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Recommendations on the power tool
operation
Impact drilling:
To switch to this operation mode, turn
switch 5 so that the Impact drilling sign coin
cides with the mark on the body.
Drilling (see fig. 8-11)
[CT10120]
•• Grease the drill bit regularly when drilling holes in
metals (except drilling non-ferrous metals and their al
loys).
5
Drilling, screwing, unscrewing:
To switch to this operation mode, move
switch 5 right to the stop.
•• When drilling hard metals, apply more force to the
power tool and lower the rotation speed.
Impact drilling:
To switch to this operation mode, move
switch 5 left to the stop.
•• 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.
One can switch to another operation mode without
stopping the power tool, simply decrease pressure
applied to it to some extent.
Stepless speed adjustment
•• In order to decrease dust production when drilling
holes in walls and ceilings, take actions indicated in
fig. 10.
Speed is controlled from 0 to maximum by
pressing force of on / off switch 9. Weak
pressing results in low revolutions, which
enable a smooth power tool switch-on.
Speed selector thumbwheel
•• 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. 11). Start
drilling at lower speed increasing it as the hole deep
ens. Caution: drill tiles in the impactless drilling
operation mode only.
Impact drilling
Use speed control 8 to set required revolutions and
impact frequency.
•• Push on / off switch 9 and lock it in the position with
lock-on button 10.
•• Set the needed speed.
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. 12)
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
•• 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.
Attention: one can only change the revo
lutions per minute range after the engine
fully stops.
•• 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 12.
The first speed - you can find the values of
the revolutions per minute range in the tech
nical specifications table.
Power tool maintenance / preventive
measures
The second speed - you can find the val
ues of the revolutions per minute range in
the technical specifications table.
Before carrying out any works on the power tool it
must be disconnected from the mains.
Changing the rotational directions
Cleaning of the power tool
Change the direction of rotation only
after a full stop of the motor, acting oth
erwise may cause damage to 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 6.
After-sales service and application service
Rotation to the right (drilling, screwing in) - move
the rotational direction switch 7 to the right.
Our after-sales service responds to your questions
concerning maintenance and repair of your product as
Rotation to the left (unscrewing) - move the rota
tional direction switch 7 to the left.
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