Checking the Rear-Wheel Alignment
Service Interval:
Every 800 hours—Check the rear wheel
toe-in.
1.
Rotate the steering wheel to position the rear wheels
straight ahead.
2.
Prepare the machine for maintenance; refer to
Preparing for Maintenance (page 52)
.
3.
At axle height, measure the center-to-center distance
at the front and rear of the steering tires.
Note:
The rear wheel toe-in adjustment is correct if
the difference between the front wheel measurement
and the rear wheel measurement is 6 mm (1/4 inch)
or less. (
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Figure 137
1.
Front of the traction unit
3.
Center-to-center distance
2.
6 mm (1/4 inch) or less
than the rear of the tire
4.
If the measurement is greater than 6 mm (1/4 inch),
adjust the rear wheel toe-in; refer to
Rear Wheel Toe-in (page 67)
.
Adjusting the Rear Wheel Toe-in
1.
Loosen the jam nut on each end of the tie rod (
Note:
The end of the tie rod with the external groove
is a left-hand thread.
g004136
Figure 138
1.
Jam nut
3.
Wrench flat
2.
Tie rod
2.
Using the wrench flat to rotate the tie rod.
3.
At axle height, measure the center-to-center distance
at the front and rear of the steering tires.
Note:
The rear wheel toe-in adjustment is correct if
the difference between the front wheel measurement
and the rear wheel measurement is 6 mm (1/4 inch)
or less.
4.
Repeat steps
and
as required.
5.
Tighten the jam nuts.
67