Komatsu WA380-6 Operation & Maintenance Manual page 177

OPERATION OPERATION
2. If the preheating pilot lamp (2) does not light up, or it lights up
and then goes out to inform that the engine preheating has
been completed, turn the key in starting switch (1) to the
START position (C).
3. The starting motor will continue to turn and the engine will start.
Keep the key in starting switch (1) at the START position (C) to keep the starting motor running until the engine
starts.
REMARK
In low temperatures, to ensure lubrication of the engine and to improve the durability, no fuel is supplied to the
engine for 3 seconds after the key in starting switch (1) is turned to the START position (C), so the engine will not
start during this time.
Therefore, keep the key in starting switch (1) at the START position (C) to keep the starting motor running until the
engine starts.
4. After the engine starts, release the key in starting switch (1).
The key will automatically return to the ON position (B).
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OPERATION OPERATION