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Operating - 15
OPERATING
Testing Safety Systems
Use the following checkout procedure to check for normal
operation of machine.
If there is a malfunction during one of these procedures, Do
not operate machine. See your John Deere 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.
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3. Unlock the park brake (A).
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.)
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2. Lock the park brake (A).
3. Put transmission in neutral. Engage free-wheeling lever
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 PTO Switch
1. Park machine safely. (See Parking Safely in the
SAFETY Section.)
2. Sit on seat.
c CAUTION: Avoid injury! Engine exhaust fumes
contain carbon monoxide and can cause
serious illness or death.
Move the vehicle to an outside area before
running the engine.
Do not run an engine in an enclosed area
without adequate ventilation.
• Connect a pipe extension to the engine
exhaust pipe to direct the exhaust fumes out of
the area.
• Allow fresh outside air into the work area to
clear the exhaust fumes out.
A
A