DWT BH10-26 B Notice Originale page 39

Always use additional handle 4 when
working, it will ensure a better control of
your power tool and reduce recoil.
Drilling (see fig. 19-23)
[BH10-26 B, BH10-28 VB, BH12-28 VB, BH13-32 VB,
BH15-32 VB, BH15-36 VB]
Caution: drill wood and metals in the
impactless drilling operation mode only.
• Grease the drill bit regularly when drilling holes in
metals (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
necessary diameter (see fig. 19).
• 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 20.
• 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 presumed hole center and drill after that (see
fig. 21). Caution: drill tiles in the impactless drilling
operation mode only.
Impact drilling (see fig. 22-23)
[BH10-26 B, BH10-28 VB, BH12-28 VB, BH13-32 VB,
BH15-32 VB, BH15-36 VB, BH16-42 VB]
• At impact drilling the result does not depend on the
pressing force you apply to your electric tool, which is
due to the impact mechanism design� This is why do
not exert excessive pressure on your electric tool, as it
may result in borer seizing and motor overload�
• In order to decrease dust production when drilling
holes in walls and ceilings, take actions indicated in
fig. 22-23. Mount dust collector 15 as shown in fig-
ure 22 for drilling holes in the ceilings�
Chiselling
• When working, make sure to properly adjust the
working accessory to the material being processed:
not too close to the edge as the power tool will need
to be displaced often, but not too far as the accessory
can get stuck in the material being processed�
• Press the power tool while holding it tightly with both
hands� Do not use excessive force: the energy of the
percussion mechanism is enough for the effective per-
formance�
• Avoid the excessive penetration of the working ac-
cessory into the material being processed (for exam-
ple, when loosening the soil or in the course of the
building structures destruction) as the working acces-
sory may become stuck�
• If the working accessory becomes stuck in the ma-
terial during the operation, do not attempt to free it
with the use of the power tool as a lever as the power
tool can be damaged� Remove the power tool from
the jammed accessory� Continue the operation with
The manufacturer reserves the possibility to introduce changes.
the use of another accessory in order to release the
jammed one� Note: it is strictly prohibited to knock
out the jammed working accessories or to swing it
and to try to extract it with the use of foreign tools
or objects (pieces of pipe, winches, jacks, etc.).
Power tool maintenance /
preventive measures
Before carrying out any works on the power tool it
must be disconnected from the mains.
Power tool lubrication
The power tool lubricant quantity has to be checked
on a regular basis after every 30 hours of operation,
as well as after replacing the carbon brushes� In order
to do that, use flange wrench 13 to release cap 8 (for
H17-11 B use Allen key 23 to unscrew bolts of cap 8),
check the lubricant quantity and add it, if needed� Use
special grease from tube 14�
Using the power tool without grease or
with insufficient grease volume is pro-
hibited as this may lead to the power tool
being broken down or can void your right
for warranty repair.
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
39
Transportation
of the power tools
Environmental
protection