DeWalt DCD777 - Tool Operation Controls; Speed Selection (Fig. A); Mode Selection (Fig. A); OPERATION

ENGLISH
9
To select, rotate the collar until the desired symbol aligns
with thearrow.
Symbol Mode
Drilling
1–15 Screwdriving (higher number = greater torque)
Hammerdrilling
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
10
into the tool handle, align the
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
11
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.
Fig. E
10
11
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.
Proper hand position requires one hand on the main
handle
12
and one hand on the battery pack. Hold tool
firmly with both hands to control the twisting action of
thedrill.
Fig. F
12
Variable Speed Trigger and Forward/
Reverse Control Button (Fig. A)
The drill is turned on and off by pulling and releasing
the variable speed trigger
1
. The farther the trigger is
depressed, the higher the speed of the drill. Your tool is
equipped with a brake. The chuck will stop as soon as the
trigger switch is fullyreleased.
A forward/reverse control button
2
determines the
rotational direction of the tool and also serves as a
lock-offbutton.
• To select forward rotation, release the trigger and
depress the forward/reverse control button on the right
side of the tool.
• To select reverse, release the trigger and depress the
forward/reverse control button on the left side of
thetool.
NOTE: The center position of the control button locks the
tool in the off position. When changing the position of the
control button, be sure the trigger is released.
NOTE: Continuous use in variable speed range is not
recommended. It may damage the switch and should
beavoided.
NOTE: The first time the tool is run after changing the
direction of rotation, you may hear a click on start up. This is
normal and does not indicate a problem.
Worklight (Fig. A)
There is a worklight
5
located above the trigger switch. The
worklight is activated when the trigger switch is depressed,
and will automatically turn off approximately 20 seconds
after the trigger switch is released. If the trigger switch
remains depressed, the worklight will remainon.
NOTE: The worklight is for lighting the immediate work
surface and is not intended to be used as aflashlight.
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
4
. Refer to Speed Selection.
• 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.