Wall Mounting; Operation; Installing And Removing The Battery Pack - DeWalt DCD791 Instruction Manual

ENGLISH
Charger Cleaning Instructions

WARNING: Shock hazard. Disconnect the charger
from the AC outlet before cleaning. Dirt and grease
may be removed from the exterior of the charger using
a cloth or soft non-metallic brush. Do not use water or
any cleaning solutions.

Wall Mounting

Some D WALT chargers are designed to be wall mountable
e
or to sit upright on a table or work surface. If wall mounting,
locate the charger within reach of an electrical outlet, and
away from a corner or other obstructions which may impede
air flow. Use the back of the charger as a template for the
location of the mounting screws on the wall. Mount the
charger securely using drywall screws (purchased separately)
at least 1" (25.4 mm) long, with a screw head diameter of
0.28–0.35" (7–9 mm), screwed into wood to an optimal
depth leaving approximately 7/32" (5.5 mm) of the screw
exposed. Align the slots on the back of the charger with the
exposed screws and fully engage them in the slots.
SAVE THESE INSTRUCTIONS FOR
FUTURE USE
ASSEMBLY AND ADJUSTMENTS

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.
Installing a Bit or Accessory into a Keyless
Chuck (Fig. D)

WARNING: Do not attempt to tighten drill bits (or
any other accessory) by gripping the front part of the
chuck and turning the tool on. Damage to the chuck
and personal injury may result. Always lock off trigger
switch and disconnect tool from power source when
changing acces sories.

WARNING: Always ensure the bit is secure before
starting the tool. A loose bit may eject from tool
causing possible personal injury.
To insert a drill bit or other accessory, follow these steps.
1. Turn tool off and remove battery pack.
2. Grasp the black sleeve of the chuck with one hand
and use the other hand to secure the tool. Rotate the
sleeve counterclockwise far enough to accept the
desired accessory.
3. Insert the accessory about 3/4" (19 mm) into the
chuck 6 and tighten securely by grasping and rotating
the chuck sleeve 13 clockwise with one hand while
holding the tool with the other. When the chuck is
nearly tightened you will hear a clicking sound. After
12-14 clicks the chuck is securely tightened around
the accessory. Your tool is equipped with an automatic
spindle lock mechanism. This allows you to open and
close the chuck with one hand.
28
Be sure to tighten chuck with one hand on the chuck sleeve
and one hand holding the tool for maximum tightness.
To release the accessory, repeat steps 1 and 2 above.
Mode Selection (Fig. A)
The mode selection collar 3
the correct operating mode depending upon the
planned application.
To select, rotate the collar until the desired symbol aligns
with the arrow.

WARNING: When the mode selection collar is in the
drill or hammerdrill positions, the drill will not clutch.
The drill may stall if overloaded, causing a sudden twist.
Symbol
1-15
Screwdriving (higher number = greater torque)
Speed Selection (Fig. A)
The tool features two speed settings for greater versatility.
NOTE: Do not change speeds when the tool is running.
Always allow the tool to come to a complete stop before
changing speed.
1. To select speed 1 (higher torque setting), slide the speed
selector 4 back (away from the chuck).
2. To select speed 2 (lower torque setting), slide the speed
selector forward (towards the chuck).
If the tool does not change speeds, confirm that the speed
selection switch is completely engaged in the forward or
back position.

OPERATION


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.

Installing and Removing the Battery Pack

(Fig. E)
NOTE: For best results, make sure your battery pack is
fully charged.
To install the battery pack 11
battery pack with the rails inside the tool's handle and slide
it into the handle until the battery pack is firmly seated in the
tool and ensure that it does not disengage.
To remove the battery pack from the tool, press the release
button 2 and firmly pull the battery pack out of the tool
handle. Insert it into the charger as described in the charger
section of this manual.
Proper Hand Position (Fig. F)

WARNING: To reduce the risk of serious personal
injury, ALWAYS use proper hand position as shown.

WARNING: To reduce the risk of serious personal
injury, ALWAYS hold securely in anticipation of a
sudden reaction.
can be used to select
Mode
Drilling
Hammerdrilling
into the tool handle, align the