- 6 -
button, soft impact mode, medium impact
mode and hard impact mode can be
selected (3 settings).
∗
Please use this together with digital
clutch setting.
Digital clutch : B (See p.7.)
→
This unit is equipped with the digital
clutch function.
The driver rotation will stop when the set
clutch load is reached.
∗
Please use this together with impact
power mode select.
This digital clutch is not intended for
controlling the accuracy of the fasten-
ing torque.
Example application not to be used;
To control the shut-off torque used to
tighten screws and bolts for manufac-
turing and assembly.
Do not use the digital clutch when
tightening screws with a low tightening
torque into materials, such as thin plastic.
Example applications not to be used;
When tightening screws into light-
weight steel sheet which thickness is
0.8 mm or less.
When tightening screws into soft sur-
face materials, such as interior finish-
ing materials.
One-shot impact function : C (See p.7.)
→
Set the one-shot impact function to
tighten screws slightly to adjust the
screw head flush to the material surface.
Select the clutch setting to match the
application. This is used when readjust-
ing is continuously required.
The driver automatically rotates approx-
imately half round and stops each time
the trigger switch is depressed. (For
bolts, it stops after approximately 5
impacts.)
Within 1 sec. after the trigger switch is
released once, if it is depressed again,
the one-shot impact function will auto-
matically operate.
Indication lights on the control panel
The indication lights will go off in the
following cases.
• The driver is not operated for 5 min.
• When the battery is replaced.
Depressing the trigger switch again, then
indication lights go on in the previous
condition.
Main recommended applications
and setting guidelines. (
see p.11.)
Be sure to set the impact power mode
and digital clutch to match the material
and screws being used for the application.
Adjust the settings from low to high
while checking them to settle on a final
setting for impact power mode select
and for digital clutch setting.
When driving screws into wood, use
the screws of less than 90 mm long and
avoid knots of wood materials.
∗
One-shot impact function requires the
impact power mode select and digital
clutch settings.
Impact Power Mode Select
Selecting the impact power among 3
modes (Soft, Medium, Hard).
Impact power mode button
Press the impact power mode button to set it.
The mode changes to hard, medium, or soft
each time the button is pressed. To use auto-
matic mode shifting, press the button for a
period (0.6 sec. or more). It is recommended
that the impact power mode select be used
together with the digital clutch setting and
one-shot impact function.
The driver is preset to “hard” impact mode
setting when shipped from the manufacturer.
Recommended work guideline table
When maximum power is required in each
impact mode, set the clutch to the “F” mode.
Impact
Power mode
Display
Recommended Application
H
For hard impact power mode.
Fastening long wood
screws.
Tightening bolts when
installing devices, etc.
Approx.
2,800R.P.M.(Max.)
M
For medium impact power
mode.
Fastening small diameter
screws into hard materials.
Driving machine screws
when installing devices.
Approx.
2,500R.P.M.(Max.)
S
For soft impact power mode.
Installing gypsum board.
Installing soft metal window
flame.
Installing interior finishings.
Approx.
2,000R.P.M.(Max.)
