Maintenance - DeWalt D25223 Manual

Switching On and Off (fig. 1)
1. To run the tool, press the variable speed switch
(a). The pressure exerted on the variable speed
switch determines the tool speed.
2. To stop the tool, release the switch.
3. To lock the tool in off position, move the
forward/reverse slider (c) to the central position.
Hammerdrilling (fig. 1)
DRILLING WITH A SOLID BIT
1. Set the mode selector switch (d) to the
hammerdrilling position.
2. Insert the appropriate drill bit.
NOTE: For best results use high quality carbide-
tipped bits.
3. Adjust the side handle (i) as required.
4. If necessary, set the drilling depth.
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
1. Set the mode selector (d) to the hammerdrilling
position.
2. Adjust the side handle (i) as required.
3. Insert the appropriate core bit.
4. Assemble the centerdrill into the core bit.
5. Place the centerdrill on the spot and press the
variable speed switch (a). Drill until the core
penetrates into the concrete approx. 1 cm.
6. Stop drilling and remove the centerdrill. Place
the core bit back into the hole and continue
drilling.
7. 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 center drill completely
through the structure. Then drill the cored hole
halfway from each side.
8. Always switch off the tool when work is finished
and before unplugging.
Rotary Drilling (fig. 1)
1. Set the mode selector switch (d) to the rotary
drilling position.
2. Fit the chuck adapter/chuck assembly.
3. Proceed as described for hammerdrilling.
WARNING: Never use standard chucks
in the hammer drilling mode.
Screwdriving (fig. 1)
1. Set the mode selector switch (d) to the rotary
drilling position.
2. Select the direction of rotation.
3. Insert the special SDS Plus
adaptor for use with hexagonal screwdriver bits.
4. Insert the appropriate screwdriver bit. When
driving slotted head screws always use bits with
a finder sleeve.
5. Gently press the variable speed switch (a) to
prevent damage to the screw head. In reverse
(LH) rotation the tool speed is automatically
reduced for easy screw removal.
6. 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. 1)
1. Set the mode selector switch (d) to the
hammering only position.
2. Insert the appropriate chisel and rotate it by
hand to lock it into one of 51 positions.
3. Adjust the side handle (i) as required.
4. Switch on the tool and start working.
5. Always switch off the tool when work is finished
and before unplugging.
WARNING:
• 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.

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.
EN GL IS H
®
screwdriving
11