MacDon 3020 Pull-Type Windrower - Manual (Page 75)

64
MAINTENANCE/SERVICE
WHEELS AND TIRES (continued)
Wheel Alignment
Soil conditions may make it necessary to change
the alignment of the left wheel to keep the
windrower trailing at approximately 90
° to the line
of travel.
NOTE: For 36 ft. units, see "Stabilizer Spring
Adjustment" in this section.
To adjust left wheel alignment:
1. Loosen two bolts (A).
2. If machine runs ahead, loosen adjuster nut (B)
and tighten adjuster nut (C) to angle wheel
further left.
3. If machine trails back, loosen adjuster nut (C)
and tighten adjuster nut (B) to angle wheel
further right.
4. Tighten bolts (A) and adjuster nut to secure the
position.
IMPORTANT: It is not normally necessary to
adjust the alignment of the right hand wheel.
However, if operating in steep hills it is important to
keep the left and right wheels parallel to prevent
the machine from running ahead. Under these
circumstances, it may be necessary to adjust the
right wheel alignment.
To adjust right wheel alignment:
1. Add washers (D) to right wheel cylinder
assembly to angle the right wheel further left.
NOTE: Spare washers are stored at pin (E).
2. Remove washers (D) to angle the right wheel
further right.
3. Level cutterbar if required. See "Levelling
Cutterbar" page 26.
IMPORTANT: Do not add or remove washers (D)
in an attempt to level cutterbar.
LEFT WHEEL ALIGNMENT
A
C
B
RIGHT WHEEL ALIGNMENT
DO NOT USE THIS ADJUSTMENT
TO LEVEL CUTTERBAR
D
E