Hitachi DS 14DMR Handling Instructions Manual page 11

4. The scope and suggestions for uses
The usable scope for various types of work based on the mechanical structure of this unit is shown in Table 4.
Work
Wood
Drilling Steel
Aluminum
Machine screw
Driving
Wood screw
5. How to select tightening torque and rotational speed
Use
Machine screw
Driving
Wood screw
Wood
Drilling
Metal
CAUTION
The selection examples shown in Table 5 should be
considered as general standard. As different types of
tightening screws and different materials to be
tightened are used in actual works proper adjustments
are naturally necessary.
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 tightning torque is too strong. Use
the driver drill at LOW (low speed) when using a
machine screw.
NOTE
The use of the battery EB1426H, EB1430H, EB1826HL
and EB1830HL 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. 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. 8).
If the sleeve becomes loose during operation, tighten
it further.
The tightening force becomes stronger when the
sleeve is tightened additionally.
Table 4
Use for drilling purpose.
Use the bit or socket matching the screw diameter.
Use after drilling a pilot hole.
Table 5
Rotating speed selection (Position of the shift knob)
Cap Position
LOW (Low speed)
For 4 mm or smaller diameter
1 – 22
screws
For 8 mm or smaller nominal
1 –
diameter screws
For 50 mm or smaller
diameters (DS18DMR)
For 44 mm or smaller
diameters (DS14DMR)
For drilling with a metal
working drill bit
Suggestions
For 6 mm or smaller
diameter screws
For 4.8 mm or smaller
nominal diameter screws
For 24 mm or smaller
diameters
(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. 8).
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 7 and then turn the
sleeve to the loose side (left side) while operating the
clutch. It should be easy now to loosen the sleeve.
7. Automatic spindle-lock mechanism
This unit has automatic spindle-lock mechanism for
quick bit changes.
8. Confirm that the battery is mounted correctly
9. 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. 9). (The
marks are provided on the selector button.)
10. Switch operation
When the trigger switch is depressed, the tool rotates.
When the trigger is released, the tool stops.
English
HIGH (High speed)
L and
R
10