Buhler 2180 - Manual (Page 173)

SECTION 2 - OPERATION
2-127
Adjusting Pressed Steel Wheel
After the rear axle is jacked up and blocked, remove
the disc to hub bolts, 1. Using a suitable lifting device,
remove the wheel and store the wheel and tire where
it won’t fall over. Repeat the procedure on the
opposite wheel and install where the first wheel was
removed.
Torque the disc to hub bolts to 800 N·m (590 ft.-lbs.)
in 68 N·m (50 ft.-lbs.) increments using a diagonal
pattern.
NOTE: Check bolt torque after driving the tractor for
200 m (200 yards), after 1 hour, and 10 hours of
operation and thereafter at the 50-hour service
intervals.
187
Adjusting Cast Center Wheel
After the rear axle is jacked up and blocked, remove
the disc to rim attaching hardware, 1. Remove the
wheel using a suitable lifting device and store where
it won’t fall. Repeat this procedure on the opposite
rim and install on the first disc. If the discs, 2, are to
be switched, remove wheel weights first, then
position discs as required.
Reinstall the rim and weights and tighten all bolts and
nuts.
Repeat the procedure on the other wheel.
Tighten the rim to disc retaining nuts uniformly in an
alternate pattern, 68 N·m (50 ft.-lbs.) at a time, until
a torque of 596 N·m (440 ft.-lbs.) for Grade 8 bolts is
obtained, is obtained.
NOTE: Check hardware torque after driving the
tractor for 200 m (200 yards), after 1 hour, and 10
hours operation and thereafter at the 50-hour service
intervals.
WARNING
Never operate the tractor with a loose wheel or
rim. Always tighten the bolts to the specified
torque and check them frequently.
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