Removal Procedure
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| ZZ | 6V-9507 | Face Seal Plug | 2 |
| 6V-9828 | Cap As | 2 | |
| 6V-9511 | Plug | 2 | |
| 6V-9832 | Cap As | 2 | |
| 9U-7092 | Tapered Cap/Plug | 2 | |
Start By:
- Release the hydraulic system pressure. Refer to Disassembly and Assembly, "System Pressure - Release".
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 attachments have been lowered, 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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Cylinders equipped with lock valves can remain pressurized for very long periods of time, even with the hoses removed. Failure to relieve pressure before removing a lock valve or disassembling a cylinder can result in personal injury or death. Ensure all pressure is relieved before removing a lock valve or disassembling a cylinder. |
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| 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. |
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: 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.
- Open the engine hood. Refer to Operation and Maintenance Manual, "Hood Tilt".
- Drain the hydraulic oil. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change".
- Disconnect hose assembly (1), hose assembly (4), and hose assembly (3). Remove tube assembly (5). Remove bolts (6) from manifold (2).
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| Illustration 1 | g01016784 |
- Position manifold (2) out of the way.
- Attach a suitable lifting device, as shown. Disconnect tube assembly (7). Remove bolts (8) and remove pump (9). The weight of piston pump (9) is approximately 40 kg (90 lb).
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| Illustration 2 | g01139245 |