Komatsu PC290LC-11 Operation & Maintenance Manual page 280

MACHINE OPERATIONS AND CONTROLS
2.
Turn the key clockwise, align the matching marks (1) of the
key groove and the cap, then open the cap.
Position (A): OPEN
Position (B): CLOSE (LOCK)
PROCEDURE FOR CLOSING CAP WITH LOCK
1.
Screw in the cap until it becomes tight, then insert the key into the key slot.
2.
Turn the starting switch key to CLOSE position (B), then remove the key.
METHOD FOR OPENING AND CLOSING COVER WITH LOCK
METHOD FOR OPENING COVER WITH LOCK
1.
Insert the key into the key slot.
2.
Turn the key counterclockwise and open the cover by pulling the cover handle.
Position (A): OPEN
Position (B): LOCK
METHOD FOR LOCKING COVER WITH LOCK
1.
Close the cover and insert the key into the key slot.
2.
Turn the starting switch key to CLOSE position (B), then remove the key.
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OPERATION