Starting Engine - Komatsu PC450-8 Operation & Maintenance Manual

MACHINE OPERATIONS AND CONTROLS

STARTING ENGINE

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Start the engine only after sitting down in the operator's seat.
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Do not attempt to start the engine by short-circuiting the engine starting circuit. Such an act may
cause a serious bodily injury or fire.
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Check that there are no persons or obstacles in the surrounding area, then sound the horn and start
the engine.
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Never use starting aid fluids as they may cause explosions.
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Exhaust gas is toxic. When starting the engine in confined spaces, be particularly careful to ensure
good ventilation.
NOTICE
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Before starting the engine, check that fuel control dial
(2) is at the low idling (MIN) position. If the fuel control
dial is at the full speed (MAX) position, the engine will
accelerate suddenly and cause damage to the engine
parts.
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Do not keep the key in starting switch (3) at the START
position continuously for more than 20 seconds.
If the engine does not start, wait for at least 2 minutes,
then start again from the beginning.
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After the engine starts, wait for the engine oil pressure
monitor to go out. Do not touch the control levers or
control pedal while the engine oil pressure monitor is
lighted up.
This machine is equipped with an engine automatic preheating device that functions to start the engine preheating
automatically.
If the ambient temperature is low, the preheating monitor will light up when the key in starting switch (3) is turned to
the ON position to inform the operator that preheating has been started automatically.
1. Check the lock lever (1) is in the LOCK position (L). If the
lock lever is in the FREE position (F), the engine does not
start.
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WARNING
OPERATION
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