Adjusting Pickup Drive Belt Idler

1. Belt tensioner is designed to protect pickup components. Overtightening reduces this protection. Check adjustment daily.

   Before adjusting idler, perform the following:

   1. Remove access panel.

   2. Start tractor engine and engage PTO.

   ---

   
   

   3. 
      E39756-UN-20FEB96

      A - Jam Nuts

      B - Clearance

      C - Nut

      D - Spacer

      Observe spacer (D) relative to nut (C).
      • If total movement is more than specifications, there may be a burnt or thin spot in the belt or something in the sheave groove.

        Spacer-to-Nut	Movement	3 mm (1/8 in.)

      • Inspect belt and replace if necessary.
      
      

2. Adjust pickup belt idler as follows:

   1. Stop tractor engine and remove key.

   2. Loosen jam nuts (A).

   3. Adjust spring until clearance (B) between nut (C) and top of spacer (D) is within specifications.

      Spacer-to-Nut	Clearance	4—6 mm (5/32—1/4 in.)

   4. Tighten jam nuts (A).

   5. Install access panel.