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Adjusting the Center Cutting
Unit Height-of-Cut Correction
With all cutting units set at the same HOC via the indicator
rings, you may notice that the center unit produces a higher
cut finish compared to the wing units. The center unit is
pulled and the wing units are pushed; this presents marginally
different cutting angles relative to the ground. The amount of
HOC variation which results from this is influenced by the
terrain, but you can achieve satisfactory results by setting the
center cutting unit HOC indicator ring lower than the wing
unit settings.
Controlling the Position of the
Individual Cutting Units
You can raise or lower the cutting units independently using
the bank of 3 lift control switches.
1. To lower the cutting units, operate the lift control
switches in a downward direction and release.
Note: The cutting unit drive switch must be on
(forward) to do this. The reel drive engages when the
cutting units are approximately 150 mm (6 inches)
above ground level. The cutting units are now in float
mode and will follow the ground contours.
2. To raise the cutting units, operate the lift control
switches in an upward direction and hold in position
3. If the cutting unit drive switch is in the O
the reel drive will disengage immediately.
3. Release the lift control switches when the cutting units
are at the required height.
Note: The control switches automatically return to
position 2 (neutral) and the arms are hydraulically
locked into position.
Adjusting the Cutting Unit
Auto Limited Lift
To activate the lift, press the Auto Limited Lift switch to the
O
position
(Figure
31).
N
To deactivate the lift, press the Auto Limited Lift switch to
the O
position
(Figure
FF
Manual limited lift using the 3 lift control switches is always
available regardless of the position of the Auto switch.
N
31).
To raise the cutting units to the limited lift position:
momentarily operate the switches in an upward direction.
The reel drive disengages immediately and the cutting units
stop rising, approximately 150 mm (6 inches) above ground
level. This operates with the cutting units lowered and
position
rotating.
Auto limited lift in reverse causes the cutting units to rise
automatically to the limited lift position when reversing. They
return to the floating position when returning to forward
travel. The cutting units continue to rotate during this
operation.
Engaging the Cutting Unit
Drive
1. Forward
2. Off
26
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Figure 31
1
2
3
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Figure 32
3. Reverse
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