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Operation
Cutting Unit General
Information
Keep the flail blades sharp and in good condition to
ensure good cutting performance, minimum power
consumption, and good quality of cut.
The cutting unit floats to follow ground contours.
Operate the cutting unit at full engine speed. Adjust
the forward speed to suit the grass conditions and to
not overload the cutting unit. The lower the forward
speed, the better the quality of cut and after-cut
appearance.
Adjusting the Height of Cut
Note:
The height of cut is determined by the
rear roller and the front casters. Blade wear, tire
pressure, and bent/damaged caster arms can affect
the height-of-cut setting.
Figure 18
Some parts not shown for clarity.
1. Height of cut
2. Spacer
1.
Position the machine on a level surface, raise
the cutting unit and support it with jack stands,
shut off the engine, set the parking brake, and
remove the key from the ignition switch.
2.
Refer to the height-of-cut setting table on decal
134-3688
(Figure
settings.
3. Height-of-cut adjuster
plate
19) for common height-of-cut
1. Height-of-cut adjuster
plate mounting positions
3.
To make significant height-of-cut adjustments,
adjust the position of the height-of-cut adjuster
plate. Remove the nuts, spacers, and bolts
securing the plate
4.
Install the bolts in the locations specified in
Figure 19
the nuts to 60 N∙m (44 ft-lb).
g292389
1. Mounting hole "H"
2. Mounting hole "L"
3. Mounting hole "C"
4. Mounting hole "B"
5.
To make precision height-of-cut adjustments,
remove the height-of-cut caps from the front
caster shafts and adjust the amount of spacers
on either side of the caster shaft hub
Note:
Spacers placed above the caster shaft
hub decrease the height of cut, spacers placed
below the hub increase the height of cut.
6.
Install the height-of-cut tensioning caps.
13
Figure 19
2. Caster fork height-of-cut
spacers
(Figure
20).
for the desired height of cut; torque
Figure 20
5. Mounting hole "A"
6. Nut
7. Bolt
g292390
g319475
(Figure
19).
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