FUEL SUPPLY PUMP REMOVAL

CAUTION / NOTICE / HINT

Note:

  • When replacing the injector assemblies (including shuffling the injector assemblies between the cylinders), common rail sub-assembly, intake manifold or cylinder head sub-assembly, it is necessary to replace the injection pipes with new ones.

  • When replacing the fuel supply pump assembly, common rail assembly, intake manifold or cylinder head sub-assembly, it is necessary to replace the fuel inlet pipe sub-assembly with a new one.

PROCEDURE

  1. PRECAUTION

    Note:

    After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work.

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  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

    Note:

    When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

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  3. REMOVE NO. 1 ENGINE COVER

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  4. REMOVE AIR CLEANER CAP SUB-ASSEMBLY

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  5. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

  6. REMOVE AIR CLEANER CASE

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  7. REMOVE NO. 3 FUEL HOSE

    1. A271578

      Slide the 2 clamps and remove the No. 3 fuel hose from the No. 2 nozzle leakage pipe assembly and fuel supply pump assembly.

  8. DISCONNECT NO. 1 FUEL HOSE

    1. A271579

      Slide the clamp and remove the No. 1 fuel hose from the fuel supply pump assembly.

  9. REMOVE FUEL INLET PIPE SUB-ASSEMBLY

    Note:

    After removing the fuel inlet pipe sub-assembly, cover the common rail and supply pump with electrical tape to prevent dirt from entering them.

    1. A271571

      Remove the nut and 2 No. 2 injection pipe clamps.

    2. A271572

      Using a 14 mm union nut wrench, remove the fuel inlet pipe sub-assembly.

  10. REMOVE FUEL HOSE PROTECTOR (for DPF)

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  11. REMOVE FUEL TUBE SUB-ASSEMBLY (for DPF)

    1. A203047

      Disconnect the exhaust fuel addition injector connector.

    2. A271580

      Disconnect the fuel tube sub-assembly.

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    3. A271581C01

      *1

      Union Bolt

      *2

      Check Valve

      Remove the check valve and gasket.

    4. Remove the union bolt, gasket and fuel tube sub-assembly.

  12. REMOVE NO. 2 FUEL PIPE (for CCo)

    1. A271606C01

      *1

      Union Bolt

      *2

      Check Valve

      Remove the check valve and gasket.

    2. Remove the union bolt, gasket and No. 2 fuel pipe.

  13. REMOVE FUEL SUPPLY PUMP ASSEMBLY

    1. A271557

      Disconnect the fuel temperature sensor connector.

    2. Disconnect the suction control valve connector.

    3. A203055

      Remove the 2 bolts, fuel supply pump assembly and No. 1 supply pump drive coupling.

    4. Remove the O-ring from the fuel supply pump assembly.