The Safety Interlock System
If safety inter lock s witches ar e disconnected
or dama ged the machine could operate
unexpectedl y causing per sonal injur y .
• Do not tamper with the inter lock
s witches.
• Check the operation of the inter lock
s witches dail y and r eplace an y dama ged
s witches bef or e operating the machine.
Understanding the Safety Interlock
System
T he safety interloc k system is designed to prev ent
the mo w er from star ting unless:
• T he blade control switc h (PTO) is off .
• T he speed control lev er is in neutral.
T he safety interloc k system is designed to kill
the engine when:
• T he Operator Presence Control (OPC) lev ers
are released with the mo w er eng ag ed and/or
the speed control is out of neutral.
• T he speed control lev er is shifted out of neutral
without holding OPC lev ers or with the brak e
eng ag ed.
• T he blade control switc h (PTO) is pulled up
without holding the OPC lev ers .
Testing the Safety Interlock System
T est the safety interloc k system before y ou use the
mac hine eac h time . If the safety system does not
operate as described, ha v e an A uthorized Ser vice
Dealer re pair the safety system immediately .
W hile testing the safety inter lock system,
the machine may mo v e f orw ard and cause
per sonal injur y or pr oper ty dama ge.
• P erf or m the safety inter lock test in an
open ar ea.
• Ensur e no one is standing in fr ont of
the machine while perf or ming the safety
inter lock test.
1. Set the neutral loc ks and place speed control
lev er in neutral. Star t the engine; refer to
Star ting and Stopping the Engine .
2. Without holding the Operator Presence
Control (OPC) lev ers , pull the blade control
knob (PTO) up . T he engine should kill.
3. With engine r unning, hold do wn the OPC
lev ers . Pull the blade control switc h (PTO) up .
T he dri v e belt should eng ag e and the mo w er
blades begin rotating .
4. R elease the OPC lev ers . T he engine should kill.
5. With the engine r unning, mo v e the speed
control lev er forw ard. R elease the OPC lev ers .
T he engine should kill.
6. With the engine r unning, set the parking
brak e and hold do wn the OPC lev ers . Mo v e
the speed control lev er forw ard. T he engine
should kill.
7. If all the abo v e conditions are not met ha v e
an A uthorized Ser vice Dealer re pair the safety
system immediately .
Driving the Machine
Forward and Backward
T he throttle control regulates the engine speed as
measured in RPM (rev olutions per min ute). Place
the throttle control in the fast position for best
perfor mance .
T he forw ard speed of the mac hine can be increased
or decreased b y mo ving the speed control lev er
while the mac hine is in motion.
Driving Forward
1. R elease the parking brak e .
2. T o g o forw ard, mo v e the speed control lev er
to desired speed.
3. R elease the neutral loc k. R efer to R eleasing the
Neutral Loc k.
4. Slo wly release the dri v e lev ers to mo v e forw ard
( Figure 10 ).
T o g o straight, release dri v e lev ers equally
( Figure 10 ).
T o tur n, squeeze the dri v e lev er on the side and
direction y ou w ant to tur n ( Figure 10 ).
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