Hitachi DV 14DV Mode D'emploi page 11

6. How to select tightening torque and rotational speed
Use
Machine screw
Driving
Wood screw
Brick
Drilling
Wood
Metal
CAUTION
The selection examples shown in Table 5 should
be considered as general standard. As different
types of tightening screws and different materials
to be tightened are used in actual works proper
adjustments are naturally necessary.
When using this unit with a machine screw at HIGH
(high speed), a screw may damage or a bit may
loose due to the tightning torque is too strong. Use
this unit at LOW (low speed) when using a machine
screw.
NOTE
The use of the battery EB14H, EB1426H, EB1430H,
EB18H, EB1826HL, EB1830H and EB1830HL in a cold
condition (below 0 degree Centigrade) can
sometimes result in the weakened tightening torque
and reduced amount of work.
a temporary phenomenon, and returns to normal
when the battery warms up.
7. Mounting and dismounting of the bit
(1) After inserting a driver bit, etc. into the keyless drill
chuck, firmly grasp the ring and tighten the sleeve
by turning it toward the right (in the clockwise
direction as viewed from the front) (See Fig. 8).
If the sleeve becomes loose during operation, tighten
it further. The tightening force becomes stronger
when the sleeve is tightened additionally.
(2) Dismounting the bit
Firmly grasp the ring and loosen the sleeve by
turning it toward the left (in the counter-clockwise
direction as viewed from the front) (See Fig. 8).
CAUTION
When it is no longer possible to loosen the sleeve,
use a vise or similar instrument to secure the bit.
Set the clutch mode between 1 and 11 and then
turn the sleeve to the loose side (left side) while
operating the clutch. It should be easy now to
loosen the sleeve.
8. Confirm that the battery is mounted correctly
9. Check the rotational direction
The bit rotates clockwise (viewed from the rear
side) by pushing the R-side of the selector button.
Table 5
Rotating speed selection (Position of the shift knob)
Cap Position
LOW (Low speed)
For 4 mm or smaller
1 – 22
diameter screws.
For 8 mm or smaller nominal
1 –
diameter screws.
For 14 mm or smaller
diameters. (DV14DV)
For 16 mm or smaller
diameters. (DV18DV)
For 36 mm or smaller
diameters. (DV14DV)
For 38 mm or smaller
diameters. (DV18DV)
For drilling with a metal
working drill bit.
This, however, is
The L-side of the selector button is pushed to turn
the bit counterclockwise (See Fig. 9) (The
R
marks are provided on the body).
CAUTION
Always use this unit with clockwise rotation, when
using it as an impact drill.
10. Switch operation
When the trigger switch is depressed, the tool
rotates. When the trigger is released, the tool stops.
The rotational speed of the drill can be controlled
by varying the amount that the trigger switch is
pulled. Speed is low when the trigger switch is
pulled slightly and increases as the trigger switch
is pulled more.
NOTE
A buzzing noise is produced when the motor is
about to rotate; This is only a noise, not a machine
failure.
11. For drilling into brick
Excessive pressing force never increases drilling
speed. It will not only damage the drill tip or reduce
working efficiency, but could also shorten the service
life of drill bit. Operate the impact drill within 10-
15 kg pressing force while drilling into brick.
12. Using the hook
CAUTION
When using the hook, pay sufficient attention so
that the main equipment does not fall. If the tool
falls, there is a risk of accident.
Do not attach the tip tool except phillips bit to the
tool main unit when carrying the tool main unit with
the hook suspended from a waist belt.
Injury may result if you carry the equipment
suspended from the waist belt with sharp tipped
components such as drill bit attached.
The hook can be installed on the right or left side and
the angle can be adjusted in 5 steps between 0° and
80°.
(1) Operating the hook
(a) Pull out the hook toward you in the direction
of arrow (A) and turn in the direction of arrow
(B) (Fig. 10).
English
HIGH (High speed)
For 6 mm or smaller
diameter screws.
For 4.8 mm or smaller
nominal diameter screws.
For 10 mm or smaller
diameters. (DV14DV)
For 10 mm or smaller
diameters. (DV18DV)
For 18 mm or smaller
diameters. (DV14DV)
For 24 mm or smaller
diameters. (DV18DV)
L and
10