994F Wheel Loader Machine Systems Caterpillar


Check and Relief Valve (Main Hydraulic) - Remove

Usage:

994F 442

Removal Procedure

Note: Cap all hydraulic lines and fittings that are disconnected in order to prevent oil loss. This will also keep contaminants out of the hydraulic system.

Rear Check and Relief Valves

Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     FT-1114     Vacuum Cap     1    



    Illustration 1g01421619

  1. Install Tooling (A) onto the hydraulic oil tank for the implement system.



    Illustration 2g01428829

  1. The rear check and relief valve assembly is located on each side of the machine near the rod end of the steering cylinders. Disconnect hose assemblies (1) and (2) .



    Illustration 3g01428830

  1. Disconnect hose assembly (3) from the inside of the check and relief valve assembly.



    Illustration 4g01428832

  1. Remove bolts (4) and remove the check and relief valve assembly (5). Repeat for the other side.

Front Check and Relief Valves

Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
A     FT-1114     Vacuum Cap     1    



    Illustration 5g01421619

  1. Install Tooling (A) onto the hydraulic oil tank for the implement system.



    Illustration 6g01428894

  1. The front check and relief valve assembly is located on each side of the machine above the front drive shaft. Disconnect hose assemblies (1) and (2) .



    Illustration 7g01428895

  1. Disconnect hose assemblies (3) from the front and the back of the front check and relief valve assembly.



    Illustration 8g01428897

  1. Remove bolts (4) and remove the front check and relief valve assembly (5) .

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