Hitachi Koki DS 9DM Mode D'emploi page 13

Do not use with the clutch dial numeral between
"22" and the line at the middle of the drill mark.
Doing so may cause damage (See Fig. 6).
2. Tightening torque adjustment
(1) Tightening torque
Tightening torque should correspond in its intensity
to the screw diameter. When too strong torque is
used, the screw head may be broken or be injured.
Be sure to adjust the clutch dial position according
to the screw diameter.
(2) Tightening torque indication
The tightening torque differs depending on the type
of screw and the material being tightened.
The unit indicates the tightening torque with the
numbers "1, 3, 5 ... 22" on the clutch dial, and a
dots. The tightening toque at position "1" is the
weakest and the torque is strongest at the highest
number (See Fig. 5).
(3) Adjusting the tightening torque
Rotate the clutch dial and line up the numbers "1,
3, 5 ... 22" on the clutch dial, or the dots, with the
triangle mark on the outer body. Adjust the clutch
dial in the weak or the strong torque direction
according to the torque you need.
CAUTION
The motor rotation may be locked to cease while
the unit is used as drill. While operating the driver
drill, take care not to lock the motor.
Table 6
Work
Wood
Drilling Steel
Aluminum
Machine screw
Driving
Wood screw
5. How to select tightening torque and rotational speed
Table 7
Use
Machine screw
Driving
Wood screw
Wood
Drilling
Metal
Use for drilling purpose.
Use the bit or socket matching the screw diameter.
Use after drilling a pilot hole.
Rotating speed selection (Position of the shift knob)
Clutch Position
For 4 mm or smaller diameter
1 – 22
screws.
For 6.2 mm or smaller nominal
diameter screws. (DS9DM)
1 –
For 6.8 mm or smaller nominal
diameter screws. (DS12DM)
For 21 mm or smaller
diameters. (DS9DM)
For 27 mm or smaller
diameters. (DS12DM)
For drilling with a metal
working drill bit.
Too long hammering may cause the screw broken
due to excessive tightening.
3. Change rotation speed
Operate the shift knob to change the rotational
speed. Move the shift knob in the direction of the
arrow (See Figs. 7 and 8).
When the shift knob is set to "LOW", the drill
rotates at a low speed. When set to "HIGH", the
drill rotates at a high speed.
CAUTION
When changing the rotational speed with the shift
knob, confirm that the switch is off.
Changing the speed while the motor is rotating will
damage the gears.
When setting the shift knob to "HIGH" (high speed)
and the position of the clutch dial is "17" or "22",
it may happen that the clutch does not engaged
and that the motor is locked. In such a case, please
set the shift knob to "LOW" (low speed).
If the motor is locked, immediately turn the power
off. If the motor is locked for a while, the motor
or battery may be burnt.
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 6.
Suggestions
LOW (Low speed)
English
HIGH (High speed)
For 6 mm or smaller
diameter screws.
For 3.8 mm or smaller
nominal diameter screws.
For 18 mm or smaller
diameters.
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