Komatsu PC138US-11 Operation & Maintenance Manual page 156

EXPLANATION OF COMPONENTS
(13) Breaker switch
(14) Horn switch
(15) Room lamp switch
(16) Pump secondary drive switch
STARTING SWITCH
Starting switch is used to start or stop the engine.
: OFF position
(A)
The key can be inserted or withdrawn. Switches for the electri-
cal system (except room lamp) are all turned off, and the en-
gine is stopped.
: ON position
(B)
Electric current flows through the charging and lamp circuits.
Keep the starting switch key at this position while the engine is
running.
: START position
(C)
This is the position to start the engine. Keep the key at this position during cranking.
The key will return to ON position (B).
: HEAT (preheating) position
(D)
When starting in cold weather, turn the key to this position.
When the key is turned to HEAT (preheating) position (D), the preheating pilot lamp lights up. Keep the key at
this position until the preheating pilot lamp flashes. Release the key immediately after the preheating pilot lamp
flashes. When you release the key, it returns to OFF position (A). Start the engine immediately by turning the
key to START position (C).
REMARK
If the lock lever is not at LOCK position (L), the engine does not
start.
Check that the lock lever is at LOCK position (L) when operat-
ing the starting switch.
FUEL CONTROL DIAL
Fuel control dial is used to control the engine speed and out-
put.
(a) Low idle (MIN)
The position where turning the dial fully to the left.
(b) High idle (MAX)
The position where turning the dial fully to the right.
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(17) Swing parking brake cancel switch
(18) Lock lever automatic lock cancel switch
(19) Cigarette lighter
(20) Engine shutdown secondary switch
WENAM00111
OPERATION