DeWalt DCD980 Guide D'utilisation page 13

Drilling (Fig. D)
NOTICE: 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 7 to match the speed and torque to the
planned operation. Set the mode control collar
drill symbol.
2. Use sharp drill bits only. 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 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. 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. RElEAsE TRiggER iMMEDiATElY,
remove drill bit from work, and determine cause of
stalling. DO nOT DEPREss TRiggER OFF AnD On 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.
Screwdriving (Fig. E)
1. Select the desired speed/torque range using the three-
speed gear shifter 7 on the top of the tool to match the
speed and torque to the planned application. Initially
set the torque adjustment collar
ensure the fastener is set to your specification.
nOTE: Use the lowest torque setting required to
seat the fastener at the desired depth. The lower the
number, the lower the torque output.
2. Rotate the mode control collar
aligned with the arrow.
3. Make a few practice runs in scrap or unseen areas of
the workpiece to determine the proper position of the
torque adjustment collar. Reset the torque adjustment
collar 5 to the appropriate number setting for the
torque desired.
4. Always start with lower torque settings, then advance
to higher torque settings to avoid damage to the
workpiece or fastener.
nOTE: The torque adjustment collar may be set to any
number at any time. However, the torque adjustment collar
is only engaged during screwdriving mode and not in drill
and hammerdrill modes.
5 to the
5 at a lower setting to
6 so the screw symbol is
Hammerdrilling (Fig. F)
1. Select the desired speed/torque range using the
gear shifter to match the speed and torque to the
7
planned operation. Set the mode control collar
hammer symbol.
iMPORTAnT: Use carbide-tipped or masonry bits rated
for percussion drilling only.
2. Drill with just enough force on the hammer to keep
it from bouncing excessively or "rising" off the bit.
Too much force will cause slower drilling speeds,
overheating, and a lower drilling rate.
3. 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.
4. 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.
nOTE: A smooth, even flow of dust from the hole indicates
proper drilling rate.
MAINTENANCE

WARNING: To reduce the risk of serious personal
injury, turn unit off and remove the battery pack
before making any adjustments or removing/
installing attachments or accessories. An
accidental start-up can cause injury.
Cleaning

WARNING: Blow dirt and dust out of all air vents with
clean, dry air at least once a week. To minimize the risk
of eye injury, always wear ANSI Z87.1 approved eye
protection when performing this.

WARNING: Never use solvents or other harsh
chemicals for cleaning the non-metallic parts of
the tool. These chemicals may weaken the plastic
materials used in these parts. Use a cloth dampened
only with water and mild soap. Never let any liquid
get inside the tool; never immerse any part of the tool
into a liquid.
Accessories

WARNING: Since accessories, other than those
offered by D WALT, have not been tested with this
e
product, use of such accessories with this tool could be
hazardous. To reduce the risk of injury, only D
recommended accessories should be used with
this product.
Recommended accessories for use with your tool
are available at extra cost from your local dealer or
authorized service center. If you need assistance in
locating any accessory, please contact D
Tool Co., 701 East Joppa Road, Towson, MD 21286, call
1-800-4-D WALT (1-800-433-9258) or visit our website:
e
www.dewalt.com.
English
5 to the
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WALT Industrial
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