Panel Gauges, Indicators And Controls; Key Switch; Normal Engine Shutdown; Starting - Komatsu 930E-2 Shop Manual

PANEL GAUGES, INDICATORS, AND CONTROLS (Figure 5-5)

KEY SWITCH

The key switch (1, Figure 5-5) is a three position (Off,
Run, Start) switch.

Starting

When the switch is rotated one position clockwise, it is
in the "Run" position and all electrical circuits (except
"Start") are activated.
1. With Selector Switch in "Neutral", rotate
keyswitch fully clockwise to "Start" position, and
hold this position until engine starts.
"Start" position is spring-loaded to return to "Run"
when key is released.
2. After engine has started, place REST switch in
"Off" position (de-activate the "REST" mode of
operation). Refer to discussion of REST SWITCH
(26, Figure 5-5).
Cold Weather Starting
Do not crank an electric starter for more than
30 seconds at a time.
Allow two minutes for cooling before attempting
to start engine again.
Severe damage to starter motor can result from
overheating.
N05044

Normal Engine Shutdown

1. Stop truck. Reduce engine RPM to low idle. Place
Selector Switch in "Neutral" and apply Parking
Brake switch.
2. Place REST switch in "On" position (put drive
system in "REST" mode of operation). Refer to
discussion of REST SWITCH (26, Figure 5-5).
3. Allow engine to cool gradually by running at low
idle for 3 to 5 minutes or use the Engine Shutdown
with Timer Delay as described on the following
page.
4. With truck stopped and engine cooled down, turn
keyswitch counterclockwise to "Off" for normal
shutdown of engine. If engine does not shutdown
with keyswitch, use Engine Shutdown Switch on
center console (see "Operator Controls" section)
and hold this switch down until engine stops.
5. With keyswitch "Off", and engine stopped, wait at
least 90 seconds. Insure steering circuit is com-
pletely bled down by turning steering wheel back
and forth several times. No front wheel movement
will occur when hydraulic pressure is relieved.
6. Verify all the LINK VOLTAGE lights turn off within
5 minutes after the engine is shut down. (One is
located in cab, behind the operator seat, two
others are located in the access panel at the left
front corner of the electrical cabinet.) If lights
remain on, refer to Section "E" for additional
instructions and information.
7. Close and lock all windows, remove key from
keyswitch and lock cab to prevent possible un-
authorized truck operation. Dismount truck prop-
erly.
NOTE: A ground level shutdown switch is located on
lower front left side of truck.
Operator Cab Controls N5-13