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BS 28 Combi.book Seite 12 Montag, 25. Oktober 2010 11:20 11
Charge-control Indicator
The battery 10 is fitted with a charge-control indica-
tor 12. It indicates the charge of the battery at any given
time during the working process.
By pressing the button 11, the battery charge can also
be checked when the battery has been removed, or
when the machine is at a standstill (machine must be
switched off for at least 1 minute). After approx. 4 sec-
onds the battery charge display automatically turns off.
When the first indication element flashes, the battery is
almost discharged and must be recharged again.
– Flashing 4 x: < 10 %
– Flashing 8 x: Battery is fully discharged
Auxiliary Handle (figure B)
Use auxiliary handles supplied with the tool.
Loss of control can cause personal injury.
Loosen the clamping element of the auxiliary handle 4
by turning the handle towards
Mount the auxiliary handle 4 in the desired working po-
sition at the recess on the power tool.
Mounting is possible in 90° offset steps.
Tighten the auxiliary handle 4 by turning the handle to-
wards
.
Drill Spindle Locking
For the easy and quick changing of the tools or the drill
chuck, the machine has a drill spindle locking device
which eliminates the need to hold the drill spindle by
hand or with a tool.
Inserting the tool (figure C)
For this purpose, Open chuck, insert the selected bit and
tighten chuck. After the clamping jaws have tightened
around the tool shaft, turn the chuck a further 1/4 in or-
der to let the chucking power retention engage (pos. ;
1x click).
Only than can the tool itself be chucked by vigorously
turning the sleeve in the "
gages audibly with a grating noise (pos.
Remove the tool
Open the chuck by turning the sleeve in the "AUF, RE-
LEASE
" direction.
In case of strong tension at the chuck steady the chuck
head with a fork wrench and loosen the sleeve by hand
with a strong jerk.
Starting Operation
Inserting the Battery
Use only original Würth lithium ion batteries with
the voltage listed on the nameplate of your power
tool.
Set the rotational direction switch 7 to the centre posi-
tion = lock-off and allow the charged battery 10 to en-
gage into the handle.
12
.
GRIP,ZU" direction (it en-
)).
Reversing the Rotational Direction
The
switch 7 is used to reverse
the rotational direction of the
machine. However, this is not
possible with the On/Off
switch 6 pressed.
a
b
Right Rotation (
a
)
Push the rotational direction switch left to the stop (for
screwing in screws).
Left Rotation (
b
)
Push the rotational direction switch right to the stop
(loosening or unscrewing screws).
The rotational direction may only be reversed when
the machine is at a standstill!
Switching On and Off
To start the machine, press the On/Off switch 8 and
keep it depressed.
The machine runs with variable speed between 0 and
maximum, depending on the pressure applied to the
On/Off switch 8. Light pressure on the On/Off
switch 8 results in low rotational speed, thus allowing
smooth, controlled starts. Further pressure on the switch
results in an increase in speed.
To switch off the machine, release the On/Off
switch 8.
Setting the Torque (figure D)
Carry out a practical test to determine with which of the
20 settings of the torque setting ring 3 the screws are
driven flush into the material.
Low setting, e. g., small screws, soft materi-
1
als.
High setting, e. g., large screws, hard mate-
20
rials.
When the torque setting is correctly adjusted, the safety
clutch disengages as soon as the screw is driven flush
into the material, or when the set torque is reached.
Switching between Screwdriving, Drilling
and Impact Drilling (figure E)
Carry out a practical test to determine with which of the
20 settings of the torque setting ring 3 the screws are
driven flush into the material.
Drilling: Set the selector 3 to the "drilling"
symbol.
Screwdriving: Set the selector 3 to the
"screwdriving" symbol.
Impact drilling: Set the selector 3 to the "im-
pact drilling" symbol.
When drilling in brick and lime-sand brick, car-
bide-tipped drill bits are required.
The rotational direction may only be reversed when
the machine is at a standstill!
rotational
direction
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