938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Caterpillar


Brake Control Valve (Service) - Remove and Install

Usage:

938G II B9Y

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 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, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.

Dispose of all fluids according to local regulations and mandates.


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

Personal injury can result from hydraulic oil pressure and hot oil.

Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.

Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.

----------------------

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

  1. Apply the parking brake.



    Illustration 1g00278598

    Note: The service brake control valve is located on the right side of the machine beneath the cab.

  1. Remove five bolts (1) and panel (2) .



    Illustration 2g00278746

  1. Disconnect five hose assemblies (3) .

  1. Remove two bolts (4). Remove service brake control valve (5) .

Installation Procedure




    Illustration 3g00278746

  1. Install service brake control valve (5) and two bolts (4) .

  1. Connect five hose assemblies (3) .



    Illustration 4g00278598

  1. Install panel (2) and five bolts (1) .

End By: Separate the steering frame lock. Refer to Disassembly and Assembly, "Stering Frame Lock - Separate and Connect".

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