Komatsu D31EX-21, Operation & Maintenance Manual, Page: 96 / 256

EXPLANATION OF COMPONENTS
OPERATION
3-44
CAP, COVER WITH LOCK 3
Use the starting switch key to open and close the caps and
covers.
For their locations , see “LOCKING (3-99)“.
Insert the key as far as it will go to the shoulder. If the key is
turned before it is inserted all the way, it may break.
METHOD OF OPENING AND CLOSING CAP WITH LOCK 3
TO OPEN THE CAP
1. Insert the key into the key slot.
2. Turn the key in the OPEN direction, align the key slot with
the counter mark on the cap, then open the cap.
TO LOCK THE CAP
1. Turn the cap until tight, then insert the key into the key slot.
2. Turn the key in the LOCK direction and take out the key.
Shoulder
Match mark
LOCK
OPEN
Match mark
on the cap
OPEN
LOCK