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Note: The engine will not start if the blades (PTO)
are engaged.
5. When starting a cold engine, pull out the choke
knob (Figure 9).
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G017871
1. Throttle control lever
Note: To start a warm engine, push in the choke
knob.
6. Turn the ignition key clockwise and hold it in the
Start position (Figure 9).
Note: When the engine starts, release the key.
Important: If the engine does not start after
15 seconds of continuous cranking, turn the
ignition key to Off and let the starter motor cool
for 2 minutes; refer to Troubleshooting.
7. After the engine starts, slowly shift the throttle
control lever to the Fast position (Figure 9).
Stopping the Engine
1. Move the throttle control lever to the Slow position
(Figure 9).
Note: If the engine backfires, shift the throttle
control lever to the Fast position before stopping
the engine.
2. Turn the ignition key to the Off position (Figure 9).
Note: If the engine has been working hard or
is hot, let it idle for a minute before turning the
ignition key to the Off position. This allows the
engine to cool the engine before you stop it. You
may stop the engine in an emergency by turning the
ignition key to the Off position.
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Figure 9
2. Choke knob
Using the Safety Interlock
System
Service Interval: Before each use or daily
CAUTION
If the 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.
• Replace switches every 2 years regardless of
whether they are operating properly or not.
Understanding the Safety Interlock
System
The safety interlock system is designed to prevent the
engine from starting unless:
• You are sitting on the seat.
• The brake pedal is depressed.
• The blade control (PTO) knob is in the Disengaged
position.
• The traction control pedal is in the Neutral position.
The safety interlock system stops the engine if you rise
from the seat and the traction control pedal is not in
the Neutral position, the parking brake is not set, or the
blade control (PTO) knob is in the Engaged position.
The safety interlock system is designed to stop the
mower if:
• You shift into Reverse with the blades (PTO)
engaged.
• You remove the bag or dump the grass.
Setting the KeyChoice
Operate in Reverse
The interlock feature on the machine prevents the
power take-off (PTO) from operating when you back
up the machine. If you operate the machine in reverse
with the blades (PTO) engaged (i.e., with the mower
blades or other attachment running), the engine will
stop. Do not mow in reverse unless it is absolutely
necessary.
If you need to use the blades (PTO) while backing
up, turn off the interlock feature using the KeyChoice
switch located near the seat bracket (Figure 10).
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