Hitachi DV 20VB - Manual (Page 11)

English
11
For keyless chuck (Fig. 3, 4)
(1) Mounting the bit
Turn the lock collar in the direction "UNLOCK" and open the chuck. After inserting the drill
bit into the chuck as far it will go, turn the lock collar in the "LOCK" direction. Grip the
retaining ring and close the chuck by turning the sleeve clockwise as viewed from the front.
(2) Dismounting the bit
Turn the lock collar in the direction "UNLOCK" to release the chucking force. Grip the
retaining ring and open the chuck by turning the sleeve counterclockwise.
NOTE
When the sleeve does not become loose any further, fix the side handle to retaining
ring, hold side handle firmly, then turn the sleeve to loosen by hand.
8. Fixing the side handle (Fig. 6)
Loosen the knob bolt on the side handle,
and attach the side handle to the gear
cover in a position convenient for drilling.
Match the projecting part of the handle to
the groove on the gear cover, and firmly
tighten the knob bolt. To remove the side
handle, loosen the knob bolt and rotate
the handle.
To attach a depth gauge on the side
handle, insert the gauge into the U-shaped
Depth
gauge
Side
handle
Chuck
wrench
Drill chuck
Knob bolt
Fig. 4
Sleeve
Side
handle
Retaining ring
Fig. 5
Fig. 6
Fig. 2 Fig. 3
Sleeve
Lock collar
Lock collar
Retaining
ring
U
CK
➤
UNLOCK
➤
LOCK