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5.3
Speed / Tightening torque
The speed and tightening torque are connected
directly. The lower the speed, the lower the tight-
ening torque.
The speed and tightening torque can be adjusted
steplessly by pressing the trigger (3) firmly or lightly,
thus adapting to working conditions.
Recommendation: determine the correct setting
by carrying out trial screwdriving.
5.4
Changing the screwdriving bit
The screwdriving bit used must match the
screw.
Damaged screwdriving bits must not be used.
For machines WITHOUT locking pin in the
spindle
Inserting the screwdriving bit: Fit the tool on the
square attachment until the limit stop (1) .
Removing the screwdriving bit: Remove the tool
from the square attachment (1) .
For machines WITH locking pin in the spindle
a
Use only screwdriving bits with a lateral drilled
hole (a). Only like this will the screwdriving bit
be retained by the locking pin (b).
Inserting the screwdriving bit:
- Align the tool and spindle such as the locking pin
(b) at the spindle and the drilled hole (a) at the tool
can be interlock after the fitting.
- Press in the locking pin (b) and keep pressed.
- Fit the tool on the square attachment until the limit
stop (1) .
- Make sure that the guard is placed securely.
Removing the screwdriving bit: Press in the
locking pin (b) with an appropriate object and
remove the tool from the square attachment (1) .
6. Use
Mount the machine on the screw, ensuring it is
aligned straight.
The screwdriving process has two elements:
inserting the screw and
tightening the screw with the percussion mech-
anism.
b
The tightening torque depends on the impact dura-
tion.
an impact duration of approx. 5 seconds, the
maximum tightening torque has been reached.
The torque curve depends on the type of applica-
tion:
With a hard screwdriving application (screw-
couplings in hard material such as metal), maximum
tightening torque is already reached after a short
impact duration (a).
With a soft screwdriving application (screw-
couplings in soft material such as wood), a longer
impact duration (b) is required.
Recommendation: determine the correct impact
duration by carrying out trial screwdriving.
Caution! With small screws, maximum torque can
be reached even below an impact duration of 0.5
seconds.
- This is why the duration of the screwdriving
process must be monitored exactly.
- Adjust the tightening torque by pressing firmly or
lightly on the trigger (3), ensuring that the screw is
not damaged or that the screw head does not tear
off.
7. Accessories
Use only genuine Metabo accessories.
Use only accessories that fulfil the requirements
and specifications listed in these operating instruc-
tions.
See page 4.
A Screwdriving bits
B 1/2" tool
For a complete range of accessories, see
www.metabo.com or the catalogue.
8. Repairs
Repairs to electrical tools must be carried out
by qualified electricians ONLY!
If you have Metabo electrical tools that require
repairs, please contact your Metabo service centre.
For addresses see www.metabo.com.
You can download spare parts lists from
www.metabo.com.
9. Environmental Protection
Observe national regulations on environmentally
compatible disposal and on the recycling of disused
machines, packaging and accessories.
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