Console Switches And Controls - Komatsu 730E Operation & Maintenance Manual

OM3214
Operator Cab and Controls
Hoist Control Lever
Hoist control lever (3, Figure 32-7) is a four-position,
hand-operated lever located between the operator
seat and the center console.
Refer to Safety, Section 20, When Dumping, and
Section 30, Dumping, for complete details concern-
ing this control.

CONSOLE SWITCHES AND CONTROLS

Ashtray
Ashtray (4, Figure 32-7) is used for extinguishing and
depositing smoking materials. DO NOT use for flam-
mable materials, such as paper.
Ensure that all fire ash is extinguished!
Cigarette Lighter
Cigarette lighter (5, Figure 32-7) may be used for
lighting cigars/cigarettes.
Use caution with smoking materials!
This socket may also be used for a 12VDC power
supply.
Left-Hand Window Control Switch
Left-hand window control switch (6, Figure 32-7) is
spring-loaded to the OFF position. Pushing the front
of the switch raises the left side cab window. Pushing
the rear of the switch lowers the window.
Right-Hand Window Control Switch
Right-hand window control switch (7, Figure 32-7) is
spring-loaded to the OFF position. Pushing the front
of the switch raises the right side cab window. Push-
ing the rear of the switch lowers the window.
Engine Shutdown Switch
Engine shutdown switch (8, Figure 32-7) is
used to turn the engine off. Pull the switch
up to stop the engine. Push the switch
down to enable the engine to start.
SWITCH UP
ENGINE OFF
Use this switch to shut the engine off if the key switch
fails to operate, or to stop the engine without turning
off the 24VDC electrical circuits.
A ground level engine shutdown switch is also
located at the right, front corner of the truck.
SWITCH DOWN
ENGINE ON
Override Switch
Override switch
(9, Figure 32-7)
is spring-loaded
to the OFF posi-
tion. When
pushed inward
and held, this switch has several uses.
1. The override switch permits the operator to
move the truck forward when the selector
switch is in FORWARD, the dump body is
raised, and the brakes are released.
Only use the override switch in emergency situa-
tions.
2. If the operator stops the truck on an uphill
incline, the override switch can be used to set
up the forward propulsion while the brakes are
applied. As soon as the forward propulsion is
felt, release the brakes. As the truck begins to
move forward, release the override switch.
3. The override switch deactivates the retard
pedal function when the speed of the truck is
below 5 kph (3 mph).
4. The override switch is also used to reset an elec-
tric system fault when indicated by the red warn-
ing light. Refer to Overhead Warning/Status
Indicator Light Panel in this section.
Retard Speed Control (RSC) Switch
Retard speed control
switch (11, Figure 32-
7) turns the system off
or on. Push the knob
in to turn the system
off, and pull the knob
out to turn the system on.
.
Operation - Section 32
Page 32-7
IN OFF
OUT
ON