Würth master H 26-MLE Instrucciones De Servicio página 14

Stepless speed regulation
Light pressure on the On/Off switch 9 results in a low
speed, thus allowing drilling to begin in a control-
led manner. Further pressure results in an increase in
speed.
Reversing the direction of rotation
The direction of rotation of the product can be selected
using the rotational direction switch .
q Only operate the rotational direction switch 
when the product is at standstill. Otherwise the
product may be damaged.
q Always set the rotational direction switch to clock-
wise for hammer drilling and chiselling.
Clockwise rotation:
· Rotate rotational direction switch  to the stop in
the position.
Counter-clockwise rotation:
· Rotate rotational direction switch  to the stop in
the position.
Mode selector switch
q Only operate the mode selector switch 11 when
the product is at standstill.
Press the release button 10 on the mode selector switch
11 and at the same time turn the switch to the required
position.
Drilling Hammer drilling
14
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Change Chiselling
chiselling (rotation off)
position
Chiselling, SDS-plus
The chisel can be locked in the required position.
This feature allows the optimal working position to be
used.
Insert the chisel in the tool holder.
Press the release button 10 and at the same time turn
the mode selector switch to "Change chiselling posi-
tion" .
Turn the tool holder to the required chisel position.
Engage the mode selector switch 11 in the "Chiselling"
position. The tool holder is locked in this position.
Overload clutch
If the drill jams or sticks, the drive to the drill spindle is
interrupted.
Due to the forces that are produced in these circum-
stances, always hold the product and the auxiliary
handle firmly and ensure you are standing securely.
Extraction
The dust extraction prevents large amounts of dust in
the air and the production of dirt, it also makes dis-
posal easier.
Fitting extraction device (Figure IX)
Press button 12 on the auxiliary handle and remove
depth stop 13.
Press button 12 on the auxiliary handle again, fit the
extraction device (accessory) and connect to a suit-
able vacuum cleaner. The extraction device retracts
back to the pre-set drilling depth. This action ensures
the extraction head is always in close contact with the
surface.
The product can be connected directly to the socket
on a Würth industrial vacuum cleaner with automatic
operation. The vacuum cleaner is started automatically
when the drill is switched on.
Adjusting drilling depth (Figure X)
Undo wing screw 21 and place the product with the
tool firmly against the surface to be worked (DO
NOT switch on). Move guide tube 22 until the extrac-
tion head is in contact with the surface to be worked.
Retighten wing screw 21.
Undo clamping screw 18 and move depth stop 19
until it is at the required drilling depth "t". Retighten
clamping screw 18.