DeWalt D25303DH Guide D'utilisation page 2

DO NOT use under wet conditions or in presence of flammable liquids or gases.
The dust extraction system is an attachment for use with professional power tools.
DO NOT let children come into contact with the tool. Supervision is required when inexperienced
operators use this tool.
ASSEMBLY
WARNING: ALWAYS turn off tool and disconnect the tool from the power source
before making any adjustments or removing or installing attachments or accessories.
Such preventative safety measures reduce the risk of starting the tool accidentally.
Attaching and Removing the Dust Extraction System
TO ATTACH THE DUST EXTRACTION SYSTEM (FIG. 1–3, 5)
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. Hold tool with both
hands to maximize control.
1. Remove the drill bit, side handle and the depth adjustment rod, if attached to the rotary
hammer.
2. Attach supplied side handle (J) to the hammer.
3. Ensure the base release buttons are depressed and locked in the open position before
attempting to fit the dust extraction system to the rotary hammer.
4. Insert hammer into the extractor, ensuring that both the electrical connectors and side
handle support groove and locator align. The base released buttons will click into the closed
position when hammer is properly seated in the extractor.
TO REMOVE THE DUST EXTRACTION SYSTEM (FIG. 2)
To remove the dust extraction system, press the two extractor base release buttons (B) and lift
the rotary hammer off the duct extraction system.
OPERATION
WARNING: ALWAYS turn off tool and disconnect the tool from the power source
before making any adjustments or removing or installing attachments or accessories.
Such preventative safety measures reduce the risk of starting the tool accidentally.
WARNING: For your own safety, read the tool instruction manual before using any accessory.
Failure to heed these warnings may result in personal injury and serious damage to the tool and
the accessory. When servicing this tool, use only identical replacement parts.
WARNING: Do not use the tool without the filter in place.
Switch
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.
Setting the Drilling Depth (Fig. 1)
Press the depth adjustment button (F) on top of the front slider and move it to the desired drilling
depth. Release the button.
Adjusting the Drill Length (Fig. 1)
1. Insert the appropriate drill bit. The dust extractor head is designed for bits up to 5/8"
diameter.
2. Hold the dust extraction head (H) against a wall.
3. Push the tool to make the drill bit touch the surface.
4. Press the length adjustment button (G) on top of the back 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.
Emptying the Dust Collection Box (Fig. 4, 5)
WARNING: ALWAYS use eye protection (CAN/CSA Z94.3). All users and bystanders
must wear eye protection that conforms to ANSI Z87.1.
WARNING: ALWAYS use proper NIOSH/OSHA/MSHA respiratory protection when
performing this procedure.
CAUTION: Do not clean with water or compressed air.
The dust collection box (C) should be emptied as soon as the performance has noticeably
decreased.
1. Press the dust collection box release buttons (D) and pull the dust collection box away
from the dust extraction system. Once the catch mechanism is clear of the dust extraction
system the upper joint will also release allowing the dust collection box to be removed
completely.
2. To empty the dust collection box (C) position it over a suitable container to catch the dust
contained within it. Lift up the assembly release latch (P) to open the dust collection box,
separating the canister from the lid. Gently tapping the dust collection box will encourage
any dust trapped within the filter to also be removed. Once the filter lid and canister are
empty reattach them, ensuring the assembly release latch (P) is securely fastened. Refer to
figure 5.
3. To reattach the dust collection box to the dust extraction system first insert the rounded
profile of the upper joint into the recess on the dust extraction system. Pivot the dust
collection box down so that the release buttons click back into place. Refer to figure 4.
MAINTENANCE
WARNING: ALWAYS turn off tool and disconnect the tool from the power source
before making any adjustments or removing or installing attachments or accessories.
Such preventative safety measures reduce the risk of starting the tool accidentally.
Your dust collector has been designed to operate over a long period of time with a minimum
of maintenance. Continuous satisfactory operation depends on proper tool care and regular
cleaning. Empty the dust extractor periodically or when the performance has noticeably
decreased.
Replacing the Dust Collection Box Filter Assembly
(fig. 4, 5)
WARNING: Wear approved eye protection and approved dust mask when performing this
procedure.
NOTE: The filter should be replaced after every 100 to 120 cycles of use.
1. Press the dust collection box release buttons (D) and pull the dust collection box away
from the dust extraction system. Once the catch mechanism is clear of the dust extraction
system the upper joint will also release allowing the dust collection box to be removed
completely.
2. Lift up the release catch (P) to open the dust collection box, separating the box from the
assembly.
3. Discard dust collection box filter assembly (O) and replace with approved D
part.
4. Reattach the dust collection box to the dust extraction system first insert the rounded profile
of the upper joint into the recess on the dust extraction system. Pivot the dust collection box
down so that the release buttons click back into place.
Replacing the Dust Brush (Fig. 7)
WARNING: ALWAYS use eye protection (CAN/CSA Z94.3). All users and bystanders
must wear eye protection that conforms to ANSI Z87.1.
WARNING: Use of this tool can generate and/or disburse dust, which may cause serious and
permanent respiratory or other injury. Always use NIOSH/OSHA approved respiratory protection
appropriate for the dust exposure.
The dust brush will wear during use and will need to be replaced.
1. Push the snap-fit (S) at the back of the extraction head, and pull it out of the head holder.
2. Use a screwdriver to remove the dust brush (I) out of the extraction head.
3. Replace the dust brush with a new one.
4. Make sure that the open end of the dust brush is positioned to the centering pocket at the
extraction head.
FIG. 1
G
A
B
FIG. 2
FIG. 3
FIG. 4
FIG. 5
D
FIG. 6
WALT service
e
H
E
F
C
K
D
K
L
C
M
N
I
H
J
B
D
O
P