21
Understanding the Safety Interlock
System
The safety interlock system is designed to
prevent the engine from starting unless:
•
The blades are disengaged.
•
The motion control levers are in the
neutral position.
•
The parking brake is engaged.
The safety interlock system is designed to
initiate engine shutdown when:
•
The parking brake is disengaged and the
operator gets of f m achine.
•
The PTO is engaged and the operator
gets off machine.
•
The parking brak e is disenga ged and
levers are in and the operator gets off
machine.
•
The parking brake is engaged and motion
control levers are in.
Testing the Safety Interlock System
Test the safety interlock system before you
use the machine each time.
1. Check starting circuit. Starter
should
crank
with parking brake
engaged
, PTO
disengaged
and motion control levers
moved out in the
neutral lock
position. The
operator does not need to be in the seat to
start the engine.
2. Try to start with
operator in seat
, parking
brake
disengaged,
PTO
disengaged
and
motion control levers in the
neutral lock
position - starter
must not crank
.
3. Try to start with
operator in seat
, parking
brake
engaged,
PTO
engaged
and motion
control levers in the
neutral lock
position -
starter
must not crank
.
4. Try to start with
operator in seat
, parking
brake
engaged,
PTO
disengaged, and the
left motion control lever in,
starte r
must
not crank,
repeat again with the
right lever
in
, then with
both levers in
- starter
must
not crank.
5. Check kill circuits. Run engine at one-third
throttle,
disengage
parking brake and
raise
off
of seat (but do not get off of machine)
engine
must initiate shutdown.
6. Run engine at one-third throttle,
engage
PTO
and
raise off
of seat (but do not get off
of machine) engine
must initia te
shutdown.
7. Run engine at one-third throttle, with brake
disengaged, move levers in and raise off
seat (but do not get off of machine) engine
must initiate shutdown.
8. Again, run engine at one-third throttle, brake
engaged,
and move
left motion control
lever in
- engine
must init iate shutdown.
9. Repeat again moving the
right lever in
,
then moving
both levers in
- engine
must
initiate shutdown
whether operator is
on
seat or not
.
NOTE: If machine
does not
pass any
of these tests, do not operate. Contact
your authorized EXMARK SERVICE
DEALER.
IMPORTANT: It is essential that
operator safety mechanisms be
connected and in proper operating
condition prior to use for mowing.
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 perform ance. Always
operate in the Fast (full throttle) position.
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.
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