DWT SBM-500 1 Notice Originale page 23

• Push on / off switch 11 and lock it in the position with
lock-on button 10�
• 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�
Step speed selector switch
[SBM-1050 DT]
Attention: one can only change the revo-
lutions per minute range after the engine
fully stops.
The first speed - you can find the values of
the revolutions per minute range in the tech-
nical specifications table.
The second speed - you can find the val-
ues of the revolutions per minute range in
the technical specifications table.
Changing the rotational directions
Change the direction of rotation only after
a full stop of the motor, acting otherwise
may cause damage to the power tool.
Rotation to the right (drilling, screwing in) - move
the rotational direction switch 8 to the right�
Rotation to the left (unscrewing) - move the rota-
tional direction switch 8 to the left�
Level indicator (see fig. 7)
[SBM-500 1]
The level indicator 13 shows the position of the power
tool case in the horizontal plane (see fig. 7). The power
tool case is in the horizontal position if the air bubble is
in the middle of the level indicator 13�
Recommendations
on the power tool operation
Drilling (see fig. 8-12)
• 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. 8).
• 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 9.
• In order to decrease dust production when drilling holes
in walls and ceilings, take actions indicated in fig. 10-11.
• 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
The manufacturer reserves the possibility to introduce changes.
drilling at lower speed increasing it as the hole deep-
ens� Caution: drill tiles in the impactless drilling
operation mode only.
Impact drilling
During the impact drilling, the result does not depend
on the pressure applied to the power tool - this is
caused due to the peculiarities in the impact mecha-
nism design� That is why you should not apply exces-
sive pressure to the power tool - it can jam the drill and
overload the engine�
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.
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 7�
After-sales service and application service
Our after-sales service responds to your questions
concerning maintenance and repair of your product as
well as spare parts� Information about service centers,
parts diagrams and information about spare parts can
also be found under: www.dwt-pt.com�
•
Categorically not to drop any mechanical impact on
the packaging during transport�
• When unloading / loading is not allowed to use any
kind of technology that works on the principle of clamp-
ing packaging�
Recycle raw materials instead of dispos-
ing as waste.
Power tool, accessories and packaging
should be sorted for environment-friendly
recycling�
The plastic components are labelled for categorized
recycling�
These instructions are printed on recycled paper man-
ufactured without chlorine�
English
Автотовары «130»
22
Power tool maintenance /
preventive measures
Transportation
of the power tools
Environmental
protection