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steel tube.
Chipping/Chiseling (Fig. B)
u When the cutting / stripping / removing opera-
tion is conducted, please put the operation
modes selector (3) to position , the drilling
bit, cold chisel and scaling chisel etc. should be
properly used.
Warning! Do not rotate the knob when the power
tool is rotating under the load, otherwise it will be
damaged.
Hammer drilling (Fig. B)
u When using the hammer driller to drill holes on
the masonry and concrete surfaces, the opera-
tion mode selector (3) should be set to position
.
u The drilling bit should be aligned to the drilling
position, and then press the switch button to
achieve the best effect. Keep the power tool be
positioned correctly, prevent it from deviating
the hole.
u When the fragments plug the borehole or
powders, please do not apply further pressure,
and make the tool rotate in an idling state, then
gradually take out the drilling bit from the hole.
Repeat the said steps for several times, the
plugged hole can be clean, and then resume
the normal drilling.
Warning! When the drilling bit begins to break
down the reinforced concrete or hit the steel bar
inside the concrete, the power tool may have
dangerous reaction force. Please always keep
balance, stable posture and tightly grip the tool, to
prevent from generating the dangerous reaction
force. When the concrete is chiseled, the distance
between the two points of one chiseling shall not
be too much away from the edge, which shall be
about 8cm or so, dene the distance through nd-
ing the cracking strength of the concrete.
Overload coupling device
If the drilling bit is clamped or hooked up, the driv-
ing force transmitted to the drill shaft will be cut off.
A huge force will occur, so two hands must tightly
grip the power tool when it is in operation, and
ensure that the operator is standing in a stable and
xed position.
Select the depth of holes to be drilled (Fig.
C)
A depth gauge is an easy to use ruler to ensure
that the drilling depth is consistent. Unlock the side
handle, adjust the depth gauge according to the
required depth, and then tighten the side handle.
u Unfasten the side handle (6) by turning counter-
clockwise the grip.
u Set the depth stop (7) to the desired position.
The maximum depth of the drilled hole shall
equal to the distance between the tip of drilling
bit and the front end of the depth stop.
u Tighten the side handle by turning the grip
clockwise.
Switch on and off
Warning! Before inserting the plug, please con-
rm whether the switch can trigger freely or not,
whether it can return to the original position after
releasing.
u Press the switch button (1), the power tool can
be started immediately.
u Release the button (1), the tool stops rotating.
Accessories
The performance of an electric tool depends on
its accessories. Black & Decker accessories are
designed according to high quality standards, to
enhance the performance of electric tool. The use
of these accessories can help you conveniently
operate the tool.
Maintenance
The Black & Decker cord / cordless appliance /
tools are of sophisticated design, can be used for
a long time, and only little maintenance is needed.
To obtain consistent satisfactory use, proper
maintenance and regular cleaning of the tools are
necessary.
Warning! Before performing any maintenance
work on the cord / cordless electric tools, the fol-
lowing points must be implemented:
u Switch off the power of the equipment / tools
and pull off the plug;
u If the equipment / tools are equipped with inde-
pendent battery pack, please turn off the power
and remove the battery pack from the equip-
ment / tools.
u If the equipment / tools are equipped with an
integrated battery, please run out the battery,
before turning off its power.
u Before the cleaning, unplug the charger plug