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3 Maintenance
Perform Safety Checks
SAFETY
INTERLOCK SYSTEM
This unit is equipped with safety interlock switches
and other safety devices. These safety systems are
present for your safety, do not attempt to bypass
safety switches, and never tamper with safety
devices. Check their operation regularly.
Operational SAFETY Checks
Your unit is equipped with a seat switch safety sys-
tem. Check the seat switch operation every fall and
spring with the following tests.
Test 1 — Engine should NOT crank if:
• PTO switch is engaged, OR
• Brake pedal is not fully depressed (or parking
brake is not engaged), OR
• There is no operator in the seat.
Test 2 — Engine SHOULD crank if:
• PTO switch is NOT engaged, AND
• Brake pedal is fully depressed (or parking brake
is engaged), AND
• An operator is sitting in the seat.
Test 3 — Engine should SHUT OFF if:
• Operator rises off seat with PTO engaged, OR
• Operator rises off seat with brake pedal NOT
fully depressed (or parking brake disengaged).
Test 4 — Blade Brake Check
Mower blades and mower drive belt should come to
a complete stop within five seconds after electric
PTO switch is turned off (or operator rises off seat).
If mower drive belt does not stop within five sec-
onds, see your dealer.
NOTE: Once the engine has stopped, the PTO
switch must be turned off after the operator returns
to the seat in order to start the engine.
WARNING
If the unit does not pass a safety test, do not
operate it. See your authorized dealer. Under
no circumstance should you attempt to
defeat the purpose of the safety interlock
system.
Blade Brake Check
Mower blades and mower drive belt should come to a
complete stop within five seconds after electric PTO
switch is turned off.
1. With tractor in neutral, PTO disengaged and operator
in seat, start the engine.
2. Look over the left-hand footrest at the mower drive
belt. Engage the PTO and wait several seconds.
Disengage the PTO and check the amount of time it
takes for the mower drive belt to stop.
3. If mower drive belt does not stop within five seconds,
see your dealer.
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