembly, "Cab - Tilt".