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LT-200 Series
TP 300-4517-00-RG-N 3/20076
Figure 4. Seat Switch
A. Seat Switch
B. Wiring Harness
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 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).
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.
A
B
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, re-adjust the PTO clutch
as described in the ADJUSTMENTS section or see your
dealer.
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.