IS3100Z Series - 4 Wheel IS - 61” & 72” Mower Deck
17
Perform
Safety Checks
Functional Tests
1. Check the tractor for loose bolts, screws, nuts, etc.
2. Start the engine and check all controls for proper
operation: ground speed control levers, parking
brake, throttle cable, electric PTO clutch, etc.
3. Stop the engine and check for fluid leaks: motor oil,
fuel, hydraulic oil, and antifreeze.
4. If any control fails to operate properly during testing
or seems to be out of adjustment, check and readjust
it according to the following Adjustments section.
WARNING
Disengage the PTO, stop the engine, set the parking
brake, and wait for moving parts to stop before
leaving operator's position for any reason.
If the tractor does not pass the test, do not
operate tractor. Under no circumstance should
you attempt to defeat the purpose of the safety
system.
SAFETY INTERLOCK
SYSTEM
This unit is equipped with safety interlock switches.
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
Test 1 — Engine should NOT crank if:
• PTO switch is engaged, OR
• Parking brake is not engaged, OR
• Motion control handles are not in the NEUTRAL
position, OR
• Operator is not on the seat.
Test 2 — Engine SHOULD crank if:
• PTO switch is NOT engaged, AND
• Parking brake is engaged, AND
• Motion control handles are locked in the NEUTRAL
position, AND
• Operator is on the seat.
Test 3 — Engine should SHUT OFF if:
• Operator rises off seat with PTO engaged, OR
• Operator rises off seat with parking brake
disengaged.
• Operator moves motion control handles inward
before disengaging parking brake.
Test 4 — Blade Brake Check
Mower blades and mower drive belt should come to a
complete stop within seven (7) seconds after electric
PTO switch is turned off (or operator rises off seat). If
mower drive belt does not stop within seven (7)
seconds, see the PTO Clutch Adjustment section.
NOTE: Once the engine has stopped, PTO switch must
be turned off, parking brake must be engaged, and the
motion control handles must be locked in the NEUTRAL
position 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.
