2011/07/11 Caterpillar


New Seals Are Used on the Power Distribution Boxes of Certain Petroleum Generator Sets {7426, 7555}

Usage:

C18 PEJ
Generator Set:
C15 (S/N: PET1-UP)
C18 (S/N: PEJ1-UP)

Description of Change: The new seals are used on the front cover of the power distribution box. Also, new seals are used between the circuit breakers and the top of the box.

Adaptable To: The new seals are adaptable back to first production on the serial numbers that are listed above. Utilize the procedure below for installing the new seals.

This change is effective for the serial numbers listed in Table 1.

Table 1
Effective Serial Numbers    
S/N:PET354-UP    
S/N:PEJ198-UP    

Installation Procedure

  1. Ensure that all power is disconnected and all necessary safety procedures have been followed.



    Illustration 1g02632681

    (1) Cover

    (2) Four cover bolts

    (3) Power distribution box

  1. Remove bolts (1) that secures cover (1) to box (3) .



    Illustration 2g02635779

    (4) Four mounting bolts

  1. Remove mounting bolts (4) that secure the box to the mounting bracket



    Illustration 3g02636980

    (5) Two machine screws

  1. Remove screws (5) that secure the circuit breaker to the top of the box.and



    Illustration 4g02637018

    Circuit breaker removed from the top of the power distribution box




    Illustration 5g02637057

    New 4F-9241 Gasket installed on top of the circuit breaker

  1. Pull the circuit breaker down far enough to slide the new 4F-9241 Gasket on top of the breaker.

    Note: The gasket should fit between the top of the breaker and the inside of the box.

  1. Move the circuit breaker back into position and reinstall the machine screws.

  1. Repeat Step 4 through Step 6 for the remaining three breakers.



    Illustration 6g02635779

    (4) Four mounting bolts

  1. Reinstall mounting bolts (4) in order to mount the power distribution box onto the mounting bracket.



    Illustration 7g02637136

    (5) 5P-5637 Seal

  1. Install the new 5P-5637 Seal around the perimeter of the inside of the cover.



    Illustration 8g02632681

    (1) Cover

    (2) Four cover bolts

    (3) Power distribution box

  1. Reinstall bolts (2) that secure the cover to the box.

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