Inspecting Fan Belt Tensioner

NOTE: A belt tension gauge will not give an accurate measurement of the belt tension. Measure tensioner spring tension using a torque wrench.

2. Put a mark (A) on swing arm of tensioner as shown.

3. Measure 21 mm (0.83 in.) from (A) and put a mark (B) on tensioner mounting base.

4. Rotate the swing arm using a torque wrench until marks (A and B) are aligned.

• 5325N: PUSH tensioner with torque wrench toward engine
• 5425N and 5525N: PULL tensioner with torque wrench away from engine

5. Record torque wrench measurement and compare with specification. If recorded measurement is below specifications, have your John Deere dealer replace tensioner assembly.

Specification

6. Install fan belt. (See REPLACING FAN BELT in this section.)

A-Mark on Swing Arm
B-Mark on Tensioner Mounting Base
C-Torque Wrench

OUMX005,0001A01 -19-28AUG04-1/1