MacDon M150 SP - Manual (Page 67)

WINDROWER OPERATION
Form 169017 / 169087 / 169095
65
Revision C
6.3.7 ADJUSTABLE 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 maneuverability 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.
To adjust the caster tread width, refer to the
following illustrations, and proceed as follows:
CAUTION
Park on a flat, level surface, header on the
ground and the ground speed lever in N-
DETENT position and steering wheel locked.
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.
a. 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 where shown.
NOTE
Lifting device should have lifting capacity of
at least 5000 lb (2270 kg).
b. Remove bolts and washers (A) and (B) from left
and right sides of the walking beam.
c. Slide walking beam extensions (C) inboard or
outboard equal amounts, and align holes at
desired position.
NOTE
Illustration shows widest tread width
adjustment.
IMPORTANT
Center of tread width must be aligned with
center of windrower.
d. Position bracket (D), and install bolts (A) and (B).
The two shorter bolts are installed at the back
inboard locations. Torque as follows:
1. Snug bottom bolts (B).
2. Tighten back bolts (A) to 330 ft·lbf (447 N·m).
3. Tighten bottom bolts (B) to 330 ft·lbf (447
N·m).
e. Lower windrower, and remove lifting device.
f. Re-torque bolts at 5, and 10 hours of operation, or
until stabilized.
C
D
LIFT
HERE
A
B