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


Piston Pump (Hydraulic Fan) - Remove

Usage:

938G II B9Y

Removal Procedure

Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     185-3630     Strap Wrench As     1    
ZZ     6V-9507     Face Seal Plug     1    
6V-9508 Face Seal Plug     2    
6V-9509 Face Seal Plug     2    
6V-9511 Face Seal Plug     1    
6V-9512 Face Seal Plug     1    
6V-9828 Cap As     1    
6V-9829 Cap As     2    
6V-9830 Cap As     2    
6V-9832 Cap As     1    
6V-9833 Cap As     1    

Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.


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 work tools have been lowered to the ground, and the 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, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses, and tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.

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.

  1. Open the hood.

  1. Drain the hydraulic oil into a suitable container for storage or disposal. The capacity of the cooling system is 76 L (20.1 US gal).



    Illustration 1g00984121

  1. Use Tooling (A) to remove filter (1) .



    Illustration 2g00984123

  1. Remove tube assembly (2). Disconnect hose assemblies (3), (4), and (5) .



    Illustration 3g00984126

  1. Disconnect hose assembly (7) and tube assembly (6). Remove bolts (9). Position bracket assembly (8) out of the way.



    Illustration 4g00984143

  1. Remove bolts (11) and remove fan pump (10) .

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