DeWalt D25733

ENGLISH
24
E-Clutch® and Service Indicator LEDs (Fig. A)
Your rotary hammer has two LEDs
10
, indicating the
E-Clutch® (ADC) function and a service indicator. Refer to
the table for more information on LEDfunctionality.
LED Function Description
Red
(flashing)
Lock-on/Service
The red indicator LED
10
lights
up if the lock-on button
8
is used
in any mode except the chipping
mode or if there is a fault with
the tool or the brushes have
completely worn out
Red
(permanently on)
E-Clutch®
E-Clutch® is engaged.
Yellow
(permanently on)
Brush Service
The yellow brushwear indicator
LED
10
lights up when the
carbon brushes are nearly worn
out, indicating that the tool needs
servicing within the next 8 hours
ofuse.
Operation Modes (Fig. E)

WARNING: Do not select the operating mode when
the tool isrunning.

CAUTION: Never use in Rotary Drilling or Rotary
Hammering mode with a chisel bit in the bit holder.
Personal injury and damage to the the tool mayresult.
Your tool is equipped with a mode selector dial 
4
to
selectthe mode appropriate to desiredoperation.
Symbol Mode Application
Rotary
Hammering
Drilling into concrete
and masonry
Hammering
only
Lightchipping
Bit Adjustment
Chisel bit position
adjustment
To select an operating mode
1. Rotate the mode selector dial
4
so that the
arrow points to the symbol corresponding for the
desiredmode.
Fig. E
4
NOTE: The arrow on the mode selector dial
4
must be
pointing at a mode symbol 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 or to postion
the chiselbit.
Indexing the Chisel Position (Fig. A)
The chisel can be indexed and locked into 24
differentpositions.
1. Rotate the mode selector switch
4
until it points
towards the position.
2. Rotate the chisel in the desiredposition.
3. Set the mode selector switch
4
to the “Hammering
Only”position.
4. Twist the chisel until it locks inposition.
Performing an Application (Fig. A, F)

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Holder.
2. Using the mode selector dial
4
, selectthe mode
appropriate to desired application. Refer to
OperationModes.
3. Adjust the side handle
2
asnecessary.
Fig. F
2
4 1
4. Place the bit/chisel on the desiredlocation.
5. Depress the trigger switch
1
.
6. To stop the hammer, release theswitch.
Recommendations for Tool Operation
• Large (7,9 mm to 12,7 mm [ 5/16" to 1/2"]) holes in
steel can be made easier if a pilot hole (4 mm to 4,8 mm
[5/32" to 3/16"]) is drilledfirst.
• 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. A smooth even flow of material
indicates the proper drillingrate.
• If drilling thin material or material that is prone to
splinter, use a wood “back-up” block to prevent damage
to theworkpiece.