Kubota M7131, Operator'S Manual

Page: 213 / 298

181 TIRES, 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.
B
Rear Wheels with Bar Type Axle
Rear tread width can be adjusted as shown with the
standard equipped tires.
To change the tread width:
1. Clean the axle with a wire brush.
2. Keep the wheel whose tread will be readjusted slightly
above the floor.
3. There are 4 flange bolts. Remove the 2 diagonally
opposite to each other and loosen the other two.
4. Apply the removed 2 bolts into the jack bolt holes.
Tighten up these 2 bolts evenly and draw out the tire
flange toward yourself.
5. Slide the wheel to a desired tread width. If the retainer
and the bar axle are stuck too hard to slide the wheel,
drive a wedge in the retainer’s slot for smooth motion.
6. Remove the jack bolts and fix the tire flange and
retainer with the bolts.
7. Use the same procedure for the other-side wheel.
A
For easy tread width readjustment, preferably
dismount the rear wheel ballast to lighten the total
weight of the wheel.
A
After readjusting to a new tread width, make sure there
is enough clearance between the tire and tire fender,
as well as between the tire and lower link.
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.)
(1) Screw hole for jack up
(1) Bar axle
(2) Retainer
(3) Tire flange
(4) Wheel disc
(5) 2-Jack bolts
(6) Bolt (A) "CLEARANCE"
(1) Retainer (A) "SLOT"