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Performing an Application (Fig. A)
WARNING: To reduce the risk of personal
injury, ALWAYS ensure workpiece is anchored or
clamped firmly.
WARNING: Always wait until the motor has come to
a complete standstill before changing the direction
of rotation.
Prior to performing work:
•
Set the speed selector
7
•
Install the appropriate bit or accessory into the
chuck. Refer to Installing a Bit or Accessory into a
Keyless Chuck.
WARNING:
•
Do not use this tool to mix or pump easily
combustible or explosive fluids (benzine,
alcohol, etc.).
•
Do not mix or stir flammable liquids
labeled accordingly.
Screwdriving (1–15)
Your tool has a clutch with adjustable torque for driving
and removing a wide array of fastener shapes and sizes. The
numbers 1–15 on the mode selection collar
set a torque range for screwdriving. The higher the number
on the collar, the higher the torque and the larger the
fastener which can be driven.
1. Turn the mode selection collar
desired position. Refer to Mode Selection.
2. Pull the trigger switch applying pressure in a straight
line with the bit until the fastener is seated at the
desired depth in the workpiece.
Recommendations for screwdriving
•
Start with lower torque settings, then advance to higher
torque settings to avoid damage to the workpiece
or fastener.
•
Make some practice runs in scrap or on unseen areas of
the workpiece to determine the proper position of the
mode selection collar.
Drilling
1. Turn the mode selection collar
Refer to Mode Selection.
2. Place drill bit in contact with the workpiece.
nOTE: Use sharp drill bit only.
3. Pull the trigger switch applying pressure in a straight
line with the bit until it reaches the desired depth.
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.
4. Keep the motor running when pulling the bit back out
of a drilled hole to prevent jamming.
Recommendations for Drilling
•
When drilling, always apply pressure in a straight line
with the bit, but do not push hard enough to stall the
motor or deflect the bit.
10
. Refer to Speed Selection.
6
are used to
6
to the
6
to the drill symbol.
•
iF ThE DRill sTAlls:
RElEAsE TRiggER sWiTCh iMMEDiATElY,
-
remove drill bit from work, and determine cause
of stalling.
DO nOT DEPREss TRiggER sWiTCh On AnD
-
OFF in An ATTEMPT TO sTART A sTAllED
DRill—This CAn DAMAgE ThE DRill.
To minimize stalling or breaking through the
-
material, reduce pressure on drill and ease the bit
through the last fractional part of the hole.
•
Large holes (5/16" to 1/2" [7.9 mm to 12.7 mm]) in steel
can be made easier if a pilot hole (5/32" to 3/16" [4 mm
to 4.8 mm]) is drilled first.
•
If drilling thin material or material that is prone to
splinter, use a wood "back-up" block to prevent damage
to the work piece.
Hammerdrilling
DCD709 Only
iMPORTAnT: Use carbide-tipped or masonry bits rated for
percussion drilling only.
1. Select the desired speed/torque range using the speed
selector
7
to match the speed and torque to the
planned operation. Turn the mode selection collar
the hammerdrill symbol.
2. Pull the trigger, applying just enough pressure on the
hammer to keep it from bouncing excessively or "rising"
off the bit.
Recommendations for hammerdrilling
•
Too much force will cause slower drilling speeds,
overheating, and a lower drilling rate.
•
A smooth even flow of material indicates the proper
drilling rate.
•
Drill straight, keeping the bit at a 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.
•
When drilling deep holes, if the hammer speed starts to
drop off, pull the bit partially out of the hole with tool
still running to help clear debris from the hole.
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 procedure.
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
6
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