Using a file, carefully remove the burr without
dulling the cutting edge.
12.
Repeat the procedure for all cutting units to be
backlapped.
When you are finished with the backlap
operation, return the backlap knobs to the
forward flow position, lower the seat, and wash
all lapping compound off the cutting units. Adjust
the reel-to-bedknife contact as needed.
Note:
If you do not return the backlap knobs to
the forward flow position after backlapping, the
cutting units will not raise or function properly.
Adjusting the Cutting Unit
Lowering Rate
The machine is set up at the factory for most fairway
mowing applications.
The following adjustments are available for fine-tuning
of the machine to the application:
The cutting unit lift circuits are equipped with
adjustable valves to ensure that the cutting units lower
at the desired rate. Adjust them as follows:
1.
Run the machine until it warms up to operating
temperature.
2.
Locate the valves, on the lift manifold, for
adjusting the desired cutting unit(s); refer to the
chart and
Valve
Cutting Unit Affected
FC1
#1 (front center)
FC4
#4 and #5 (front wings)
FC5
#2 and #3 (rear)
FC6
#6 (rear left)
FC7
#7 (rear right)
g007909
Figure 79
1.
Adjustment valve for #1
(front center) cutting unit
4.
Adjustment valve for #6
(rear left) cutting unit
2.
Adjustment valve for
#4 and #5 (front wings)
cutting units
5.
Adjustment valve for #7
(rear right) cutting unit
3.
Adjustment valves for #2
and #3 (rear) cutting units
3.
Loosen the locking nuts on the valves.
4.
Using a hex key, rotate the appropriate valve
clockwise to slow down the drop rate of the
cutting units.
5.
Verify the lift rate adjustment by raising and
lowering cutting units several times. Adjust it as
required.
6.
Tighten the locking nut to secure the adjustment.
Adjusting the Lifted Height
of the Outer Front Cutting
Units (Enable Position)
You can increase the turnaround height of the front
outer cutting units (#4 and #5) and rear cutting units
(#6 and #7) to provide additional ground clearance on
contoured fairways.
Note:
The RM CONFIG time delay should not be
changed from the original setting of 0 when using this
method to adjust the turnaround height.
To increase/adjust the turn around height of the cutting
units proceed as follows:
1.
Park the machine on a level surface, lower the
cutting units, shut off the engine, engage the
parking brake, and remove the key.
2.
Loosen the carriage bolt nut securing the lift arm
switch bracket to the #4, 6, or 7 lift arms (
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