Hitachi DS 14DJL Handling Instructions Manual page 32

English
When using the driver drill with a machine screw at HIGH (high speed), a screw
○
may damage or a bit may loose due to the tightening torque is too strong. Use the
driver drill at LOW (low speed) when using a machine screw.
NOTE
The use of the battery in a cold condition (below
0 degree Centigrade) can sometimes result in the
weakened tightening torque and reduced amount of
work. This, however, is a temporary phenomenon,
and returns to normal when the battery warms up.
6. Using the light
Pull the trigger switch to light up the light. The light
keeps on lighting while the trigger switch is being
pulled. The light goes out after releasing the trigger
switch. (Fig. 9)
(The light automatically goes out 10 seconds after releasing the trigger switch.)
CAUTION
Do not expose directly your eye to the light by looking into the light.
If your eye is continuously exposed to the light, your eye will be hurt.
7. Mounting and dismounting of the bit
(1) Mounting the bit
Loosen the sleeve by turning it toward the left (in
the counterclockwise direction as viewed from the
front) to open the clip on the keyless chuck. After
inserting a driver bit, etc., into the keyless drill
chuck, and tighten the sleeve by turning it toward
the right (in the clockwise direction as viewed from
the front). (See Fig. 10)
If the sleeve becomes loose during operation,
○
tighten it further.
The tightening force becomes stronger when the sleeve is tightened additionally.
(2) Dismounting the bit
Loosen the sleeve by turning it toward the left (in the counterclockwise direction as viewed
from the front), and then take out the bit etc. (See Fig. 10)
NOTE
If the sleeve is tightened in a state where the clip of the keyless chuck is opened to a
maximum limit, a click noise may occur. This is the noise that occurs when the loosening of
the keyless chuck is prevented and is not a malfunction.
CAUTION
When it is no longer possible to loosen the sleeve, use a vise or similar instrument
to secure the bit. Set the clutch mode between 1 and 11 and then turn the sleeve
to the loose side (left side) while operating the clutch. It should be easy now to
loosen the sleeve.
Loosen
Tighten
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Trigger
switch
Fig. 9
Sleeve
Fig. 10