Komatsu PC45MR-30403, Operation And Maintenance Manual

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STARTING SWITCH
Starting switch is used to start or stop the engine.
(A) OFF position
The electrical current to the electrical system is cut, and the en-
gine stops.
The key can be inserted into or removed from the starting
switch.
(B) ON position
Electric current flows through the charging circuit and lamp cir-
cuit.
Keep the starting switch key at ON position (B) while the engine is running.
This machine is equipped with an engine automatic preheating device that functions to start the engine preheat-
ing automatically.
When the key in starting switch is turned to ON position (B) at low ambient temperature, the automatic preheat-
ing starts and the preheating pilot lamp lights up.
(C) START position
This is the position to start the engine.
Keep the key at START position (C) during cranking. Release your hand off the key immediately after the engine
has been started.
The key in starting switch automatically returns to ON position (B).
REMARK
• At starting of the engine, battery voltage may drop abruptly depending on the ambient temperature or bat-
tery condition, and the machine monitor may restart, but it is not a trouble.
• 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 op-
erating 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 the dial is turned fully to the left.
(b) High idle (MAX)
The position where the dial is turned fully to the right.
OPERATION EXPLANATION OF COMPONENTS
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