938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Selector and Pressure Control Valve (Pilot) - Remove and Install Caterpillar


Selector and Pressure Control Valve (Pilot) - Remove and Install
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1.1. Removal Procedure
2.1. Installation Procedure

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".

  3. Remove the secondary steering pump and the electric motor. Refer to Disassembly and Assembly, "Secondary Steering Pump and Electric Motor - Remove and Install".


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! ------

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 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.

Note: The hydraulic tank does not need to be drained in order to remove the hose assemblies from the selector and pressure control valve.

  1. Activate the parking brake.


    Illustration 1g00984354

  2. Disconnect hose assemblies (1).

  3. Remove bolts (2). Remove the selector and pressure control valve (3).

Installation Procedure



    Illustration 2g00984354

  1. Install the selector and pressure control valve (3). Install bolts (2).

  2. Connect hose assemblies (1).

End By:

  1. Separate the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".

  2. Install the secondary steering pump and the electric motor. Refer to Disassembly and Assembly, "Secondary Steering Pump and Electric Motor - Remove and Install".

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