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7.1 Additional handle
For safety reasons always use the additional handle [11], firmly
mounted on the clamping neck [3]. The stop bar [12] can be used
to adjust the drilling depth. By rotating the handle the position of
the addition al handle and the depth stop can be modified.
7.2 Clamping of drill bits
Chuck with ring gear
Open the chuck to allow mounting of the tool. Mount the tool on.
Mount the tool on and, using the chuck hook [13] clamp in evenly.
Quick-tightening chuck
Open the chuck to allow mounting of the tool. Mount the tool on.
Tighten the quick‑tightening chuck by your hand so strongly that
a "click" sound is heard clearly. Thus the chuck will be secured
automatically.
This lock will release again if you turn the sleeve contra direction‑
ally to remove the tool.
Be careful as the chuck gets hot:
In case of longer work tasks, especially in impact drill-
ing, the chick might get very hot. In this case you are
recommended to wear protective gloves.
7.3 Switching on and off
By pressing the switch button [7] the machine activates and releas‑
ing the button stops it.
7.4 Permanent run
By pressing the switch button [7] to the stop and simultaneous
pressing the latching pin [6] permanent run is achieved.
Repeated pressing the switch button [7] and its release the perma‑
nent run is discontinued.
7.5 Speed control
By light and gradual pressing the controller button [7] you will
achieve low speed and controlled continuous run‑up.
By further gradual pressing the button the speed increases to the
pre‑selected speed.
7.6 Electronic speed pre-selection
Using the pre‑selection wheel [8] the required pre‑selected speed
is set ‑ even if the machine runs. The necessary speed depends on
the type of the material drilled, and a practical test is recommend‑
ed to verify it.
If the machine is loaded considerably, adjust the pre‑selection
wheel [8] to the marginal position in the + direction (max speed
– control disconnected).
After a longer work at low speed leave the machine run idle for
3 minutes at maximum speed to cool the engine down.
7.7 Gear shifting
Use the speed lever [10] to adjust the 2 speed gear:
1st Speed – lower speed gear – higher torque
2nd Speed – higher speed gear – lower torque
In any speed gear you can adjust the final speed by means of the
electronic pre‑selection. However, firstly select the mechanical
speed gear.
Changing the gears can be done at slowing the machine down or
in idle run but never when the machine is fully loaded. Once the
gear is changed, leave the machine start up slowly
7.8 Change in rotation
Adjust the rotation direction switch [9] to the right (left run) or to
the left (right run). The left run allows e.g. cutting the threads and
unscrewing of bolts or nuts.
Changing is blocked if the controller button is pressed. The rotation
direction has to be changed when the machine is idle.
WARNING!
If the left run is used, the chuck has to be
screwed on very firmly.
7.9 Drilling and impact drilling
Use the impact lever [4] to gear the impact up or down. The shift‑
ing can be done even when the machine runs.
Drilling
Shift the gear lever [4] to the left towards the drill‑bit
symbol.
Impact drilling
Shift the gear lever [4] to the right towards the hammer
symbol.
The impact drilling is recommended to be used in concrete, brick‑
work and earthenware. The switch lever [9] must be always shifted
to the right run.
7.10 Removing the chuck with ring gear
(Fig.)
Hold the spindle on the surface [2] using an open wrench (13 mm).
Insert the chuck hook [13] into a single opening on the chuck and
by turning left screw the chuck out. Release the firmly clamped
chuck by impacts of the hammer on the chuck hook [13].
7.11 Removing the quick-tightening
chuck (Fig.)
Clamp the hexagonal wrench [15] into the chuck. Hold the spindle
on the surface [2] using a spanner (13 mm). By turning the chuck
to the left using the hexagonal wrench screw the chuck together.
Release the firmly clamped chuck by impacts of the hammer on
the hexagonal wrench.
Proceed in reverse sequence to screw the chuck on.
7.12 Power Plug
WARNING!
Risk of injury if the power tool is used with
incorrect mains power supply.
The power tool may only be used with single‑phase alternating
current with rated voltage of 220–240 V / 50–60 Hz. The power tool
has double insulation against injury by electric current in line with
standard EN 62841 and features integrated interference elimina‑
tion in line with standard EN 55014.
Before turning the tool on, check that the information on the pro‑
duction plate matches the real voltage in the socket.
The power cable can be extended if needed as follows:
– 20 m length, conductor cross section: 3 × 1.5 mm
– 50 m length, conductor cross section: 3 × 2.5 mm
Only use extension cables designed for outdoor use and bearing
the appropriate markings.
Operation with an Electric Generator (EG) with a Combustion
Engine
The manufacturer of the tool cannot guarantee faultless operation
with all EGs.
The tool can be used with an EG if the following conditions are met:
» The output voltage of the EG must always be in 230 VAC ±10 %
range. The EG should be fitted with automatic voltage regula‑
tion (AVR). Without AVR, the tool may not work correctly and
may even get damaged!
» The power of the EG must be at least 2.5 times higher than the
input power of the tool.
» Using the power tool with an EG with insufficient power may
result in speed fluctuations and reduced output of the tool.
8 Work instructions
Drill bits
For steel use perfect and sharpened drill bits made of good‑quality
high‑speed steel.
Drilling stands
For precise drilling on smaller parts, use of a drilling stand is
recommended.
English
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