TM 5-3805-262-10
2-1. INSTRUMENT PANELS (CONT)
a. Right Instrument Panel (Cont).
(2) Engine Switches.
IGNITION KEY SWITCH
Four position key switch.
First unmarked position (key turned counterclockwise): Applies power to:
vehicle lights switch enabling lights to be turned on; auxiliary steer-
ing control circuit; low air pressure warning circuit sounding warning
buzzer; gages; and left instrument panel warning indicators turning them
on; and electric fuel pump.
Off position (key straight): Electrical system off.
On position (key turned to first clockwise position): Applies power to:
vehicle lights switch enabling lights to be turned on; auxiliary steer-
ing control circuit; low air pressure warning circuit sounding warning
buzzer; gages; left instrument panel warning indicators turning them on;
electric fuel pump; and return-to-dig and bucket height control cir-
cuits.
Start position (key turned to extreme clockwise position, spring loaded
return): Applies power to return-to-dig and bucket height control cir-
cuits; cranks starter motor to start engine, momentarily turns on HY-
DRAULIC FILTER warning indicator, and applies power to COLD START
switch.
COLD START SWITCH
Aids in starting engine when temper-
ature is 40 degrees or less.
Starting fluid is toxic and
highly flammable. Use caution
when handling.
Pushbutton switch: Operates only
when ignition key switch is cranking
starter. Pressing switch energizes
solenoid valve installed on cold
start container allowing starting
fluid to enter intake manifold.
2-3
