854G Wheel Dozer Machine Systems Caterpillar


Gear Pump (Implement Pilot) - Remove

Usage:

854G 1JW

Removal Procedure

Start By:

  1. Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".

  2. Release the pressure in the implement hydraulic system. Refer to Disassembly and Assembly, "System Pressure - Release".


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, 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.


------ WARNING! ------

Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.


Note: Put identification marks on all lines and on all hoses for installation purposes. Plug all lines and all hoses. This will help to prevent fluid loss and this will help to keep contaminants from entering the system.

  1. Drain the oil from the implement hydraulic tank into a suitable container. The tank capacity is 326 L (85 US gal).


    Illustration 1g00400100

  2. Open platform door (1) behind the cab in order to access pilot pump (2).


    Illustration 2g00400102

  3. Disconnect two hose assemblies (3).


    Illustration 3g00400104

  4. Remove bolts (4) and pilot pump (2).


    Illustration 4g00400107

  5. Remove O-ring seal (5) from the pilot pump.


    Illustration 5g00400110

  6. Remove coupling (6) from the pump drive.

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