Hitachi VARIABLE SPEED DV 14DV - Manual (Page 17)

English
17
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.
5. Confirm the cap position (see Fig. 9)
The three modes of screwdriver, drill and hammer drill
can be switched by the position of the cap in this unit.
(1) When using this unit as a screwdriver, line up the one of
the numbers “1, 3, 5 ... 22” on the cap, or white dots, with
the triangle mark on the outer body.
(2) When using this unit as a drill, align the cap drill mark “ ”
with the triangle mark on the outer body.
(3) When using this unit as a hammer drill, align the cap
hammer mark “ ” with the triangle mark on the outer
body.
Fig. 7 Fig. 8
Model DS14DVB DS18DVB
Brick Drilling
Metal Drilling
Wood Drilling
Wood Screw
Tightening
When the diameter of the hole
exceeds 1/4"(6.5mm).
When the diameter of the hole
exceeds 11/16"(18mm).
When the diameter of the hole
exceeds 5/16"(8mm).
When the diameter of the hole
exceeds 15/16"(24mm).
When the size of the wood screw exceeds 3/16"(4.8mm)
diameter
×
1-9/16"(40mm).
Fig. 9
Shift knob Shift knob
Low speed
High speed
Cap
Triangle mark
When the diameter of the hole exceeds 3/8"(10mm).
DV14DV•DV18DV-E.E65 6/21/02, 5:06 PM 17