Komatsu ecot3 Operation And Maintenance Manual page 188

OPERATION
Operations Before Starting Engine
When starting the engine, check that the lock lever is securely at the LOCK position.
If the lock lever is not locked securely and the control levers or control pedal are touched when the engine is started, the machine
may move unexpectedly, and this may lead to serious personal injury.
1. Check that lock lever (1) is at the LOCK position (L).
2. Check that each control lever and control pedal is at the
Neutral position.
If the control levers and control pedal are not being touched,
they will be at the Neutral position.
3. Insert the key in starting switch (2), turn the key to ON position
(B), then carry out the following checks.
If a password has been set, the input display screen will be
displayed on the monitor screen.
After inputting the password, press Enter switch F6 (3).
REMARK
Contact your Komatsu distributor for details of the method of
setting, changing, or cancelling the password.
MACHINE OPERATIONS AND CONTROLS
WARNING
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