Simplicity GTH Series Operator's Manual page 12

Operation
| ITEM NAME
FUNCTION
H Throttle Lever Position from SLOW to FAST to adjust engine
speed.
B Hourmeter Shows number of hours engine has been operated.
C PTO Safety
Interlock
Lamp (Green)
Lights up when ignition switch is turned to ON
& PTO is disengaged. (PTO must be disengaged
to start engine.) With engine running, lamp will
be lit whenever ground speed control lever is in
neutral position.
D Trans. Safety
Interlock
Lamp (Green)
Lights up when ignition switch is turned to ON
position & ground speed control lever is in
NEUTRAL position. (Control lever must be in
NEUTRAL position to start engine.) With engine
running, lamp will be lit whenever PTO is
disengaged.
E Light Switch
Switches headlights on or off (when engine is running).
F Ignition Switch
Operates with key to start, run or stop the engine.
G Choke
Aids in starting a cold engine.
H Oil Pressure
Lamp (Red)
Lights up when ignition switch is turned
to START position. Should go out immediately
after engine is running, indicating sufficient
oil pressure. Shut off engine immediately
if light comes on during operation.
Check oil level.
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