Hitachi DS 12DVF, Safety Instructions And Instruction Manual

Page: 18 / 72

English
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4. 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 a large force is required for operation (operations indicated in the following chart)
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.
Table 2
5. Confirm the cap position (see Fig. 9)
The tightening torque of this unit can be adjusted
according to the cap position, at which the cap is set.
(1) When using this unit as a screwdriver, line up the one of
the numbers “1, 3, 5 ... 22” on the cap, or the black dot,
with the triangle mark on the outer body.
(2) When using this unit as a drill, line up the cap drill mark
“ ” with the triangle mark on the outer body.
Fig. 7
Fig. 8
High speed
Shift knob
Shift knob
Model DS9DVF DS12DVF / DS14DVF
Metal Drilling
Wood Drilling
Wood Screw
Tightening
When the diameter of the hole
exceeds 3/16"(5mm).
When the diameter of the hole
exceeds 15/32"(12mm).
When the size of the wood
screw exceeds 5/32"(3.8mm)
diameter
×
1-1/4"(32mm).
When the diameter of the hole
exceeds 1/4"(6.5mm).
When the diameter of the hole
exceeds 15/32"(12mm).
When the size of the wood
screw exceeds 5/32"(3.8mm)
diameter
×
1-31/32"(50mm).
Low speed
Cap
Triangle mark
Fig. 9
Weak
Strong
mark