MacDon M1170 Assembly Instructions Manual page 37

5. Rotate the caster so the wheel (A) is parallel to the
walking beam to assist with moving the extensions. Pull
walking beam extension (B) out to desired position and
line up bolt holes.
NOTE:
The walking beam extension (B) can be adjusted into
three working positions.
6. Install two M24 x 60 bolts and washers (C) on bottom of
beam. Do NOT tighten.
7. Install two M24 x 60 bolts coated with anti-seize
compound and M24 flat washers (A) from the toolbox in
the outboard side of the walking beam. Do NOT fully
tighten.
NOTE:
Depending on the extent of walking beam position,
outboard bolts may need to be installed first.
8. Place support brackets (B) onto walking beam as
shown and secure with two M24 x 60 bolts coated with
anti-seize compound and M24 flat washers (C).
Do NOT fully tighten.
IMPORTANT:
Ensure support bracket plate (B) is parallel or is
installed straight.
9. Tighten bolts as follows:
a. Snug bottom bolts (A), then snug back bolts (B).
b. Torque back bolts (B) to 745–770 Nm
(550–570 lbf·ft).
c. Torque bottom bolts (A) to 745–770 Nm
(550–570 lbf·ft).
IMPORTANT:
Torque bolts after first 5 hours of operation, and then
again after 10 hours.
214735
ASSEMBLING THE WINDROWER
Figure 3.23: Walking Beam Extension
Figure 3.24: Anti-Shimmy Brackets
Figure 3.25: Walking Beam Bolts
27
B
A
B
A
C
C
B
A
Revision A