Adjusting Caster Tread Width - MacDon M105 Operator's Manual

4.3.7 Adjusting Caster Tread Width

The rear casters can be adjusted to a narrow tread width to allow loading and shipping without having to
remove them.
A narrow tread width also suits smaller headers by allowing more space to the uncut crop and provides more
manoeuvrability around poles, irrigation inlets, or other obstacles.
A wider tread width is useful in heavy crops that produce large windrows so that runover is reduced.
DANGER
Stop engine and remove key from ignition before leaving operator's seat for any reason. A child or even a
pet could engage an idling machine.
CAUTION
Park on a flat, level surface, header on the ground, and the ground speed lever in N-DETENT position and
steering wheel locked.
Adjust the caster tread width as follows:
1. Raise rear of windrower slightly so that most of the
weight is off the casters, using a jack or other lifting
device under the frame at (B).
NOTE:
Lifting device should have a lifting capacity of at
least 5000 lb (2270 kg).
2. Remove six bolts (A) four on backside, two on
underside, and washers from left and right side of
walking beam.
3. Slide extensions inboard or outboard equal amounts
and align holes at desired location.
NOTE:
Use the caster wheels to assist in moving the axle by
rotating the caster so that wheel is parallel to the axle.
169890
OPERATION
Figure 4.23: Caster Wheel Extensions
Figure 4.24: Caster Wheel Extensions
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Revision A