C9.3 Engines for Caterpillar Built Machines Fuel Priming Pump - Remove and Install Caterpillar


Fuel Priming Pump - Remove and Install
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C9.3 Engines for Caterpillar Built Machines [UENR0130]
FUEL SYSTEM
PUMP GP-FUEL PRIMING
C9.3 Engines for Caterpillar Built Machines Fuel Priming Pump - Remove and Install
1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

  1. Turn the fuel supply to the OFF position and turn the power disconnect switch to the OFF.


    Illustration 1g02138690
    Typical Example

  2. Disconnect the fuel line (1) to the ARD manifold from both ends.


    Illustration 2g02140391
    Typical Example

  3. Disconnect the solenoid harness (2).


    Illustration 3g02139134

  4. Remove the bolts (3) from the manifold.


    Illustration 4g02139144

  5. Remove the manifold (4).


    Illustration 5g02138698

  6. Remove the two locknuts (5).


    Illustration 6g02139150

  7. Write down the polarity and remove the wires (6) from the terminal studs. The polarity is designated by “+” and “-” signs around the terminal studs.


    Illustration 7g02139164

  8. Remove the seal (7).


    Illustration 8g02139169

  9. Remove the pump assembly (8).


    Illustration 9g02167735

  10. Remove the two backup rings (9), seal (10), and seal (11) from the pump assembly.

Installation Procedure



    Illustration 10g02139275
    Proper orientation of the new fuel priming pump.

  1. Use the pump seal installer that is provided in the pump kit to press in the new pump (12) and seals.

    Note: The outlet of the pump should be at the top center position.



    Illustration 11g02139286

  2. Reinstall the wires on the terminal studs. Install new locknuts (6). Torque locknuts to 1.3 N·m (1 lb ft).


    Illustration 12g02139307

  3. Install new seal (7).


    Illustration 13g02139309

  4. Reinstall the manifold (4).


    Illustration 14g02139311

  5. Reinstall bolts (3). Torque the bolts to 12 ± 3 N·m (9 ± 2 lb ft).


    Illustration 15g02138801

  6. Replace the filter connector fitting (13).


    Illustration 16g02139316

  7. Reconnect the solenoid harness (2).

  8. Turn the fuel supply to the ON position and turn the power disconnect switch to the ON.

  9. Use two people in order to flush the fuel pump and fuel line (1) into a suitable container for disposal. The fuel pump can be activated by turning on the key or pressing the manual switch. The manual switch, if available, is located on the primary fuel filter base.

  10. Connect fuel line (1) to the ARD manifold.

  11. After reassembly, prime the engine by turning on the key or pressing the manual switch. The manual switch, if available, is located on the primary fuel filter base. Visually check for leaks around the pump and around the connections on the ARD manifold. If leaks are observed, resolve the leak issue before proceeding further.

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