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toward you to the most comfortable position and then
release the pedal.
Speed Limiter Screws
Adjust the screw(s) (Figure 9) to limit the amount the
traction pedal can be depressed in the forward or reverse
direction to limit speed.
Important: The speed limiter screw must stop the
traction pedal before the pump reaches full stroke
or damage to the pump may occur.
1. Forward speed limiter
screw
Diagnostic Light
The diagnostic light (Figure 10) will illuminate should a
system fault be recognized.
Engine Coolant Temperature Gauge
During normal operating conditions the gauge
(Figure 10) should be in the green range. Check the
cooling system if the gauge goes to the yellow or red
range.
Engine Oil Pressure Warning Light
The light (Figure 10) illuminates when the engine oil
pressure is dangerously low.
Charge Indicator
The charge indicator (Figure 10) illuminates when the
system charging circuit malfunctions.
Key Switch
The key switch (Figure 10) has three positions: Off,
On/Preheat, and Start.
PTO Switch
The PTO switch (Figure 10) has two positions: Out
(start) and In (stop). Pull the PTO button out to engage
Figure 9
2. Reverse speed limiter
screw
the cutting unit blades. Push in the button to disengage
the cutting unit blades.
Hi-Lo Speed Control
The switch (Figure 10) allows the speed range to increase
for transport of the machine. Cutting decks will not
operate in high range. Also, the decks cannot be lowered
from the transport position when the switch is in the
high range.
1. Diagnostic light
2. Engine coolant
temperature gauge
3. Engine oil pressure
warning light
4. Charge indicator
5. Key switch
6. PTO switch
7. Hi-Lo speed control
Lift Switches
The lift switches (Figure 10) raise and lower the cutting
units. Press the switches forward to lower the cutting
units and backward to raise the cutting units. When
starting the machine, with the cutting units in the down
position, press the lift switch down to allow the cutting
units to float and mow.
16
Figure 10
8. Lift switches (GM 4700
only)
9. Lift switch (GM 4500 and
4700)
10. Throttle control
11. Light switch
12. Glow plug indicator light
13. Engine coolant
temperature warning
light
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