DeWalt D25303DH Original Instructions Manual page 8

English
Electrical Safety
The electric motor has been designed for one voltage only.
Always check that the power supply corresponds to the voltage
on the rating plate.
Your D WALT tool is double insulated in accordance
e
with EN60745; therefore no earth wire is required.
If the supply cord is damaged, it must be replaced only by
D WALT or an authorised service organisation.
e
Mains Plug Replacement
(U.K. & Ireland Only)
If a new mains plug needs to be fitted:
• Safely dispose of the old plug.
• Connect the brown lead to the live terminal in the plug.
• Connect the blue lead to the neutral terminal.

WARNING: No connection is to be made to the
earth terminal.
Follow the fitting instructions supplied with good quality plugs.
Recommended fuse: 13 A.
Using an Extension Cable
If an extension cable is required, use an approved 3–core
extension cable suitable for the power input of this tool (see
Technical Data).The minimum conductor size is 1.5 mm
maximum length is 30 m.
When using a cable reel, always unwind the cable completely.
ASSEMBLY AND ADJUSTMENTS

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. An accidental
start-up can cause injury.
Attaching and Removing the Dust Extraction
System

WARNING: To reduce the risk of personal injury, ALWAYS
operate the tool with the side handle properly installed
and securely tightened. Failure to do so may result in the
side handle slipping during tool operation and subsequent
loss of control.
To Attach the Dust Extraction System (Fig. A–C)
1. Remove the drill bit, side handle and the depth adjustment
rod, if attached to the rotary hammer.
2. Attach supplied side handle
3. Ensure the base release buttons
locked in the open position before attempting to fit the dust
extraction system to the rotary hammer.
4. Push the locking shoe 15
foot 17 . Make sure that the groove in the side handle collar
fits to the locator element
release buttons 2 will lock into to the screw bosses of the
rotary hammer foot 17 . The electrical connectors
6
; the
2
10 to the rotary hammer.
2 are depressed and
down with the rotary hammer
on the extractor. The base
12
14 in
the base of the rotary hammer will align with the electrical
connectors 13 in the extractor base.
To Remove the System
To remove the dust extraction system, press the two extractor
base release buttons 2 and lift the rotary hammer off the duct
extraction system (Fig. B).
OPERATION
Instructions for Use

WARNING: Always observe the safety instructions and
applicable regulations.

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. An accidental
start-up can cause injury.

WARNING: Always read and operate the tool as
instructed in the tool instruction 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.
Proper hand position requires one hand on the main handle of
the hammer and one hand on the side handle. The side handle
must be installed for proper use.
Switching On and Off
The extraction system automatically starts when the rotary
hammer is turned on.
Electronic Switch-off Delay
After turning the rotary hammer off, the extraction system will
run for a few seconds longer to vacuum the remaining dust
particles in the internal parts and collect the dust in the dust
collection box.
Filter Cleaning Mechanism (Fig. B)
The filter cleaning mechanism
motor in the extractor to force air through the HEPA filter. Refer
to Emptying the Dust Collector for instructions on proper use.
Setting the Drilling Depth (Fig. A)
Press the depth adjustment button
and move it to the desired drilling depth. Release the button.
Adjusting the Drill Length (Fig. A)
1. Insert the appropriate drill bit.
2. Hold the dust extraction head
3. Push the tool to make the drill bit touch the surface wall.
4. Press the length adjustment button
slider and move it to the desired length. Release the button.
5. Gently withdraw the tool assembly from the wall, taking
care that the spring-loaded mechanism does not release.
is a feature that uses the
19
6 on the front of the slider
8 against a wall.
7 on top of the back