Perform
Safety Checks
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.
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 pedals, clutch/brake pedal, parking brake, throttle and choke cables, electric PTO clutch, headlight switch, steering, attachment lift, etc.
3.Stop the engine and check for fluid leaks: oil, gasoline, or transmission oil.
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.
Mower Blade Stopping Check
Mower blades and mower drive belt should come to a complete stop within five seconds after the electric clutch switch is turned off.
With the tractor in neutral, the electric clutch switch disengaged, and an operator in the seat, start the tractor engine. Run the engine at full throttle. Engage the electric PTO clutch switch and wait several seconds. Disengage electric clutch switch and check the time it takes for the mower drive belt to stop. If the mower drive belt does not stop within five seconds, adjust the PTO clutch according to the instructions in the Electric Clutch Adjustment section.
Seat Switch Connection
Check that the seat switch (A, Figure 4) is connected to the seat switch wire harness (B).
A
B
Figure 4. Seat Switch
A.Seat Switch
B.Wiring Harness
Safety Interlock System
Tests
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 system. Check the seat switch operation every fall and spring with the following tests.
Test 1 — Engine should NOT crank if:
•PTO switch is ON, OR
•Brake pedal is NOT fully depressed (parking brake OFF),
Test 2 — Engine SHOULD crank if:
•PTO switch is OFF, AND
•Brake pedal is fully depressed (parking brake ON)
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 (parking brake OFF).
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 seconds,
Test 5 — Reverse Mow Option (RMO) Check
•Engine should shut off if: PTO is engaged AND RMO is not activated AND reverse pedal is depressed.
•RMO light should illuminate if: RMO is engaged AND PTO switch is activated.
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 RMO Switch Adjustment. Under no circumstance should you attempt to defeat the purpose of the safety interlock system.
TP | 6 | 3/2007 |