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remove a longer plug. Tap the top of the switch
to raise the tine depth to remove a shorter plug.
Note:
The ideal plug depth is 6.4 to 7.6 cm (2.5 to
3 inches). Adjust the controls to adapt to the soil
conditions.
Locking/Unlocking the Tine
Depth Setting
The settings can be locked or left unlocked.
•
To lock the setting, Turn the ignition key from the
O
to the O
position 5 times. The LED status
FF
N
light illuminates in the tine engagement display
(reference
Figure
21).
•
To unlock the setting, press and hold the bottom
of the switch for 1 second. The LED status light
turns off.
Switch the key to the O
are finished.
Adjusting the Operator
Weight Control Valve
Note:
Adjust the system pressure so that the drive
tires lightly touch the ground.
Important:
Keep the drive tires on the ground at
all times to maximize lateral machine stability.
1.
Raise the tines, drive the aerator to a hard, flat
turf surface, and stop the aerator, but leave the
engine running.
2.
Stand on the operator's platform.
3.
Press the tine ground engagement foot switch
to lower the tines.
•
If the machine raises and the ground tires
are no longer touching, rotate the knob
for the operator weight adjustment control
counterclockwise
machine until the tires touch the ground.
•
If the tines are not touching the ground,
rotate the knob control clockwise until the
tines lower and touch the ground (but not
raise the machine).
or S
position when you
FF
TART
(Figure
25) to lower the
1. Knob (operator weight adjustment control)
Important:
ground at all times to maximize lateral
machine stability.
4.
Release the tine ground engagement foot switch
to raise the tines.
5.
While holding the position of the knob for the
weight control valve, tighten the jam nut.
Note:
If you are having difficulty maintain the
valve adjustment while tightening the jam nut,
use a hex key in the shaft of the weight control
valve.
Raising the Tines
1.
Remove your foot from the tine ground
engagement foot switch
2.
Turn the ignition key from the O
O
position.
FF
Important:
The tines are rotating when the
motion-control lever is moved out of the neutral
position.
Shutting Off the Engine
1.
Move the motion-control levers back to the
neutral position and bring the machine to a full
stop.
2.
Lift your foot off of the tine ground engagement
foot switch to raise the tines.
3.
Press and hold the multi-function switch 1
second lockout the tine ground engagement foot
switch.
4.
Place the throttle midway between the S
and F
positions.
AST
5.
Allow the engine to run for a minimum of 15
seconds, then turn the ignition switch to the O
position to shut off the engine.
23
Figure 25
Keep the drive tires on the
position to the
N
g249872
LOW
FF
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