3408E Engine Supplement for 769D Off-Highway Trucks and 771D Off-Highway Quarry Trucks Caterpillar


Fan Drive - Remove

Usage:

769D BBB

Removal Procedure

Start By:

  1. Remove the fan spider. Refer to Disassembly and Assembly, "Fan - Remove and Install".



    Illustration 1g00833063

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

    The V-belts are under tension from the spring. If the wrench slips while releasing the belt tension, personal injury may result. Be sure the wrench is properly engaged with the belt tightener.

    ----------------------

  1. Position a wrench on the belt tensioner and carefully release the tension of spring (1) on V-belts (2) .

  1. Remove three V-belts (2) .



    Illustration 2g00833087

  1. Remove bolt (3) from the bracket for the grease fitting.



    Illustration 3g00833092

  1. Position a lifting sling around belt tightener (4) and the fan drive, as shown. Secure the lifting sling to a suitable hoist.



    Illustration 4g00833099

  1. Remove two bolts (6). Remove two nuts and remove two washers (5). Remove the fan drive and the belt tightener. The weight of fan drive and belt tightener is 62 kg (137 lb).

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