DeWalt DCD990 Bersetzt Von Den Originalanweisungen Seite 45

WARNING: To reduce the risk of
serious personal injury, ALWAYS hold
securely in anticipation of a sudden
reaction.
Proper hand position requires one hand on the
main handle (n), with the other hand on the side
handle (g).
Drill Operation (Fig. 4)
WARNING: To reduce the risk
of serious personal injury, turn
tool off and disconnect tool from
power source before making any
adjustments or removing/installing
attachments or accessories.
WARNING: To reduce the risk of
personal injury, ALWAYS ensure
workpiece is anchored or clamped
firmly. If drilling thin material, use a wood
"back-up" block to prevent damage to
the material.
1. Select the desired speed/torque range using
the gear shifter to match the speed and torque
to the planned operation. Set the torque
adjustment collar (e) to the drill symbol.
2. 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.
3. Always apply pressure in a straight line with the
bit. Use enough pressure to keep the drill bit
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.
5. IF DRILL STALLS, it is usually because it
is being overloaded. RELEASE TRIGGER
IMMEDIATELY, remove drill bit from work,
and determine cause of stalling. DO NOT
CLICK TRIGGER OFF AND ON IN AN
ATTEMPT TO START A STALLED DRILL –
THIS CAN DAMAGE THE DRILL.
6. Keep the motor running when pulling the bit
back out of a drilled hole. This will help prevent
jamming.
Screwdriver Operation (Fig. 3)
1. Select the desired speed/torque range using
the three-speed gear shifter (f) on the top of
the tool. If using the torque adjustment collar
(e), initially set the three-speed gear shifter to
speed 2 or 3. This ensures effective control over
the fastener allowing the screw to be seated
correctly and set to specification. Speed 1 will
provide the same clutching torque as speeds
2 and 3. However, for optimum performance
of the electronic clutch, speeds 2 and 3 are
preferred.
NOTE: Use the lowest torque setting (1) first
and increase the number through to the highest
setting (11) to seat the fastener at the desired
depth. The lower the number, the lower the
torque output.
2. Reset the torque adjustment collar (e) to the
appropriate number setting for the torque
desired. Make a few practice runs in scrap or
unseen areas to determine the proper position
of the torque adjustment collar.
NOTE: The torque adjustment collar may be set to
any number at any time.
Hammerdrill Operation (Fig. 5)
1. Select the desired speed/torque range using
the gear shifter to match the speed and torque
to the planned operation. Set the torque
adjustment collar (e) to the hammer symbol.
2. Select the high speed 3 setting by sliding the
gear shifter (f) back (away form the chuck).
3. When drilling, use just enough force on the
hammer to keep it from bouncing excessively.
Prolonged and too much force on the hammer
will cause slower drilling speeds and potential
overheating.
4. Drill straight, keeping the bit at a right angle to
the work. Do not exert side pressure on the bit
when drilling as this will cause clogging of the
bit flutes and a slower drilling speed.
5. When drilling deep holes, if the hammer speed
starts to drop off, pull the bit partially out of
the hole with the tool still running to help clear
debris from the hole.
6. For masonry, use carbide-tipped bits or
masonry bits. A smooth, even flow of dust
indicates the proper drilling rate.
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.
WARNING: To reduce the risk of
serious personal injury, turn tool
off and disconnect battery pack
before making any adjustments or
english
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