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The Safety Interlock System
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 mower from starting unless:
• The blade control switch (PTO) is off.
• The speed control lever is in neutral.
The safety interlock system is designed to kill
the engine when:
• The Operator Presence Control (OPC) levers
are released with the mower engaged and/or
the speed control is out of neutral.
• The speed control lever is shifted out of neutral
without holding OPC levers or with the brake
engaged.
• The blade control switch (PTO) is pulled up
without holding the OPC levers.
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, have an Authorized Service
Dealer repair the safety system immediately.
While testing the safety interlock system,
the machine may move forward and cause
personal injury or property damage.
• Perform the safety interlock test in an
open area.
• Ensure no one is standing in front of
the machine while performing the safety
interlock test.
1. Set the neutral locks and place speed control
lever in neutral. Start the engine; refer to
Starting and Stopping the Engine.
2. Without holding the Operator Presence
Control (OPC) levers, pull the blade control
knob (PTO) up. The engine should kill.
3. With engine running, hold down the OPC
levers. Pull the blade control switch (PTO) up.
The drive belt should engage and the mower
blades begin rotating.
4. Release the OPC levers. The engine should kill.
5. With the engine running, move the speed
control lever forward. Release the OPC levers.
The engine should kill.
6. With the engine running, set the parking
brake and hold down the OPC levers. Move
the speed control lever forward. The engine
should kill.
7. If all the above conditions are not met have
an Authorized Service Dealer repair the safety
system immediately.
Driving the Machine
Forward and 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.
The forward speed of the machine can be increased
or decreased by moving the speed control lever
while the machine is in motion.
Driving Forward
1. Release the parking brake.
2. To go forward, move the speed control lever
to desired speed.
3. Release the neutral lock. Refer to Releasing the
Neutral Lock.
4. Slowly release the drive levers to move forward
(Figure 10).
To go straight, release drive levers equally
(Figure 10).
To turn, squeeze the drive lever on the side and
direction you want to turn (Figure 10).
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