DeWalt DCH416 User Manual

11
ENGLISH
Replacing the Dust Brush (Fig.H)

WARNING: Wear approved eye protection and
approved dust mask when performing thisprocedure.
The dust brush will wear during use and will need to be
replaced at the same time as thefilter.
1. Push the snap‑fit button
26
, and pull the dust extraction
head
27
out of the headholder.
2. Insert the new extraction head back into the head holder.
The centering pin will stick into the open end of the dust
brush and secure it inplace.
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.
Your DeWALT power tool has been designed to operate
over a long period of time with a minimum of maintenance.
Continuous satisfactory operation depends upon proper tool
care and regular cleaning.
‑ To select forward rotation, press the for ward/re verse
control button on the right side of thetool.
‑ To select reverse, press 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.
6. Depress the trigger switch
1
. The farther you depress
the trigger switch, the faster the tool will operate. For
maximum tool life, use variable speed only for starting
holes orfasteners.
NOTE: Depending on your tool, depressing the trigger
switch activates a worklight
14
designed to illuminate
the immediate work surface. The worklight will
automatically turn off 20seconds after the trigger switch
isreleased.

WARNING:
• Do not use this tool to mix or pump easily
combustible or explosive fluids (benzine, alcohol,
etc.).
• Do not mix or stir inflammable liquids
labelledaccordingly.
Operation Modes (Fig.A)

WARNING: Do not select the operating mode when
the tool isrunning.
Your tool is equipped with a mode selector dial 
3
to
selectthe mode appropriate to desiredoperation.
Symbol Mode Application
Rotary Drilling
Screwdriving
Drilling into steel, wood
andplastics
Rotary
Hammering
Drilling into concrete and
masonry
Hammering
only
Lightchipping
To Select an Operating Mode
1. Depress the mode selector release button
4
.
2. Rotate the mode selector dial
3
so that the arrow points
to the symbol corresponding with the desiredmode.
NOTE: The mode selector dial
3
must be in rotary drilling,
rotary hammering or hammering only mode at all times.
There are no operable positions inbetween. It may be
necessary to briefly run the motor after having changed
from 'hammering only' to 'rotary' modes in order to align
thegears.
Performing an Application (Fig.A)

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.

WARNING: Always wait until the motor has come to
a complete standstill before changing the direction
ofrotation.
1. Choose and install the appropriate chuck, adapter, and/or
bit onto to the tool. Refer to Bit and BitHolders.
2. Using the mode selector dial
3
, selectthe mode
appropriate to desired application. Refer to
OperationModes.
3. Adjust the side handle
6
asrequired.
4. Place the bit/chisel on the desiredlocation.
5. Select the direction ofrotation using the forward/reverse
button
2
. When changing the position of the control
button, be sure the trigger isreleased and motor has
come to a complete stop.
Overload Clutch
In case of jamming of a drill bit, the drive to the drill spindle
is interrupted by the overload clutch. Due to the resulting
forces, always hold the tool with both hands and take a
firmstance. After the overload, release and depress the
trigger to re‑engagedrive.

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.
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 only with
water and mild soap. Never let any liquid get inside the
tool; never immerse any part of the tool into aliquid.

DeWalt DCH416 Specifications

General

Brand	DeWalt
Model	DCH416
Category	Rotary Hammer
Language	English