9
Features & Controls
Figure 7. Seat Switch
A. Switch B. Wiring Harness
WARNING
If the tractor does not pass the test, do not oper-
ate tractor. See your authorized dealer. Under no
circumstance should you attempt to defeat the
purpose of the safety system.
SAFETY INTERLOCK SYSTEM
Your tractor is equipped with a seat switch safety system
that will automatically shut the engine off when the oper-
ator leaves the seat with the transmission control lever in
gear or PTO engaged. Once the engine has stopped, the
electric PTO switch must be turned off after operator
returns to the seat in order to start the engine.
Check operation of dash safety lights. With operator in
seat and ignition switch turned to ON (engine not run-
ning):
A.Neutral Indicator Light (G, figure 3) should go on with
transmission lever in neutral gate and should go out
when lever is moved to either the forward or reverse
gate.
B.PTO Indicator Light (H, figure 3) should go on and off
with operation of PTO switch.
C.Oil Pressure Indicator Light (E, figure 3, if equipped)
should be on and should go out immediately after
engine starts.
D.Operator Seated Indicator Light (F, figure 3) should
go on when operator is present in the seat and
should go off as operator rises out of the seat.
Check the seat switch (A, figure 7) every fall and spring
with the following four tests:
Test 1 - Engine should NOT crank if:
A.seat is not occupied or
B.transmission lever out of neutral or
C.PTO switch engaged or
D.clutch/brake pedal not fully depressed.
Test 2 - Engine should crank if:
A.seat is occupied and
B.transmission lever is in neutral and
C.PTO switch is disengaged and
D.clutch/brake pedal is fully depressed.
Test 3 - Engine should shut off if:
A.operator rises off seat with transmission lever in
gear or
B.operator rises off seat with clutch/brake pedal not
depressed (parking brake on) or
C.operator rises off seat with PTO engaged.
NOTE: If operator returns to seat before engine stops,
the engine will re-start and electric PTO clutch will re-
engage.
Test 4 - PTO will disengage if:
A.operator rises off seat with engine running.
NOTE: If operator returns to seat before engine stops,
the engine will resume speed and electric PTO clutch will
re-engage.
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