938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Pilot Operated Hydraulic Control (Joystick) - Remove Caterpillar


Pilot Operated Hydraulic Control (Joystick) - Remove
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1.1. Removal Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
ZZ  6V-9508  Face Seal Plug 
6V-9829 Cap As 

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, "Hydraulic System Pressure - Release".

Note: SERVICE DATA: TOOLING (ZZ) WILL NOT BE IDENTIFIED IN PHOTOGRAPHS IN THE REMOVAL OR THE INSTALLATION. THIS TOOLING IS SHOWN IN ORDER TO ASSIST THE EXPERIENCED SERVICEMAN.


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, on all hoses and on all wires 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.



    Illustration 1g00984384

  1. Remove screws (1).


    Illustration 2g00984386

  2. Remove screws (2) and remove plate (3).


    Illustration 3g00984387

  3. Remove screws (4) and cover assembly (5).


    Illustration 4g00984388

  4. Disconnect six hose assemblies (6).


    Illustration 5g00984390

  5. Disconnect harness assemblies (9) and (10). Remove nuts (7) and remove pilot control valve (8).

Information System:

3034 Engine for Caterpillar Built Machines Pistons and Connecting Rods - Remove - Serrated Connecting Rod
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Pressure Reducing Valve (Traction Control System) - Remove and Install
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Main Control Valve - Install
D10R Track-Type Tractor Hub Oil (Flexxaire Fan) - Change - If Equipped
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Selector and Pressure Control Valve (Pilot) - Remove and Install
D6N Track-Type Tractor Machine Systems Bulldozer Lift Cylinder (VPAT) - Remove and Install
D6N Track-Type Tractor Machine Systems Bulldozer Tilt Cylinder (VPAT) - Remove and Install
D6N Track-Type Tractor Machine Systems Sweeps - Remove and Install
651E and 657E Wheel Tractor-Scrapers Wheel Scraper Power Train Scraper Wiring Group
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Main Control Valve - Remove
TH350B, TH360B, TH460B and TH560B Telehandlers Engine Supplement Engine Mount (Rear) - Install
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Pilot Operated Hydraulic Control (Joystick) - Assemble
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Diverter Valve (Quick Coupler) - Remove and Install
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Heater Coil - Remove
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Pilot Operated Hydraulic Control (Joystick) - Install
2003/03/10 A New Dust Ejector Group for the Exhaust Prevents Loading on the Muffler {1068}
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Heater Coil - Install
3034 Engine for Caterpillar Built Machines Crankshaft - Install
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Blower Motor (Air Conditioner, Heater) - Remove
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Blower Motor (Air Conditioner, Heater) - Install
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Quick Coupler - Remove
D6R Series II Track-Type Tractor Bulldozer Blade Tilt Control
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Window Wiper and Wiper Motor (Front) - Remove
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems Quick Coupler - Install