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3516C Petroleum Engine Caterpillar


Fuel System - Prime

Usage:

3516C NG3

  • Open the fuel supply valve. Ensure that the engine will not start during the priming procedure. Turn the start switch to the OFF position.
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    Illustration 1g00736817
    (1) Fuel priming pump plunger

  • Turn the fuel priming pump plunger counterclockwise to release the lock plate from the retainer.

  • Operate the fuel priming pump until the air in the fuel system has been pumped through the fuel return line back to the fuel tank.

  • Press the fuel priming pump plunger to the locking position. Turn the fuel priming pump plunger clockwise to engage the lock plate in the retainer.

    Note: Enable the starting system only after all maintenance has been completed.

    Priming Procedure for Dry Starting

    If the air cannot be purged from the fuel system and the engine will not start, see Special Instruction, SEHS9586, "3500 EUI Fuel Priming Procedure".

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