Use and Care Manual

Operating - 19
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 crank. If engine cranks, there is a problem with
your safety interlock circuit.
Testing Park Brake
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Engage bypass valve control rods.
3. Lock the park brake.
4. Try to push machine manually.
Result: Park brake must prevent machine from moving. If machine moves,
parking brake needs to be adjusted.
Testing Mower Engagement (PTO) Switch
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Sit on seat.
3. Lock the park brake.
4. Engage the mower.
5. Try to start engine.
Result: Engine must not crank. If engine cranks, 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.Lock park brake.
b.Start engine.
c.Move throttle lever up to maximum engine speed.
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.Disengage mower.
b.Start engine.
c.Unlock park brake.
d.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.Lock park brake.
b.Disengage mower.
c.Start engine.
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 Motion Control Lever Switch
1. Park machine safely. (See Parking Safely in the SAFETY Section.)
2. Sit on seat.
3. First test:
a.With the park brake locked, start engine.
b.Move right motion control lever inward.
Result: Engine should stop. If engine does not stop, there is a problem
with your safety interlock circuit.
4. Second test:
a.Start engine.
b.Release park brake.
c.Move right motion control lever inward.
Result: Engine should continue to run. If engine stops, there is a problem
with your safety interlock circuit.
5. Repeat first and second test using left motion control lever.
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.