DeWalt XR Li-Ion DCD991 Original Instructions Manual page 16

English
The belt hook (J) and magnetic bit holder (L) can be
be attached to either side of the tool using only the
screw (K) provided, to accommodate left- or right-
handed users. If the hook or magnetic bit holder is
not desired at all, it can be removed from the tool.
To move belt hook or magnetic bit holder, remove
the screw (K) that holds it in place then reassemble
on the opposite side. Be sure to securely tighten the
screw.
OPERATION
Instructions for Use
WARNING: Always observe the safety
instructions and applicable regulations.
WARNING: To reduce the risk of
serious personal injury, turn tool
off and disconnect battery pack
before making any adjustments or
removing/installing attachments or
accessories. An accidental start-up
can cause injury.
Proper Hand Position (Fig. 9)
WARNING: To reduce the risk of
serious personal injury, ALWAYS
use proper hand position as shown
in figure 9.
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 (R), 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.
14
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.