A damaged dust protection cap should be changed
immediately. We recommend having this carried out
by an after-sales service.
Inserting SDS-plus Drilling Tools
The SDS drill chuck allows for simple and convenient
changing of drilling tools without the use of additional
tools.
Clean and lightly grease the shank end of the tool. Insert
the tool in a twisting manner into the tool holder until it
latches itself.
Check the latching by pulling the tool.
As a requirement of the system, the SDS drilling tool can
move freely. This causes a certain radial run-out at no-
load, which has no effect on the accuracy of the drill hole,
as the drill bit centres itself upon drilling.
Removing SDS Drilling Tools
Push back the locking sleeve 4 and remove the tool.
4. Operation
4.1 Starting Operation
Observe correct mains voltage! The voltage of
the power source must agree with the voltage
specified on the nameplate of the machine.
Power tools marked with 230 V can also be
operated with 220 V.
Setting the Operating Mode (HD)
With the selector switch for drilling/hammer drilling 9 , the
operating mode of the machine is selected. To change the
operating mode, press the release button 8 and turn the
drilling/hammer drilling selector switch 9 to the desired
position until it can be heard to latch.
Note: Only change the mode of operation while
disconnected from the machine! Otherwise you may
damage the machine.
Position for hammer drilling in concrete or stone, (figs. 12
and 13).
Position for drilling without impact in wood, metal, ceramic
and plastic as well as for screwdriving and thread cutting.
(Figs. 14 and 15).
Position for adjustment of the chiseling position (figs. 16
and 17).
Switching On and Off
To start the machine, press the On/Off switch 7.
To lock the On/Off switch, keep it pressed and additionally
push the lock-on button 6.
To switch off the machine, release the On/Off switch 7.
When the On/Off switch 7 is locked, press it first and then
release it.
Setting the Speed/Impact Rate (HD6K/HD46K LONG
LIFE)
The speed/impact rate of the switched on power tool can
be variably adjusted, depending on how far the On/Off
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switch 7/10 is pressed.
Light pressure on the On/Off switch 7/10results in low
speed/impact rate. Further pressure on the switch
increases the speed/impact rate.
Safety Clutch
If the tool insert becomes caught or jammed, the
drive to the drill spindle is interrupted. Because of the
forces that occur, always hold the power tool firmly
with both hands and provide for a secure stance.
If the power tool jams, switch the machine off and
loosen the tool insert. When switching the machine
on with the drilling tool jammed, high reaction torques
can occur.
4.2 Working Advice
Changing the Chiselling Position (HD)
The chisel SDS can be locked in different positions.
In this manner, the optimum working position can be set
for each application.
Insert the chisel into the tool holder.
Turn the mode selector switch 8
Turn the tool holder to the desired chiselling position.
Turn the mode selector switch 8 to the "chiseling" position.
The tool holder is now locked.
For chiselling, set the rotation direction to right rotation.
Switching On/Off: A (HD46K / MD5 K LONG LIFE)
To start the machine, press the On/Off switch 6 and keep
it depressed.
To switch off the machine, release the On/Off switch 6.
Switching On/Off: B (fig. 19).(MD8K LONG LIFE)
To start the machine, press the On/Off switch 6/7 at the
top ( I ) until it locks.
To switch off the machine, press the On/Off switch 6/7 at
the bottom (O) and release it.
For low temperatures, the power tool reaches the full
hammer/impact capacity only after a certain time.
5. Maintenance and Service
5.1 Maintenance and Cleaning
Before any work on the machine itself, pull the mains
plug.
For safe and proper working, always keep the machine
and ventilation slots clean.
A damaged dust protection cap should be changed
immediately. We recommend having this carried out
by an after-sales service.
Clean the tool holder 2 each time after using.
WARNING!
connecting a new 3-pin plug to the 2-wire
cable.
16
Important
instructions
for