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ENGLISH
Regulating the Water Flow (Fig. 5)
The water tap (s) on the water hose can be adjusted
to regulate the flow of cooling water towards the
drill bit.
1. To reduce the flow, turn the tap clockwise.
2. To increase the flow, turn the tap
counterclockwise.
Connecting to a Dust Extractor
(Fig. 6)
These tools have a standard 1/2" bayonet fitting for
the dust extractor fitting (g).
1. Screw the adaptor (t) onto the fitting (g) and
tighten firmly.
2. Connect an appropriate dust extraction system
to the adaptor.
Prior to Operation
1. Mount the appropriate accessory.
2. Mark the spot where the hole is to be drilled.
OPERATION
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.
Instructions for Use
WARNING:
• Always observe the safety instructions
and applicable regulations.
• Be aware of the location of pipework
and wiring.
• Apply only a gentle pressure to
the tool. Excessive force does not
speed up drilling but decreases tool
performance and may shorten tool life.
• To reduce effects of vibration make
sure the environment temperature is
not too cold, machine and accessory
is well maintained and the workpiece
size is suitable for this machine.
Proper Hand Position (Fig. 1, 7)
WARNING: To reduce the risk of
serious personal injury, ALWAYS use
proper hand position as shown.
34
WARNING: To reduce the risk of
serious personal injury, ALWAYS hold
securely in anticipation of a sudden
reaction.
Proper hand position requires one hand on the side
handle (e), with the other hand on the main handle (h).
Switching On and Off (Fig. 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.
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