Challenger 35, Challenger 45 and Challenger 55 Agricultural Tractors Caterpillar


Air Conditioner Belt - Inspect/Adjust/Replace

Usage:

45 3BK

Inspect Belt Tension




Illustration 1g00318987

  1. Raise the hood in order to access the air conditioner belt.

    Note: See Operation and Maintenance Manual, "Engine Compartment Hood - Raise/Lower".

  1. Inspect the condition of the belt. Replace any belt that is excessively worn.

  1. In order to check the belt tension, apply 110 N (25 lb) of force midway between the pulleys. Correctly adjusted belts will deflect 13 to 19 mm (.5 to .75 inch).

  1. If the belt deflection is not correct, adjust the belt.

Adjust Belt Tension




Illustration 2g00491210

  1. Loosen pivot bolt (1) and adjustment bolt (2) .

  1. Rotate the compressor in order to adjust belt tension. Use a 1/2 inch breaker bar in square hole (3) in order to rotate the compressor.

  1. Maintain tension on the belt while you tighten adjustment bolt (2). Then, tighten pivot bolt (1) .

  1. Measure the belt tension. If the belt deflection is not correct, repeat this procedure.

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