DeWalt D25722K Instruction Manual page 23

Hammerdrilling (Fig. 1)
To turn the tool on, press the on/off switch (A).
To stop the tool, release the switch.
Drilling with a Solid Bit (Fig. 1)
1. Insert the appropriate drill bit.
2. Set the mode selector switch (F) to the hammerdrilling position.
3. Set the electronic speed and impact control dial (G).
4. Fit and adjust the side handle (C).
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 (Fig. 1)
1. Insert the appropriate core bit.
2. Assemble the centerdrill into the core bit.
3. Set the mode selector switch (F) to the hammerdrilling position.
4. Turn the electronic speed and impact control dial (G) to a medium
or high speed setting.
5. Fit and adjust the side handle (C).
6. Place the centerdrill on the spot and switch on the tool. Drill until
the core penetrates into the concrete approximately 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 turn the tool off when work is finished and before
unplugging.
Chipping and Chiselling (Fig. 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 (F) to the hammering only position.
3. Set the electronic speed and impact control dial (G).
4. Fit and adjust the side handle (C).
5. Turn the tool on and start working.
6. Always turn the tool off when work is finished and before
unplugging.
MAINTENANCE
WARNING: To reduce the risk of injury, turn unit off and
disconnect tool from power source before installing and
removing accessories, before making any adjustments or
removing/installing attachments or accessories. An accidental
start-up can cause injury.
Your D WALT power tool has been designed to operate over a
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long period of time with a minimum of maintenance. Continuous
satisfactory operation depends upon proper tool care and regular
cleaning.
Lubrication
Your power tool requires no additional lubrication.
Brushes (Fig. 4)
The carbon brushes are not user-serviceable. Take the tool to an
authorized D WALT repair agent.
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The yellow brushwear indicator LED (P) lights up when the carbon
brushes are nearly worn out. After a further 8 hours of use or after
the brushes have completely worn out, the motor will automatically
be shut offf.
Tool maintenance needs to be carried out as soon as the red service
indicator (Q) lights up.
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