DeWalt DCH263 Manual De Instrucciones página 39

Proper hand position requires one hand on the mounted
side handle 1 , with the other hand on the main handle
Fig. H
1
Operation Modes (Fig. I)

WARNING: Do not select the operating mode when
the tool is running.

CAUTION: Never use in Drilling or Hammerdrilling
mode with a chisel bit in the bit holder. Personal injury
and damage to the the tool may result.
Your tool is equipped with a mode selector dial
select the mode appropriate to desired operation.
symbol Mode
Hammerdrilling
Hammering
only
Drilling
To Select an Operating Mode (Fig. I)
• Press the mode selector button
selector dial so that the arrow points to the symbol
4
corresponding for the desired mode.
Fig. I
NoTE: The arrow on the mode selector dial
pointing at a mode symbol at all times. There are no
operable positions in between. It may be necessary to briefly
run the motor after having changed from 'hammering only'
to 'rotary' modes in order to align the gears or to postion
the chisel bit.
6 .
6
4 to
application
Drilling into concrete
and masonry
Light chipping
Drilling into metal,
wood and masonry
and rotate the mode
5
4
5
must be
4
Drilling (Fig. I)

WARNING: To reduce the risk of personal injury,
ALWAYS operate the tool with the side handle
properly installed. Failure to do so may result in
the side handle slipping during tool operation and
subsequent loss of control. Hold tool with both hands
to maximize control.
NOTICE: If drilling thin material, use a wood
"back-up" block to prevent damage to the material.
1. Press the mode selector button
selector dial 4 to the drilling symbol.
2. Use sharp drill bits only. For wood, use twist bits,
spade bits, power auger bits or hole saws. For metal,
use high-speed steel twist drill bits or hole saws. Use a
cutting lubricant when drilling metals. The exceptions
are cast iron and brass which should be drilled dry. For
masonry, such as brick, cement, cinder block, etc., use
carbide-tipped bits rated for percussion drilling.
3. Always apply pressure in a straight line with the bit. Use
enough pressure to keep drill biting, but do not push
hard enough to stall the motor or deflect the bit.
4. Hold tool firmly with both hands to control the twisting
action of the drill. If model is not equipped with side
handle, grip drill with one hand on the handle and one
hand on the battery pack.

WARNING: Drill may stall if overloaded causing a
sudden twist. Always expect the stall. Grip the drill
firmly to control the twisting action and avoid injury.
5. IF DRILL STALLS, it is usually because it is being
overloaded or improperly used. RELEASE TRIGGER
IMMEDIATELY, remove drill bit from work, and
determine cause of stalling. DO NOT depress TRIGGER
ON AND OFF IN AN ATTEMPT TO START A STALLED
DRILL—THIS CAN DAMAGE THE DRILL.
6. To minimize stalling or breaking through the material,
reduce pressure on drill and ease the bit through the
last fractional part of the hole.
7. Keep the motor running when pulling the bit back out
of a drilled hole. This will help prevent jamming.
8. With variable speed drills there is no need to center
punch the point to be drilled. Use a slow speed to start
the hole and accelerate by squeezing the trigger harder
when the hole is deep enough to drill without the bit
skipping out.
Drilling in Metal
A SDS PLUS to round shank adaptor chuck is required.
Ensure that tool is in drill-only mode. Start drilling with
slow speed and increase to full power while applying firm
pressure on the tool. A smooth even flow of metal chips
indicates the proper drilling rate. Use a cutting lubricant
when drilling metals. The exceptions are cast iron and brass
which should be drilled dry.
NoTE: Large (7,9 mm to 12,7 mm [5/16" to 1/2"]) holes in
steel can be made easier if a pilot hole (4 mm to 4,8 mm
[5/32" to 3/16"]) is drilled first.
ENGlIsH
and rotate the mode
5
37