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Adjusting the Height of Cut
Center Cutting Unit
The height of cut is adjustable from 25 to 127 mm (1
to 5 inches) in 13 mm (1/2 inch) increments. To adjust
the height of cut on the center cutting unit, position
the castor-wheel axles in the upper or lower holes of
the castor forks, add or remove an equal number of
spacers from the castor forks, and secure the rear
chain to the desired hole.
1.
Park the machine on a level surface.
2.
Start the engine and raise the cutting units to
change height of cut.
3.
Shut off the engine, engage the parking brake,
and remove the key from the ignition after the
cutting unit is raised.
4.
Position the caster-wheel axles in the same
holes in all caster forks.
Figure 18
1. Tensioning cap
2. Spacers
3. Shims
Note:
When operating in 64 mm (2-1/2 inch)
height of cut or higher, install the axle bolt in the
lower caster-fork hole to prevent grass buildup
between the wheel and the fork. When you
operate the machine at a height of cut lower
than 64 mm (2-1/2 inches) and detect grass
buildup, reverse the machines direction to pull
any clippings away from the wheel/fork area.
5.
Remove the tensioning cap from the spindle
shaft and slide the spindle out of the caster arm
(Figure
18).
6.
Install 2 shims onto the spindle shaft as they
were originally installed.
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4. Top axle-mounting hole
5. Caster wheel
Note:
These shims require a level across
the entire width of the cutting units. Slide the
appropriate number of 13 mm (1/2 inch) spacers
(refer to the chart below) onto the spindle shaft
to attain the desired height of cut; then slide the
washer onto the shaft.
Refer to the following chart to determine the
combinations of spacers for the setting
19):
7.
Push the caster spindle through the front caster
arm.
8.
Install the shims (as they were originally
installed) and the remaining spacers onto the
spindle shaft.
9.
Install the tensioning cap to secure the assembly.
10.
Remove the hairpin cotter and clevis pin
securing the height-of-cut chains to the rear of
the cutting unit
1. Height-of-cut chain
11.
Mount the height-of-cut chains to the desired
height-of-cut hole with the clevis pin and hairpin
cotter
(Figure
26
Figure 19
(Figure
20).
Figure 20
2. Clevis pin and hairpin
cotter
21).
(Figure
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