854G Wheel Dozer Machine Systems Caterpillar


Main Control Valve - Remove

Usage:

854G 1JW

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
138-7575  Link Bracket 

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, on all hoses and on all wires 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 1g00400598

  2. Open access door (1) on the top of the front frame.


    Illustration 2g00400599

  3. Remove cover assembly (2) from both sides of the front frame.


    Illustration 3g00401402
    Left Side


    Illustration 4g00401403
    Right Side

  4. Disconnect cable (4) from hoist control lever (3).

  5. Disconnect eleven hose assemblies from main control valve (5).

  6. Remove three mounting bolts (6).


    Illustration 5g00401406


    Illustration 6g00401408

  7. Attach Tooling (A), a hoist and a suitable lifting sling to main control valve (5).

  8. Carefully remove main control valve (5). The weight of the main control valve is 100 kg (220 lb).

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