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Operating - 17
OPERATING
Testing Safety Systems
The safety systems installed on your machine should be checked before
each machine use. Be sure you have read the machine operator manual
and are completely familiar with the operation of the machine before
performing these safety system checks.
Use the following checkout procedures to check for normal operation of
machine.
If there is a malfunction during one of these procedures, do not operate
machine. See your authorized dealer for service.
Perform these tests in a clear open area. Keep bystanders away.
Testing Park Brake Switch
1. Park machine safely. (See Parking Safely in the SAFETY Section.)
2. Sit on seat.
3. Unlock the park brake.
4. Try to start engine.
Result: Engine must not start. If engine starts, there is a problem with
your safety interlock circuit.
Testing Park Brake
1. Park machine safely. (See Parking Safely in the SAFETY Section.)
2. Lock the park brake.
3. Put transmission in neutral. Engage bypass valve lever located at rear
of machine on units with an automatic transmission.
4. Try to push machine manually.
Result: Park brake must prevent machine from moving. If machine moves,
parking brake needs to be adjusted.
Testing Attachment Engagement Switch or Lever
1. Park machine safely. (See Parking Safely in the SAFETY Section.)
2. Sit on seat.
3. Lock the park brake.
4. Engage mower:
• On models with electric attachment engagement switch, pull switch
up.
• On models with mechanical attachment engagement lever, push lever
forward.
5. Try to start engine.
Result: Engine must not start. If engine starts, there is a problem with
your safety interlock circuit.
Testing Seat Switch
1. Park machine safely. (See Parking Safely in the SAFETY Section.)
2. First test:
a.Start engine.
b.Move throttle lever up to maximum engine speed.
c.Unlock park brake.
d.Engage mower.
e.Raise up off seat. Do not get off machine.
Result: Engine and mower blades should stop. If engine and mower
blades do not stop, there is a problem with your safety interlock circuit.
3. Second test:
a.Lock park brake.
b.Disengage mower.
c.Start engine.
d.Unlock park brake.
e.Raise up off seat. Do not get off machine.
Result: Engine should stop. If engine does not stop, there is a problem
with your safety interlock circuit.
4. Third test:
a.Disengage mower.
b.Start engine.
c.Lock park brake.
d.Raise up off seat. Do not get off machine.
Result: Engine should continue to run. If engine stops, there is a problem
with your safety interlock circuit.
Testing Reverse Implement Option (RIO)
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Start engine.
c CAUTION: Avoid injury! Engine exhaust fumes contain
carbon monoxide and can cause serious illness or death.
Do not run an engine in an enclosed area, such as a garage, even
with doors or windows opened.
Move the machine to an outside area before running the engine.
c CAUTION: Avoid injury! The mower blades should stop in
approximately five seconds when the mower or PTO is
disengaged.
If you believe that your blades may not be stopping in that period
of time, take your machine to your authorized dealer where they
can safely check and service your machine.