Rotate or Replace Upper Drive Roll Chain Idler Bushing

Rotate Bushing

1. 
   E54758-UN-07JUL06

   A - Bushing

   B - Cap Screw

   C - Cap Screw and Washer

   When worn grooves in bushing (A) exceed specifications, remove cap screw (B).

   Item	Measurement	Specification
   Bushing	Worn Grooves	6—7 mm (1/4—5/16 in.)

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2. Rotate bushing (A) and install cap screw (B).

Replace Bushing

1. Remove cap screw and washer (C).

2. Remove tension cylinder and washer from pin.

3. Remove cap screw (B) and bushing (A).

4. Install new bushing. Fasten with cap screw (B).

5. Install washer and cylinder onto pin.

6. Install cap screw and washer (C). Tighten to specifications.

   Item	Measurement	Specification
   Tension Cylinder-to-Force	Torque	140 N·m (105 lb.-ft.)