DWT BM-110 T Notice Originale page 22

It is recommended to set the torque regula-
tor 2 into the position "Drill" to perform drill-
ing�
Step speed selector switch
[BM-110 T, BM-280 T]
Attention: one can only change the revo-
lutions per minute range after the engine
fully stops.
In order to choose the "1" gear, move the switch 3
back� This mode is used for the fastening of screws or
for large diameter hole drilling�
In order to choose the "2" gear, move the switch 3
forward� This mode is used for speed drilling of small
diameter holes�
Stepless speed adjustment
Speed is controlled from 0 to maximum by
pressing force of on / off switch 6� Weak
pressing results in low revolutions, which
enable a smooth power tool switch-on�
Speed selector thumbwheel
[BM-400, BM-400 C, BM-600, BM-600 C]
Use speed control 12 to set required number of revolu-
tions�
• Push on / off switch 6 and lock it in the position with
locking button for on / off switch 9�
• Set the needed speed�
The required speed is dependent on the material and
can be determined with practical trials�
When operating your power tool at a low speed for a
long time, it has to be cooled down for 3 minutes� To do
it, set a maximum speed and leave your power tool to
run idle�
Changing the rotational directions (see fig. 8)
Change the direction of rotation only
after a full stop of the motor, acting oth-
erwise may cause damage to the power
tool.
[BM-300, BM-400, BM-400 C, BM-600, BM-600 C]
Rotation to the right (drilling, screwing in) - move
the rotational direction switch 5 to the right�
Rotation to the left (unscrewing) - move the rota-
tional direction switch 5 to the left�
[BM-110 T, BM-280 T]
Clockwise rotation (drilling, fastening of screws) -
move the rotational direction switch 5 to the left as it is
shown in fig. 8.
Counter clockwise
screws) - move the rotational direction switch 5 to the
right as it is shown in fig. 8.
rotation (unscrewing
Spindle automatic locking
[BM-110 T, BM-280 T]
If the on / off switch 6 is not pressed, the spindle of the
power tool is locked this enables to use the power tool
as an ordinary screwdriver (for example it can be used
to tighten manually screws or bolts)�
Light-emitting diode
[BM-280 T]
When the power tool is connected to the mains, the
LED 7 operates in an indicator mode (low light) and
shows that the power tool is ready to be turned on�
When you press the on / off switch 6, the LED 7 oper-
ates in a mode of light (strong light) it allows you to
work in low light conditions�
on the power tool operation
Drilling (see fig. 9-12)
• Grease the drill bit regularly when drilling holes in met-
als (except drilling non-ferrous metals and their alloys)�
• When drilling hard metals, apply more force to the
power tool and lower the rotation speed�
• When drilling large diameter holes in metal, first drill
a hole with a smaller diameter and ream it till the nec-
essary diameter (see. fig. 9).
• In order to avoid splitting of the surface at an exit
point of a drill bit when drilling holes in wood, follow the
instructions shown in figure 10.
• In order to decrease dust production when drilling holes
in walls and ceilings, take actions indicated in figure 11.
• When drilling holes in glazed ceramic tiles, in order
to improve the drill centering accuracy and to save the
glaze from damage, apply adhesive tape to the pre-
sumed hole center and drill after that (see fig. 12). Start
drilling at lower speed increasing it as the hole deepens�
Screwing the screws (see fig. 13)
• To make fastening of screws easier and in order to
prevent cracking of the work pieces, first drill a hole
with a diameter equal to 2/3 of a diameter of the screw�
• If you are connecting work pieces with the help of
screws, in order to achieve durable joint without get-
ting cracks, fracturing or layering, take actions shown
in figure 13.
Power tool maintenance /
Before carrying out any works on the power tool it
must be disconnected from the mains�
Cleaning of the power tool
An indispensable condition for a safe long-term exploi-
tation of the power tool is to keep it clean� Regularly
flush the power tool with compressed air thought the
ventilation slots 4�
After-sales Service and Application Service
the
Our after-sales service responds to your questions
concerning maintenance and repair of your product as
English
22
Recommendations
preventive measures