Komatsu PC30MR-5 Operation & Maintenance Manual page 127

OPERATION
ENGINE SHUTDOWN SECONDARY SWITCH
NOTICE
The engine shutdown secondary switch is used to stop the engine when the starting switch is turned to
OFF position but the engine does not stop.
• Use the engine shutdown secondary switch only in an emergency.
Ask for repair of the problem part as soon as possible.
• If the engine shutdown secondary switch is moved to "ENGINE STOP" position by mistake while
the machine is operating normally, "Engine Shutdown Secondary SW in Operation" is displayed on
the machine monitor.
If "Engine Shutdown Secondary SW in Operation" is displayed on the machine monitor, check that
the cover of engine shutdown secondary switch is closed and the switch is in "NORMAL" position.
If not, set it to "NORMAL" position.
1.
Raise cover (1) and open it.
2.
Turn the engine shutdown secondary switch to "ENGINE
STOP" position (a) and the engine stops.
(a) ENGINE STOP
When abnormal (switch is set to upper position)
(b) NORMAL
When normal (switch is set to lower position)
• When cover (1) is closed, the engine shutdown secondary switch automatically returns to "NORMAL"
position (b).
• When the starting switch is turned to ON position
while the engine shutdown secondary switch is in "EN-
GINE STOP" position (a), "Engine Shutdown Secon-
dary SW in Operation" is displayed on the machine
monitor.
If this screen is displayed, return the engine shutdown
secondary switch to "NORMAL" position (b).
WENAM00150
EXPLANATION OF COMPONENTS
3-61