Key Switch; Engine Shutdown Switch With Timer Delay; Fog Light Switch; Ladder Light Switch - Komatsu 730E Operation & Maintenance Manual

OM3241
Operator Cab and Controls

Key Switch

Key switch (1, Figure 32-10) is a three-position (OFF,
RUN, START) switch. When the switch is rotated one
position clockwise, it is in the RUN position and all
electrical circuits (except start) are activated.
With the selector switch in neutral, rotate the key
switch fully clockwise to the START position, and hold
this position until the engine starts. The START posi-
tion is spring-loaded to return to RUN when the key is
released. With the truck stopped, turn the key switch
counterclockwise to OFF for normal engine shutdown.
Use the engine shutdown switch on the center console
if the engine does not shut off with the key switch.
NOTE: A ground level shutdown switch is located on
the lower, front left side of the truck.

Engine Shutdown Switch With Timer Delay

Engine shutdown switch with timer delay (2, Figure
32-10) is a three-position, rocker-type switch (OFF,
ON, MOMENTARY). Refer to Section 30, Operating
Instructions - Delayed Engine Shutdown Procedure.

Fog Light Switch

Fog light switch (3, Figure 32-10)
is used by pressing the top of the
rocker switch to turn the lights
on. Pressing the bottom of the
switch turns the lights off. The fog
lights are optional.

Ladder Light Switch

Ladder light switch (4, Figure 32-
10) turns the ladder lights on and
off. Pressing the top of the rocker
switch turns the lights on. Press-
ing the bottom of the switch turns
the lights off. Another switch is
mounted at the front left of the
truck near the base of the ladder.

Backup Light Switch

Backup light switch (5, Figure
32-10) allows the backup lights
to be turned ON providing
added visibility and safety when
the selector switch (see operator
controls) is not in the REV posi-
tion. When the switch is pressed toward the ON posi-
tion, manual backup light indicator (B4, overhead
panel) will be illuminated.

Panel Illumination Lights

Panel illumination lights (6, Figure 32-10) provide illu-
mination for the instrument panel. Brightness is con-
trolled by panel illumination lights dimmer rheostat
(28).
Operation - Section 32
Page 32-13