Adjusting and Tightening Rear Steel Wheels—Cast Hubs

RXA0059686-UN-11MAR02

A - Lower Hub Center Cap Screw

B - Outer Hub Sleeve Cap Screws

C - Inner Jack Cap Screws

D - Adjusting Cap Screw

CAUTION: Avoid personal injury. NEVER run the engine with transmission in gear and rear wheels off the ground. MFWD wheels could pull rear wheels off support. MFWD must be disengaged and transmission in NEUTRAL to rotate axle.

1. Raise tractor on level ground and turn wheels so rack on axle is on top.

2. Loosen lower hub center cap screw (A) against retaining nut and loosen outer hub sleeve cap screws (B).

   NOTE: Strike end of axle with a heavy hammer and use penetrating oil if sleeves are difficult to break loose.

3. Tighten inner jack cap screws (C) on upper and lower hub sleeves as necessary to loosen sleeves.

4. NOTE: Observe tread width limitations when adjusting rear wheels.

   Turn adjusting cap screw (D) to slide wheel to desired position.

5. Loosen the jack cap screws (C) all the way against stop.

   CAUTION: Avoid the possibility of personal injury. Failure to follow torquing sequence and procedure will result in damage to equipment and may result in personal injury. Wheel cap screws are critical and require repeated torquing.

6. Tighten hub sleeve cap screws (B) to initial torque specifications beginning with center cap screw in lower sleeve, then tighten remaining cap screws in diagonal method.

7. Tighten cap screws to secondary torque specifications using same sequence.

8. Drive tractor a minimum of 100 meters (100 yd) and tighten cap screws to final torque specifications.

   Item	Measurement	Specification
   Wheel Hub Sleeve Cap Screws
   Initial	Torque	204 N·m (150 lb-ft)
   Secondary	Torque	410 N·m (300 lb-ft)
   Final	Torque	600 N·m (445 lb-ft)

   IMPORTANT: Some sleeve cap screws may loosen as sleeve is tightened. Repeat star shaped torquing pattern until ALL sleeve cap screws maintain proper torque. Failure to follow procedure could result in damage to equipment and may result in personal injury.

9. Retighten cap screws after working 3 HOURS, 10 HOURS, and DAILY during first week of operation and every 250 hours.