DeWalt D25303K Manual page 26

E N G L I S H
Hammer drilling (fig. A)
Drilling with a solid bit
• Set the mode selector switch (3) to the «hammer
drilling» position.
• Insert the appropriate drill bit. For best results
use high quality carbide-tipped bits.
• Adjust the side handle (9) as required.
• If necessary, set the drilling depth.
• Mark the spot where the hole is to be drilled.
• Place the drill bit on the spot and switch on the
tool.
• Always switch off the tool when work is finished
and before unplugging.
Drilling with a core bit
• Set the mode selector (3) to the «hammer drilling»
position.
• Adjust the side handle (9) as required.
• Insert the appropriate core bit.
• Assemble the centerdrill into the core bit.
• Place the centerdrill on the spot and press the
variable speed switch (1). Drill until the core
penetrates into the concrete approx. 1 cm.
• Stop drilling and remove the centerdrill. Place the
core bit back into the hole and continue drilling.
• 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.
• Always switch off the tool when work is finished
and before unplugging.
Rotary drilling (fig. A)
• Set the mode selector switch (3) to the "rotary
drilling" position.
• Depending on your tool, follow either of the
following instructions:
- Fit the chuck adapter/chuck assembly
(D25303K).
- Replace the tool holder with the chuck
(D25304K).
• Proceed as described for hammer drilling.
26
Never use standard chucks in the
hammer drilling mode.
Screwdriving (fig. A)
• Set the mode selector switch (3) to the "rotary
drilling" position.
• Select the direction of rotation.
• Depending on your tool, follow either of the
following instructions:
- Insert the special SDS-plus
adaptor for use with hexagonal screwdriver bits
(D25303K).
- Replace the tool holder with the chuck
(D25304K).
• Insert the appropriate screwdriver bit.
When driving slotted head screws always use
bits with a finder sleeve.
• Gently press the variable speed switch (1) to
prevent damage to the screw head. In reverse
(LH) rotation the tool speed is automatically
reduced for easy screw removal.
• When the screw is flush with the workpiece,
release the variable speed switch to prevent the
screw head from penetrating into the workpiece.
Chipping and chiselling (fig. A)
• Set the mode selector switch (3) to the
«hammering only» position.
• Insert the appropriate chisel and rotate it by hand
to lock it into one of 51 positions.
• Adjust the side handle (9) as required.
• Switch on the tool and start working.
• Always switch off the tool when work is finished
and before unplugging.
• Do not use this tool to mix or pump
easily combustible or explosive fluids
(benzine, alcohol, etc.).
• Do not mix or stir inflammable liquids
labelled accordingly.
Various types of SDS-plus
available as an option.
Consult your dealer for further information on the
appropriate accessories.
®
screwdriving
®
drill bits and chisels are