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Performing Daily
Maintenance
Before starting the machine each day, perform the
Each Use/Daily procedures listed in
(page
28).
Breaking in a New Machine
New engines take time to develop full power. Mower
decks and drive systems have higher friction when
new, placing additional load on the engine. Allow
40 to 50 hours of break-in time for new machines to
develop full power and best performance.
Using the Safety-Interlock
System
WARNING
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.
Figure 7
Maintenance
Understanding the
Safety-Interlock System
The safety-interlock system is designed to prevent the
engine from starting unless:
•
The blade-control switch (PTO) is disengaged.
•
The motion-control levers are in the P
The safety-interlock system also is designed to shut
off the engine whenever the control levers are out of
the P
position and you rise from the seat.
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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.
Sit on the seat, move the motion-control levers
in the P
g293796
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switch to the O
engine; the engine should not crank.
2.
Sit on the seat and move the blade-control switch
to the O
FF
lever to the center, unlocked position. Try
starting the engine; the engine should not crank.
Repeat with the other motion-control lever.
3.
Sit on the seat, move the blade-control switch
to the O
FF
levers in the P
While the engine is running, engage the
blade-control switch, and rise slightly from the
seat; the engine should shut off.
4.
Sit on the seat, move the blade-control switch
to the O
FF
levers in the P
While the engine is running, move the
motion-control levers to the center, unlocked
position and rise slightly from the seat; the
engine should shut off.
14
position, and move the blade-control
position. Try starting the
N
position. Move either motion-control
position, and lock the motion-control
position. Start the engine.
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position, and lock the motion-control
position. Start the engine.
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position.
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