Removal Procedure
Start By:
- Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect" for the machine that is being serviced.
- Release the pressure in the hydraulic system. Refer to Disassembly and Assembly, "System Pressure - Release" for the machine that is being serviced.
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. |
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 hoses and on all tubes for installation purposes. Plug all hoses and all tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
- Open the right side access door.
- Disconnect hoses (1) and (4) from piston pump (2) .
Illustration 1 | g00750612 |
Typical Example |
- Disconnect hose (3) from the pressure and flow compensator valve.
- Disconnect hoses (5) and (6) from piston pump (2) .
Illustration 2 | g00750620 |
Typical Example |
- Remove bolts (7) and (8), and remove the washers. The weight of the piston pump is 10 kg (22 lb).
Illustration 3 | g00754065 |
- Remove piston pump (2) and bracket (9) .
- Remove bolt (7) and the washer. Remove bracket (9) .
Illustration 4 | g00754075 |