Hitachi DS 18DBEL Handling Instructions Manual page 49

The unit indicates the tightening torque with the
numbers "1, 3, 5 ... 22" on the clutch dial , and the
dots. The tightening toque at position "1" is the
weakest and the torque is strongest at the highest
number. (See Figs. 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.
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).
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
Clutch dial Position
Use for drilling purpose.
1 – 22 Use the bit or socket matching the screw diameter.
1 – Use after drilling a pilot hole.
Clutch dial Position
For 4 mm or smaller
1 – 22
diameter screws.
For 8 mm or smaller
1 –
nominal diameter screws.
For 36 mm or smaller
diameters. (DS14DBEL)
For 38 mm or smaller
diameters. (DS18DBEL)
For drilling with a metal
working drill bit.
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 is 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.
Be sure to turn the shift knob.
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.
Table 4
Suggestion
Table 5
Rotating speed selection (Position of the shift knob)
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. (DS14DBEL)
For 22 mm or smaller
diameters. (DS18DBEL)
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