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The Safety Interlock System
Caution
If safety interlock switches are disconnected or
damaged the machine could operate unexpectedly
causing personal injury.
Do not tamper with the interlock switches.
Check the operation of the interlock switches
daily and replace any damaged switches before
operating the machine.
Understanding the Safety Interlock
System
The safety interlock system is designed to prevent the
engine from starting unless:
The parking brake is engaged.
The PTO is disengaged.
The motion control levers are in the neutral locked
position.
The safety interlock system also is designed to stop the
engine when the traction controls are moved with the
parking brake on or if you rise from the seat when the PTO
is engaged.
Testing the Safety Interlock
System
Test the safety interlock system before you use the machine
each time. If the safety system does not operate as
described below, have an Authorized Service Dealer repair
the safety system immediately.
1. While sitting on the seat, engage the parking brake and
move the PTO to On. Try starting the engine; the engine
should not crank.
2. While sitting on the seat, engage the parking brake and
move the PTO to Off. Move either motion control lever
(forward or reverse). Try starting the engine; the engine
should not crank. Repeat with the other motion control
lever.
3. While sitting on the seat, engage the parking brake,
move the PTO to Off, and lock the motion control
levers in neutral. Start the engine. While the engine is
running, release the parking brake, engage the PTO, and
rise slightly from the seat; the engine should stop.
4. While sitting on the seat, engage the parking brake,
move the PTO to Off, and lock the motion control
levers in neutral. Start the engine. While the engine is
running, center the motion controls and move (forward
or reverse); the engine should stop.
Driving Forward or Backward
The throttle control regulates the engine speed as measured
in rpm (revolutions per minute). Place the throttle control in
the Fast position for best performance. Always operate in
the full throttle position.
Caution
The machine can spin very rapidly. The operator
may lose control of the machine and cause
personal injury or damage to the machine.
Use caution when making turns.
Slow the machine down before making sharp
turns.
Forward
1. Release the parking brake; refer to Releasing the
Parking Brake, page 14.
2. Move the levers to the center, unlocked position.
3. To go forward, slowly push the motion control levers
forward (Fig. 9).
Note: The engine will kill if the traction control levers are
moved with the parking brake engaged.
3
4
1. Motion control
lever—neutral lock
position
To go straight, apply equal pressure to both motion control
levers (Fig. 9).
To turn, release pressure on the motion control lever toward
the direction you want to turn (Fig. 9).
The farther you move the traction control levers in either
direction, the faster the machine will move in that direction.
To stop, pull the motion control levers to neutral.
16
2
1
m–2715
Figure 9
2. Center unlock position
3. Forward
4. Backward
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