446D Backhoe Loader Engine Supplement Caterpillar


Hydraulic Oil Cooler - Remove and Install

Usage:

446D DBL

Removal Procedure

Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
ZZ     6V-9513     Face seal Plug     1    
6V-9834 Cap Assembly     1    
9U-7080 Plug     1    
9U-7081 Plug     1    
9U-7084 Plug     1    

Start By:

  1. Remove the hood. Refer to Disassembly and Assembly, "Hood - Remove".

------ 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.

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


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.


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.

Note: Put identification marks on all lines, hoses, wires, and tubes for installation purposes. Plug all lines, hoses and tubes. This helps prevent fluid loss and contamination of the fluid systems.

  1. Drain the hydraulic oil from the machine into a suitable container. The capacity of the hydraulic tank is approximately 57 L (15 US gal).



    Illustration 1g01081917

  1. Remove bolt (1) and position bracket (2) aside.

  1. Repeat Step 2 for the opposite side.



    Illustration 2g01081919

  1. Remove bolts (3). Remove grill (4) .



    Illustration 3g01081922

  1. Remove nut (5) .



    Illustration 4g01081925

  1. Remove bolt (6) and bar (7) .



    Illustration 5g01082170

  1. Remove bolt (8) .

  1. Repeat Step 7 for the opposite side.



    Illustration 6g01082174

  1. Remove bolt (10) and position bracket (9) aside.



    Illustration 7g01082177

  1. Remove bolts (11). Tilt refrigerant condenser (12) forward.



    Illustration 8g01082179

  1. Remove bolt (14). Disconnect tube assembly (13). Remove bolts (15). Place bracket (16) aside.



    Illustration 9g01082197

  1. Loosen hose clamp (18). Disconnect hose (17) .



    Illustration 10g01082201

  1. Mark the orientation of connector (22). Loosen nut (20). Remove connector (22). Remove bolts (21).

  1. Slide hydraulic oil cooler (19) to the right side of the machine. Remove hydraulic oil cooler (19) from the machine.

Installation Procedure




    Illustration 11g01082201

  1. Install hydraulic oil cooler (19) into position.

  1. Install connector (22) into hydraulic oil cooler (19). Orient connector (22). Install bolts (21) .



    Illustration 12g01082197

  1. Connect hose (17). Tighten hose clamp (18) .



    Illustration 13g01082179

  1. Connect tube assembly (13). Position bracket (16). Install bolt (15). Install bolts (14) .



    Illustration 14g01082177

  1. Position condenser (12). Install bolts (11) .



    Illustration 15g01082174

  1. Position bracket (9). Install bolt (10) .



    Illustration 16g01082170

  1. Install bolt (8) .

  1. Repeat Step 7 for the opposite side.



    Illustration 17g01081925

  1. Install bar (7). Secure bar (7) with bolt (6) .



    Illustration 18g01081922

  1. Install nut (5) .



    Illustration 19g01081919

  1. Install grill (4). Secure grill (4) with bolts (3) .



    Illustration 20g01081917

  1. Position bracket (2). Install bolt (1) .

  1. Repeat Step 12 for the opposite side.

  1. Fill the hydraulic tank with hydraulic oil. The capacity of the hydraulic tank is approximately 57 L (15 US gal).

End By: Install the hood. Refer to Disassembly and Assembly, "Hood - Install".

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