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ENGLISH
Proper hand position requires one hand on the side
handle (e), with the other hand on the main handle (h).
Switching On and Off (fi g. 1)
To run the tool, press the variable speed switch (a).
The pressure exerted on the variable speed switch
determines the tool speed.
For continuous operation, press and hold down the
switch (a), press the lock-on button (b) and release
the switch.
To stop the tool, release the switch.
To stop the tool in continuous operation, press the
switch briefly and release it. Always switch off the
tool when work is finished and before unplugging.
General Tips for Drilling with
Diamond Core Bits
WARNING: Follow the core bit or
manufacturer's recommendations for
using the accessory.
WARNING: When using the machine in
handheld applications, we recommend
to assemble a centredrill into the core
bit to locate the periphery of the hole to
be drilled more accurately. When using
the machine in stationary applications,
i.e. on a stand, the use of a centredrill is
not necessary.
1. Assemble the centredrill into the core bit.
The centredrill is mounted into an adaptor fitted
between the spindle of the machine and the
core bit.
2. Place the centredrill on the spot and switch on
the machine.
3. Drill at low speed until the core penetrates the
surface approx. 5–10 mm.
4. Remove and unplug the machine.
5. Remove the centredrill from its holder.
6. Plug the machine in and insert the core bit into
the workpiece.
7. Continue drilling, increasing to full speed and
drill to the desired depth.
WARNING: Do not mix or stir
inflammable liquids labelled accordingly.
Dry Drilling
1. Connect the machine to an appropriate dust
extraction system.
2. Proceed as described above.
36
Wet Drilling
1. Connect the machine to an appropriate water
supply system.
2. Adjust the water flow as necessary.
3. Proceed as described above.
WARNING: If any water comes out
of the drainage hole at the gear neck,
stop the work immediately and have
the machine repaired by an authorised
repair agent.
Drill Stand
D21582K
1. Drilling with the stand is only allowed
downwards or horizontally.
2. The stand must be fixed, either by bolts or
vacuum device.
NOTE: When using bolts for the stationary
stand, use either Cat. No.: D212825 for
concrete or D215826 for masonry.
MAINTENANCE
Your D
WALT power tool has been designed to
E
operate over a long period of time with a minimum
of maintenance. Continuous satisfactory operation
depends upon proper tool care and regular cleaning.
WARNING: To reduce the risk of
injury, turn unit off and disconnect
machine from power source before
installing and removing accessories,
before adjusting or changing set-
ups or when making repairs. Be sure
the trigger switch is in the OFF position.
An accidental start-up can cause injury.
Regularly take the tool to an authorized repair
agent for inspection. This includes checking the
carbon brushes, topping up oil in the gearcase and
replacement of the gearcase sealing ring.
Troubleshooting
If your tool seems not to operate properly, follow
the instructions below. If this does not solve the
problem, please contact your repair agent.
Core bit does not cut
Material too hard for core bit
• Choose a more appropriate core bit
(with softer segments).
• Apply wet drilling when appropriate.
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