Inspecting and Replacing Alternator/Fan Belt

Service Intervals:

• At first 100 hours • Every 500 hours

1. NOTE: Fan drive belt is equipped with an automatic tensioner which does not require adjustment.

   IMPORTANT: Cab Tractors: DO NOT remove belt guard fastened to A/C compressor. Compressor will be loose if cap screws are removed.

   
   LV12644-UN-22APR05

   A - Hex Socket Head Cap Screw, Washer and Flange Nut

   B - Cap Screw (2 used)

   C - Hex Socket Head Cap Screw

   Remove hex socket head cap screw, washer and flanged nut (A) from right-side guard brace.

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2. Remove hex socket head cap screw (C) from bottom of guard.

3. Remove two cap screws (B) retaining guard to radiator. Remove right-side guard.

4. 
   LV12645-UN-22APR05

   A - Cap Screw (2 used)

   B - Hex Socket Head Cap Screw, Washer and Flange Nut

   C - Hex Socket Head Cap Screw

   Remove hex socket head cap screw, washer and flanged nut (B) from left-side guard brace.

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5. Remove hex socket head cap screw (C) from bottom of guard.

6. Remove two cap screws (B) retaining guard to radiator. Remove left-side guard.

7. 
   LV12646-UN-22APR05

   A - Right-Side Cap Screw

   B - Left-Side Cap Screw

   C - Damper Guard

   Loosen right-side cap screw (A).

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8. Remove left-side cap screw (B).

9. Swing damper guard (C) forward away from damper.

10. 
    LV9596-UN-07AUG04

    A - Belt

    B - Breaker Bar

    Release tension on belt using a long-handle 1/2 in. drive breaker bar (B) to pull tensioner away from engine.

    Remove belt (A) from alternator pulley.

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11. Release tension on tensioner and remove breaker bar.

12. Remove belt.

13. Install new belt in reverse order of removal.