Hitachi DV14DMR - Manual (Page 23)

English
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(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. 19)
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 mounting a bit into the keyless chuck, tighten firmly. If the sleeve is not tight,
the bit may slip or fall out, causing injury.
NOTE: Loosening stuck or hard to move sleeves.
Grasp the bit installed in the keyless chuck, in a vise or similar tool.
Set the cap position to “1-7” and turn the switch on. The motor then starts.
Finally, rotate the sleeve to the left, and it will loosen.
5. Automatic spindle-lock mechanism
This unit has automatic spindle-lock mechanism for quick bit changes.
6. Confirm that the battery is mounted correctly
7. Check the rotational direction
The bit rotates clockwise (viewed from the rear side)
by pushing the R-side of the selector button.
The L-side of the selector button is pushed to turn
the bit counterclockwise. (See Fig. 20) (The
L and R
marks are provided on the selector button.)
⅜ When the trigger switch is depressed, the tool rotates.
When the trigger is released, the tool stops.
⅜ The rotational speed of the drill can be controlled by
varying the amount that the trigger switch is pulled.
Speed is low when the trigger switch is pulled slightly
and increases as the trigger switch is pulled more.
⅜ When releasing the trigger of the switch, the brake
will be applied for immediate stopping.
8. Change rotation speed
Fig. 21 Fig. 22
Fig. 20
Trigger
switch
Selector
Button
Shift knob
Shift knob
High speed
L R
Low speed