Komatsu 830E Shop Manual page 695

HOIST CONTROL
The hoist control lever (3) is a three position hand
operated device located to the right of the operator
seat. (Refer to Figure 5-6)
To Raise dump body:
1. Pull the lever to the rear to actuate hoist circuit.
(Releasing the lever anywhere during "hoist up"
will place the body in "hold" at that position.)
2. Raise engine RPM to increase hoist speed.
3. Reduce engine RPM as last stage of hoist cylin-
der begins to extend and let engine go to low
idle as last stage reaches half-extension.
4. Release hoist lever as last stage reaches full
extension.
To lower body:
Move hoist lever forward to "down" position and
release. Releasing the lever places hoist control
valve in the "float" position allowing the body to
return to frame.
FIGURE 5-6. HOIST CONTROL LEVER
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ASH TRAY
The ash tray (4, Figure53-5) is used for extinguishing
and depositing smoking materials. DO NOT use for
flammable materials, such as paper wrappers. Be
certain that all fire ash is extinguished!
LIGHTER
The lighter (5, Figure 5-5) may be used for lighting ci-
gars/cigarettes. Always use CAUTION with smok-
ing materials!.
This socket may also be used for a 12 VDC power
supply.
WINDOW SWITCHES
The window switches (6 & 7, Figure 5-5) are 3-posi-
tion switches. The center position is OFF, pressing
the front of the switch raises the window, pressing
the rear of the switch lowers the window.
ENGINE SHUTDOWN SWITCH
for some reason the key switch does not shut down
the engine or to shut down the engine without turning
off the 24 VDC electrical circuits as is sometimes
necessary during troubleshooting operations.
In addition, a ground level shutdown switch is located
near the right access ladder.
Operator Controls
The engine shutdown switch
(8, Figure 5-5) provides an
alternate method of shutting
down the engine. (Normally
the key switch is turned OFF
to shutdown the engine.)
The switch may be used, if
N5-7