Hitachi DV 14DBL Handling Instructions Manual page 36

English
7. 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 6 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.
8. 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.
Table 6
Rotating speed selection (Position of the shift knob)
Clutch Dial
Position
LOW (Low speed)
For 4 mm or smaller
1 – 22
diameter screws.
For 8 mm or smaller
1 –
nominal diameter screws.
For 14 mm or smaller
diameters. (DV14DBL)
For 16 mm or smaller
diameters. (DV18DBL)
For 50 mm or smaller
diameters. (DV14DBL)
For 65 mm or smaller
diameters. (DV18DBL)
For drilling with a metal
working drill bit.
36
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. (DV14DBL)
For 12 mm or smaller
diameters. (DV18DBL)
For 24 mm or smaller
diameters. (DV14DBL)
For 27 mm or smaller
diameters. (DV18DBL)