14H Motor Grader Machine Systems Metering Pump (Steering) - Remove and Install Caterpillar


Metering Pump (Steering) - Remove and Install
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14H Motor Grader Machine Systems [RENR4193]
HYDRAULIC SYSTEM
PUMP GP-METERING
14H Motor Grader Machine Systems Metering Pump (Steering) - Remove and Install
1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
8S-2264  Puller Group 
ZZ  6V-9509  Face Seal Plug 
6V-9830 Cap As 
6V-9508 Face Seal Plug 
6V-9829 Cap As 

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.

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 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.

  1. Turn the battery disconnect switch to the OFF. Refer to Operation and Maintenance Manual, SEBU7477, "Battery Disconnect Switch" for the correct procedure.

  2. Release the hydraulic pressure in the hydraulic system. Refer to Disassembly and Assembly Manual, "Machine preparation for Disassembly and Assembly" for the correct procedure.


    Illustration 1g00930955

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

    Personal injury can result from being struck by parts propelled by a released spring force.

    Make sure to wear all necessary protective equipment.

    Follow the recommended procedure and use all recommended tooling to release the spring force.


  3. Remove button (1). Remove spring (2) and nut (3). Remove pins (4).


    Illustration 2g00930961

  4. Remove wheel (5) with Tooling (A).


    Illustration 3g00930965

  5. Remove screws (6). Remove knob (7) and remove cover (8).


    Illustration 4g00930970

  6. Disconnect six harness assemblies (9). Disconnect five wires (10).


    Illustration 5g00930972

  7. Remove screws (11) and remove cover (12).


    Illustration 6g00930993

  8. Carefully remove insulator (13) from shaft (14). Remove ring (15). Remove brushes (16) and springs (17). Remove bracket (18). Slide retainer (19) off shaft (14).


    Illustration 7g00930997

  9. Remove cover (20A). Remove five hoses (20). Remove bolts (21) and remove the rear section of metering pump (22). Remove the front section of metering (23).

Installation Procedure

Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.



    Illustration 8g00930997

  1. Install the front section of metering (23). Install the rear section of metering pump (22). Install bolts (21). Install five hoses (20). Install cover (20A).


    Illustration 9g00930993

  2. Slide retainer (19) on shaft (14). Install bracket (18). Install brushes (16) and springs (17). Install ring (15). Carefully install insulator (13) on shaft (14).


    Illustration 10g00930972

  3. Install cover (12) and install screws (11) .


    Illustration 11g00930970

  4. Connect six harness assemblies (9). Connect five wires (10).


    Illustration 12g00930965

  5. Install cover (8) and install knob (7). Install screws (6).

  6. Install wheel (5).


    Illustration 13g00930955

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

    Personal injury can result from being struck by parts propelled by a released spring force.

    Make sure to wear all necessary protective equipment.

    Follow the recommended procedure and use all recommended tooling to release the spring force.


  7. Install pins (4). Install spring (2) and nut (3). Tighten nut (3) to a torque of 67 ± 7 N·m (49 ± 51 lb ft). Remove button (1).

  8. Turn the battery disconnect switch to the ON. Refer to Operation and Maintenance Manual, SEBU7477, "Battery Disconnect Switch" for the correct procedure.

  9. Check the hydraulic oil level. Refer to Operation and Maintenance Manual, SEBU7477, "Hydraulic System Oil Level - Check" for the correct procedure.

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