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Hitachi DV18DSFL Manual

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12
6. How to select tightening torque and rotational speed
Table 5
Use
Clutch Dial
Position
Rotating speed selection (Position of the shift knob)
LOW (Low speed) HIGH (High speed)
Driving
Machine screw 1 – 22
For 4 mm or smaller diameter
screws.
For 6 mm or smaller diameter
screws.
Wood screw
1 –
For 8 mm or smaller nominal
diameter screws.
For 4.8 mm or smaller nominal
diameter screws.
Drilling
Brick
For 13 mm or smaller diameters.
For 8 mm or smaller diameters.
(DV14DSFL)
For 10 mm or smaller diameters.
(DV18DSFL)
Wood
For 32 mm or smaller diameters.
(DV14DSFL)
For 18 mm or smaller diameters.
(DV14DSFL)
For 38 mm or smaller diameters.
(DV18DSFL)
For 22 mm or smaller diameters.
(DV18DSFL)
Metal
For drilling with a metal working drill
bit.
○ 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
effi ciency, but could also shorten the service life of
drill bit. Operate the impact driver drill within
10-15 kg
pressing force while drilling into brick.
12. Using the hook
The hook is used to hang up the power tool to your waist
belt while working.
CAUTION
○ When using the hook, hang up the power tool fi rmly not to
drop accidentally.
If the power tool is dropped, it may lead
to an accident.
○ When carrying the power tool with hooked to your waist
belt, do not fi t any bit to the tip of power tool. If the sharp
bit such as drill is fi tted to the power tool when carrying it
with hooked to your waist belt, you will be
injured.
○ Install securely the hook. Unless the hook is securely
installed, it may cause an injury while using.
(1) Removing the hook.
Remove the screws fi xing the hook with screw driver.
(Fig. 11)
(2) Replacing the hook and tightening the screws.
Install securely the hook in the groove of power
tool and
tighten the screws to fi x the hook fi rmly. (Fig. 12)
CAUTION
○ Only Hitachi STANDARD ACCESSORIES phillips bit
(No. 2 × 65L; Code No. 983006) may be used. Do not
use other bits since they may come loose.
MAINTENANCE AND INSPECTION
1. Inspecting the tool
Since use of as dull tool will degrade effi ciency and cause
possible motor malfunction, sharpen or replace the tool
as soon as abrasion is noted.
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that
they are properly tightened. Should any of the
screws be
loose, retighten them immediately. Failure to do so could
result in serious hazard.
CAUTION
○ The selection examples shown in Table 5 should be
considered as general standard. As diff erent types of
tightening screws and diff erent materials to be tightened
are used in actual works proper
adjustments are naturally
necessary.
○ When using the impact driver drill 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 the
impact driver drill at LOW (low speed) when using a
machine screw.
NOTE
The
use of the battery in a cold condition (below 0 degree
Centigrade) can sometimes result in the weakened
tightening torque and reduced amount of work. This,
however, is 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,
fi rmly grasp the ring and tighten the sleeve by turning it
toward the right (in the clockwise direction as viewed
from the front) (See Fig. 9).
○ 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. 10).
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. Confi rm 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.
The L-side of the selector button is pushed to turn the bit
counterclockwise (See Fig. 10) (The
and 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.
000Book_DV14DSFL_WE.indb 12000Book_DV14DSFL_WE.indb 12 2011/03/23 12:00:472011/03/23 12:00:47
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