826K Landfill Compactor, 825K Soil Compactor and 824K Wheel Dozer Machine Systems Main Control Valve - Remove and Install Caterpillar


Main Control Valve - Remove and Install
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1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
439-3940  Bracket As 
421-5662  Lifting Eye Assembly 

Start By:

  1. Connect the steering frame lock.

  2. Release the hydraulic system pressure.


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, "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.



NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 1g03723117

  1. Remove covers (1) and (2).


    Illustration 2g03723120

  2. Attach Tooling (A) and a suitable lifting device to cover assembly (3). The weight of cover assembly (3) is approximately 74 kg (163 lb).

  3. Remove bolts (4) and the washers.


    Illustration 3g03723148

  4. Remove bolts (5) and the washers. Remove bolt (6) (not shown) and the washer. Repeat this step for the opposite side of cover assembly (3).

  5. Use Tooling (A) and the suitable lifting device in order to remove cover assembly (3).


    Illustration 4g03723179

  6. Disconnect hose assemblies (7).

  7. Disconnect tube assemblies (8).


    Illustration 5g03723199

  8. Disconnect hose assemblies (9).

  9. Remove tube assemblies (10).


    Illustration 6g03723239

  10. Remove fittings (11).

  11. Disconnect harness assemblies (12). Cut the cable straps.


    Illustration 7g03723291

  12. Attach Tooling (B) and a suitable lifting device to main control valve (13). The weight of main control valve (13) is approximately 38 kg (84 lb).

  13. Remove bolts (14) and the washers. Remove bolts (15) and the washers. Use Tooling (B) and the suitable lifting device in order to remove main control valve (13).

Installation Procedure

  1. Install main control valve (13) in the reverse order of removal.

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