Simplicity SunStar 1692521 - Safety Interlock System.7

Features & Controls
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 ground speed control lever
in gear or with the 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 2) should go on with
ground speed control lever in neutral gate and should
go out when lever is moved to either the forward or
reverse gate.
B. Front PTO Indicator Light (K, figure 2) should go on
and off with operation of PTO switch.
C. Oil Pressure Indicator Light (F, figure 2) should be on
and should go out immediately after engine starts.
D. Operator Seated Indicator Light (L, figure 2) 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 3) every fall and spring
with the following four tests:
Test 1 - Engine should NOT crank if:
A. seat is not occupied or
B. ground speed control lever out of neutral or
C. PTO switch engaged.
Test 2 - Engine should crank if:
A. seat is occupied and
B. ground speed control lever is in neutral and
C. PTO switch is disengaged.
A. Switch B. Wiring Harness
Test 3 - Engine should shut off if:
A. operator rises off seat with ground speed control
lever in gear.
B. operator rised off seat with PTO engaged.
NOTE: If operator returns to seat before engine stops,
the engine will re-start and 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 re-start and PTO clutch will re-engage.
^WARNING
If the tractor does, not pass the test, do not oper¬
ate tractor. See your authorized dealer. Under no
circumstances should you attempt to defeat the
purpose of the safety system.
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