Adjusting and Tightening Wheels-Cast with Standard Hubs
CAUTION:
Avoid personal injury. Never operate the engine with transmission in gear when adjusting wheels. Wheels on the ground could pull supported wheels off jackstands.
Never operate tractor with a loose rim, wheel, or hub.
1.
Raise the tractor on level ground and turn wheel so 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:
Strike end of axle with a heavy hammer and use penetrating oil if sleeves are difficult to break loose.
4.
If equipped, turn adjusting screw to slide wheel to desired position. Observe tread width limitations.
5.
Loosen the jack screws all the way against the stop.
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 sleeve, then criss-crossing the other bolts. Retighten bolts to 410 N·m (300 lb-ft) using the same sequence.
Drive tractor a minimum of 100 meters (100 yd) and tighten bolts to 600 N·m (445 lb-ft).
Retighten bolts after working
3 HOURS
and again after
10 HOURS
. Continue to tighten to specified torque daily during the first week of operation.
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