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GB - 15
WING MOWERS
1. Remove wing mowers from crate.
Position on each side of tractor with the
yoke pins (1, Figure 10) facing the
tractor.
2. Remove the two wing mower belts (2,
Figure 11) fastened to the rear cutting
unit and install over lower countershaft
pulleys (3, Figure 11) on each side of the
tractor. Place belt loosely over the end of
the wing mower pull yoke (4, Figure 10).
3. Move left and right cutting units into
position so that the yoke pins enter the
pivot holes in the pull yoke.
NOTE: Forward yoke pins must pass inside
belt before attaching pins to pull yokes.
4. Secure yoke pins in pull yoke with 3/4”
I.D. flat washers and 1/4” x 1–1/2” cotter
pins (5, Figure 10). Extra washers
supplied are to be used as spacers, if
needed, to allow a snug but free-moving
pivot connection.
5. Pull cutting units forward so that the H
Frames (6, Figure 10) will compress the
springs (7, Figure 10), and install belts
over reel pulleys (8, Figure 10).
6. Compress belts by hand to check for
free movement of the H-frames back
and forth on the H-frame shafts (9,
Figure 10).
WING MOWER LIFT
1. Position lift chain (1, Figure 12) that has
been previously attached to lift lever (2,
Figure 12) so that the longest chain
extends away from the tractor.
2. Attach it to attachment tab (3, Figure 12)
located on the middle of the front edge
of the wing mower using a 3/8”-24 x 1-
3/4” bolt, two 3/8” flat washers, and two
3/8”-24 lock nuts.
3. Place bolt through the ends of the chain
so that lock nuts on each side of
attachment tab allow chain to move
freely between the flat washers.
4. Remove the cap screw (4, Figure 12)
closest to the inside of the tractor
fastening the shield to the cross bar.
5. Attach chain bracket (5, Figure 12),
positioning the bracket with the longest
leg to the outside of the cutting unit.
6. Fasten the shorter length of chain to the
chain bracket by using similar fasteners
and method described above.
7. Repeat lift chain installation procedure
on the other side of the mower.
8. Test wing mower lift operation by pulling
lift lever all the way back (toward the
rear). Wing mowers should raise 2” to 3”
above ground level. Adjust, if necessary,
by fastening through another link in the
chain at the upper end of the lift
assembly.
ENGINE CRANKCASE
Crankcase oil has been installed at the
factory. However, it is recommended that the
engine be checked for proper oil level before
starting. Refer to separate engine manual
included with each 8400 Mower.
HYDRAULIC OIL
1. The hydraulic oil has been installed in
the oil tank (1, Figure 13) at the factory,
however, it is recommended that the oil
level be checked before operation.
Figure 11
Figure 12