769D Off-Highway Truck/Tractor and 771D Quarry Truck Caterpillar


Engine Air Precleaner - Clean

Usage:

769D BBB


Illustration 1g00791749

When the debris in the precleaners reach the full level, empty the precleaners.


NOTICE

Service the engine air precleaners only when the engine is stopped. Engine damage could result.


  1. Loosen the wing nut on each precleaner cover. Remove the precleaner covers.

  2. Remove the precleaner bowls. Empty the precleaner bowls.

  3. Clean the precleaner bowls.

    The bowls may be cleaned by using the following methods:

    • Air pressure

    • Water pressure

    • Detergent washing

    After washing the bowls, dry the bowls completely.

  4. Inspect the precleaner bowls after you clean the bowls. If a bowl is damaged, replace the bowl.

  5. Reinstall the precleaner bowls. Reinstall the precleaner covers. Tighten the wing nut on each cover.

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