Komatsu WA20-2, Operation & Maintenance Manual

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11. EXPLANATION OF COMPONENTS 11. EXPLANATION OF COMPONENTS
11.2 SWITCHES
1. STARTING SWITCH
This switch is used to start or stop the engine.
OFF position
The key can be inserted or withdrawn. The switches for the
electric system are all turned off and the engine is stopped.
ON position
Electric current flows in the charging and lamp circuits.
Keep the starting switch key at the ON position while the engine
is running.
START position
This is the engine-start position. Keep the key at this position
during cranking. Immediately after starting the engine, release the
key which will automatically return to the ON position.
HEAT (preheat) position
When starting the engine in winter, set the key to this position.
When the key is set to the HEAT position, the pre-heating monitor
lights up. Keep the key at this position until the monitor lamp goes
off. Immediately after the pre-heating monitor goes off, release the
key. The key automatically returns to the OFF position. Then, start
the engine by turning the key to the START position.
AM089390
HEAT
OFF
ON
START