5. Change rotation speed
Operate the shift knob to change the rotational speed.
Move the shift knob in the direction of the arrow (see
Figs. 5 and 6).
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, confi rm that the switch is off .
Changing the speed while the motor is rotating will
damage the gears.
○ When a large force is required for operation, set the
shift knob to “LOW”. If “HIGH” is set and the unit is
used, it may cause the motor to burn out or malfunction
prematurely.
6. Confi rm the clutch dial position (See Fig. 7)
The tightening torque of this unit can be adjusted
according to the clutch dial position, at which the clutch
dial is set.
(1) When using this unit as a screwdriver, line up the one
of the numbers “1, 5, 9 ... 21” on the clutch dial, or the
black dots, with the triangle mark on the outer body.
(2) When using this unit as a drill, align the clutch dial drill
mark “
” with the triangle mark on the outer body.
CAUTION
○ The clutch dial cannot be set between the numerals “1,
5, 9 ... 21” or the black dots.
○ Do not use with the clutch dial numeral between “22”
and the black line at the middle of the drill mark. Doing
so may cause damage (See Fig. 8).
7. 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 (See Fig. 7)
The tightening torque diff ers depending on the type of
screw and the material being tightened.
The unit indicates the tightening torque with the
numbers “1, 5, 9 ... 21” and black dots on the clutch
dial. The tightening toque at position “1” is the weakest
and the torque is strongest at the highest number.
(3) Adjusting the tightening torque (See Fig. 7)
Rotate the clutch dial and line up the numbers “1, 5,
9 ... 21” or the dots on the clutch dial, 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.
○ 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.
○ Too long hammering may cause the screw broken due
to excessive tightening.
8. Switch operation
(1) Lock switch
The tool is equipped with a lock switch. To activate the
main switch lock, move the lock switch to the “▼ LOCK”
position. Move the lock switch to the opposite position
to operate the tool. (Fig. 9)
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