97TIRES, WHEELS AND BALLAST
WHEEL ADJUSTMENT
To avoid personal injury or death:
A When working on slopes or when working with
trailer, set the wheel tread as wide as practical
for maximum stability.
A Support tractor securely on stands before
removing a wheel.
A Do not work under any hydraulically supported
devices. They can settle, suddenly leak down,
or be accidentally lowered. If necessary to work
under tractor or any machine elements for
servicing or adjustment, securely support them
with stands or suitable blocking beforehand.
A Never operate tractor with a loose rim, wheel,
or axle.
BFront Wheels (with 4-wheel drive)
Front tread width can be adjusted as shown with the
standard equipped tires.
To change the tread width
1. Remove the wheel rim and disk mounting bolts.
2. Change the position of the rim and tire to the desired
position, and tighten the bolts.
3. Adjust the toe-in [2 to 8mm (0.1 to 0.3 in.)]
See "Adjusting Toe-in" in "EVERY 200 HOURS" in
"PERIODIC SERVICE" section.
A Always attach wheels as shown in the drawing.
A If not attached as illustrated, transmission parts may
be damaged.
A When re-fitting or adjusting a wheel, tighten the bolts
to the following torques then recheck after driving the
tractor 200m (200 yards) and 10 times of shuttle
movement by 5 m (5 yards), and thereafter according
to service interval. (See "MAINTENANCE" section.)
A Wheels with beveled or tapered holes: Use the
tapered side of lug nut.
To avoid personal injury or death:
A Before jacking up the tractor, park it on a firm
and level ground and chock the rear wheels.
A Fix the front axle to keep it from pivoting.
A Select jacks that withstand the machine weight
and set them up as shown below.
*: Need to limit turning angle at 1580 mm (62.2 in.)
width setting to 42 degrees. Refer to the chart
provided for additional instructions.
(1) 260 to 304 N-m (26.5 to 31 kgf-m) (192 to 224 ft-lbs)
(2) [Waffle wheel]
298 to 366 N-m (30.4 to 37.3 kgf-m) (220 to 270 ft-lbs)
(1) Jack points
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