140M and 150 Motor Grader Control Valve (Brake) - Remove Caterpillar


Control Valve (Brake) - Remove
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1.1. Removal Procedure

Removal Procedure

Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     311-1362     Vacuum Gauge Gp     1    

Start By:

  1. Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".
  2. Release the system pressure. Refer to Disassembly and Assembly, "System Pressure - Release".


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.



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.


Note: Cleanliness is an important factor. Before you begin the removal procedure, thoroughly clean the exterior of the components in order to prevent dirt from entering the internal mechanism.




    Illustration 1g01397769

  1. Install Tooling (A) onto the hydraulic tank. Attach an air supply hose onto Tooling (A) . Apply 138 kPa (20 psi). This procedure will pull a vacuum on the hydraulic system.



    Illustration 2g01413659

    Photo for illustration purposes only.

  1. Remove bolts (1) . Repeat this step for the opposite side of the machine.

  1. Remove cover (2) .



    Illustration 3g01414858



    Illustration 4g01414867

  1. Remove tube assembly (6) .

  1. Disconnect tube assembly (3) , tube assembly (4) , tube assembly (5) , tube assembly (7) , and tube assembly (8) .

  1. Remove bolts (9) and remove control valve (10) .

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