User Manual

10
ENGLISH
Proper Hand Position (Fig. D)

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
5
,
with the other hand on the side handle
2
.
Operation Modes (Fig. A)

WARNING: Do not select the operating mode when the
tool isrunning.
Your tool is equipped with amode selector switch
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
• Rotate the mode selector dial so that the arrow points to the
symbol corresponding with the desiredmode.
NOTE: The mode selector switch
4
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.
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)

WARNING: TO REDUCE THE RISK OF PERSONAL
INJURY, ALWAYS ensure workpiece is anchored or
clamped firmly. If drilling thin material, use awood
“backup” 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.
Switching On and Off (Fig. A)
To turn the tool on, depress the trigger switch
1
.
To stop the tool, release the triggerswitch.
Drilling with a Solid Bit (Fig. A)
1. Insert the appropriate drillbit.
2. Set the mode selector switch
4
to the
hammerdrillingposition.
3. Set the electronic speed and impact control dial
9
.
4. Fit and adjust the side handle
2
.
5. Mark the spot where the hole is to bedrilled.
6. Place the drill bit on the spot and switch on thetool.
7. Always switch off the tool when work is finished and
beforeunplugging.
Drilling with a Core Bit (Fig. A)
1. Insert the appropriate corebit.
2. Assemble the centerdrill into the corebit.
3. Set the mode selector switch
4
to the
hammerdrillingposition.
4. Turn the electronic speed and impact control dial
9
to
amedium or high speedsetting.
5. Fit and adjust the side handle
2
.
6. Place the centerdrill on the spot and switch on the tool. Drill
until the core penetrates into the concrete approximately
1cm.
7. Stop the tool and remove the centerdrill. Place the core bit
back into the hole and continuedrilling.
8. When drilling through astructure thicker than the depth of
the core bit, break away the round cylinder of concrete or
core inside the bit at regularintervals.
To avoid unwanted breaking away of concrete around
the hole, first drill ahole the diameter of the centerdrill
completely through the structure. Then drill the cored hole
halfway from eachside.
9. Always turn the tool off when work is finished and
beforeunplugging.
Chipping and Chiselling (Fig. A)
1. Insert the appropriate chisel and rotate it by hand to lock it
into one of 24positions.
2. Set the mode selector switch
4
to the hammering
onlyposition.
3. Set the electronic speed and impact control dial
9
.
4. Fit and adjust the side handle
2
.
5. Turn the tool on and startworking.
6. Always turn the tool off when work is finished and
beforeunplugging.
MAINTENANCE
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.

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. Be sure the
trigger switch is in the OFF position. An accidental start-up
can causeinjury.