Adjusting Rear Wheels-Cast
CAUTION:
Avoid personal injury or death. NEVER run the engine with transmission in gear and rear wheels off the ground. Front wheels on tractors with MFWD could pull rear wheels off support. MFWD must be DISENGAGED and transmission in NEUTRAL to rotate axle by hand.
1.
Raise the tractor on level ground and turn wheel so the rack on the axle is upward.
2.
Loosen the lower hub center bolt against the retaining nut. Loosen the outer hub sleeve bolts.
3.
Tighten the inner jack screws on the upper and lower hub sleeves to loosen sleeves. Tighten jack screws up to 500-600 N·m (370-440 lb-ft) if necessary.
NOTE:
If sleeves are difficult to break loose, strike end of axle with a heavy hammer. Penetrating oil may also help. Retighten jack screws.
4.
Turn adjusting screw to slide wheel to desired position. Observe tread width limitations.
5.
Back off the jack screws all the way against the stop.
CAUTION:
Never operate tractor with a loose rim, wheel, or hub.
IMPORTANT:
Keep the face of hub sleeves even to prevent hub breakage or bolt loosening.
6.
Tighten hub sleeve bolts to 204 N·m (150 lb-ft) beginning with the center bolt in the lower hub sleeve, then criss-crossing the other bolts. Retighten bolts to 410 N·m (300 lb-ft) using the same tightening sequence.
Drive tractor a minimum of 100 m (100 yd) and tighten bolts to 600 N·m (445 lb-ft).
Recheck all bolts after working three hours and again after ten hours to insure correct torque specification.
|