Hitachi DV 20VB2 Handling Instructions Manual page 4

Chuck wrench
Tighten
For keyless chuck
The country of use will determine whether Type A or
Type B keyless chuck is required.
Type A (Fig. 3)
(1) Mounting the bit
Turn the lock collar in the direction "AUF" and open
the chuck. After inserting the drill bit into the chuck
as far it will go, turn the lock collar in the "ZU"
direction. Grip the 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 "AUF" to release
the chucking force. Grip the ring and open the chuck
by turning the sleeve counterclockwise.
Sleeve Loosen
NOTE
When the sleeve does not become loose any further,
fix the side handle to ring, hold side handle firmly,
then turn the sleeve to loosen by hand. (Fig. 4)
Side handle
Type B (Fig. 5)
(1) Mounting the bit
Turn the sleeve counterclockwise and open the chuck.
After inserting the drill bit into the chuck as far it will
go, grip the ring and close the chuck by turning the
sleeve clockwise as viewed from the front.
(2) Dismounting the bit
Grip the ring and open the chuck by turning the
sleeve counterclockwise.
4
Drill chuck
Loosen
Fig. 2
Lock collar
Ring
Tighten
Fig. 3
Ring
Loosen
Sleeve
Fig. 4
Loosen
Tighten
NOTE
When the sleeve does not become loose any further,
fix the side handle to ring, hold side handle firmly,
then turn the sleeve to loosen by hand. (Fig. 4)
6. Check the rotational direction (Fig. 6)
The bit rotates clockwise (viewed from the rear side)
by pushing the R-side of the push button.
The L-side of the push button is pushed to turn the bit
counterclockwise.
(The L and R marks are provided on the body.)
CAUTION
Always use the impact drill with clockwise rotation,
when using it as an impact drill.
L mark
R mark
7. Fixing the side handle (Fig. 7)
Attach the side handle to the mounting part.
Rotate the side handle grip in a clockwise direction
to secure it.
Set the side handle to a position that is suited to the
operation and then securely tighten the side handle
grip.
Side handle
Loosen
To attach a depth gauge on the side handle, insert
the gauge into the U-shaped groove on the side
handle, adjust the position of the depth gauge in
accordance with the desired depth of the hole, and
firmly tighten the side handle grip. (Fig. 8)
Sleeve
Ring
Fig. 5
Push button
Switch trigger
Fig. 6
Tighten
Fig. 7