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DeWalt D25730 Manual

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ENGLISH
29
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 (j), with the other hand on the main
handle (m).
Switching On and Off (fi g. 1)
The lock-on button (b) allows the on/off switch (a)
to be locked on in chiselling mode only. If the lock-
on button is activated in drilling mode, as a safety
feature the tool will switch off automatically.
To switch on the tool, press the on/off switch (a).
For continuous operation, press and hold down the
switch (a), slide the lock-on button (b) upwards 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.
Hammerdrilling
1. To switch on the tool, press the on/off
switch (a).
2. To stop the tool, release the switch.
Drilling with a Solid Bit (fi g. 1)
1. Insert the appropriate drill bit.
2. Set the mode selector switch (g) to the
hammerdrilling position.
3. Set the electronic speed and impact control
dial (c).
4. Fit and adjust the side handle (j).
5. Mark the spot where the hole is to be drilled.
6. Place the drill bit on the spot and switch on the
tool.
7. Always switch off the tool when work is finished
and before unplugging.
Drilling with a Core Bit (fi g. 1)
1. Insert the appropriate core bit.
2. Assemble the centerdrill into the core bit.
3. Set the mode selector switch (g) to the
hammerdrilling position.
4. Turn the electronic speed and impact control
dial (c) to a medium or high speed setting.
5. Fit and adjust the side handle (j).
6. Place the centerdrill on the spot and switch on
the tool. Drill until the core penetrates into the
concrete approx. 1 cm.
7. Stop the tool and remove the centerdrill. Place
the core bit back into the hole and continue
drilling.
8. When drilling through a structure thicker than
the depth of the core bit, break away the round
cylinder of concrete or core inside the bit at
regular intervals.
To avoid unwanted breaking away of concrete
around the hole, first drill a hole the diameter of
the centerdrill completely through the structure.
Then drill the cored hole halfway from each side.
9. Always switch off the tool when work is finished
and before unplugging.
Chipping and Chiselling (fi g. 1)
1. Insert the appropriate chisel and rotate it by
hand to lock it into one of 24 positions.
2. Set the mode selector switch (g) to the
hammering only position.
3. Set the electronic speed and impact control
dial (c).
4. Fit and adjust the side handle (j).
5. Switch on the tool and start working.
6. Always switch off the tool when work is finished
and before unplugging.
MAINTENANCE
Your DEWALT power tool has been designed to
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.
This machine is not user-serviceable. Take the
tool to an authorised DEWALT repair agent after
approximately 150 hours of use. If problems occur
before this time contact an authorised DEWALT
repair agent.
Brushes (fi g. 2)
The yellow brushwear indicator LED (e) lights up
when the carbon brushes are nearly worn out.
… 31 …


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