Komatsu HD785-5, Operation & Maintenance Manual

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OPERATION
OPERATION
STARTING IN COLD WEATHER
WARNING
Start the engine only after sitting down in the operator's seat.
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.
Check that there are no persons or obstacles in the surrounding area,
then sound the horn and start the engine.
Never use starting aid fluids as they may cause explosions.
Exhaust gas is toxic. When starting the engine in confined spaces, be
particularly careful to ensure good ventilation.
NOTICE
Do not keep the starting motor rotating continuously for more than 20 seconds.
If the engine will not start, wait for at least 2 minutes before trying to start the engine again.
1. Turn the key of starting switch (1) to the ON position.
2. The preheating will start automatically and the preheating pilot
lamp will light up.
The pre-heating times are as shown below.
Ambient temperature Preheating time
0
°
C to -5
°
C –
-5
°
C to -10
°
C 30 to 40 seconds
-10
°
C to -20
°
C 60 seconds
-20
°
C to -30
°
C 90 seconds
3. When the preheating is completed, the preheating pilot lamp
will go out. Turn the key in starting switch (1) to the START
position to start the engine.
REMARK
When starting the engine, the monitor may flash while the starting
motor is turning, but if the monitor lamp goes out after the engine
is started, there is no problem.
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