Adjusting Pickup Drive Belt Idler

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

1. Before adjusting idler, perform the following:

a. Remove access panel.

b. Start tractor engine and engage PTO.

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A-Jam Nuts


B-Clearance


C-Nut


D-Spacer

c. 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.

Specification

Spacer-to-Nut -Movement 3 mm (1/8 in.)
  • Inspect belt and replace if necessary.

2. Adjust pickup belt idler as follows:

a. Stop tractor engine and remove key.

b. Loosen jam nuts (A).

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

Specification

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

d. Tighten jam nuts (A).

e. Install access panel.

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