DeWalt DC745 Manual De Instrucciones página 10

1. Use sharp drill bits only. For WOOD,
use the low speed setting and twist drill
bits, spade bits, power auger bits, or
hole saws. For mETAL, use the low
speed setting and steel twist drill bits or
hole saws. For mASONRY, such as
brick, cement, cinder block, etc., use
carbide-tipped bits rated for percussion
drilling. Use low speed for bits greater
than 10 mm.
2. 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.
3. 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.
CAUTION: 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.
4. 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 ClICk TRIggER oN AND oFF IN AN ATTEMPT
To sTART A sTAllED DRIll — THIs CAN DAMAgE THE
DRIll.
5. To minimize stalling or breaking through the material, reduce
pressure on drill and ease the bit through the last fractional part
of the hole.
6. Keep the motor running when pulling the bit back out of a drilled
hole. This will help prevent jamming.
7. 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.
Hammerdrill operation (fig. 5)
FIG. 4
DRILLING
1. Turn the collar (C) to the hammerdrill symbol.
2. Select the high speed setting by sliding the selector back (away
C
3. Drill with just enough force on the hammer to keep it from
4. Drill straight, keeping the bit at a
5. When drilling deep holes, if the
NoTE: A smooth, even flow of dust from the hole indicates proper
drilling rate.
Screwdriver operation (fig. 6)
1. Select the desired speed/torque range using the dual range
2. Turn the torque adjustment collar to
3. Insert the desired fastener accessory
9
from the chuck).
IMPoRTANT: Use carbide-tipped or masonry bits only.
bouncing excessively or "rising" off the bit. Too much force will
cause slower drilling speeds, overheating and lower drilling
rate.
right angle to the work. Do not exert
side pressure on the bit when drillling
as this will cause clogging of the bit
flutes and a slower drilling speed.
hammer speed starts to drop off, pull
the bit partially out of the hole with
tool stil running to help clear debris
from the hole.
gear selector to match the speed and torque of the planned
operation.
the desired position. Lower numbers
indicate lower torque settings; higher
numbers indicate higher
settings.
into the chuck as you would any drill
bit.
FIG. 5
C
HAmmERDRILLING
FIG. 6
torque
C
SCREWDRIVING