Adjusting and Tightening Rear Steel Wheels—Cast Hubs

RXA0059686-UN-11MAR02

A - Lower Hub Center Bolt

B - Outer Hub Sleeve Bolts

C - Inner Jack Screws

D - Adjusting 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 bolt (A) against retaining nut and loosen outer hub sleeve bolts (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 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 screw (D) to slide wheel to desired position.

5. Loosen the jack 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 bolts are critical and require repeated torquing.

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

7. Tighten bolts to secondary torque specifications using same sequence.

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

   Item	Measurement	Specification
   Wheel Hub Sleeve Bolts
   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 bolts may loosen as sleeve is tightened. Repeat star shaped torquing pattern until ALL sleeve bolts maintain proper torque. Failure to follow procedure could result in damage to equipment and may result in personal injury.

9. Retighten bolts after working 3 HOURS, 10 HOURS, and DAILY during the first week of operation and then every 250 hours.