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DeWalt DWH304DH Guide D'utilisation page 7

Système de dépoussiérage avec filtre hepa

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WARNING: Do not use the tool without the filter
in place.
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.
Fig. F
Switch
The extraction system automatically starts when the rotary
hammer is turned on.
Since your dust extractor is mechanically powered by the
rotary hammer, continue running the tool after drilling
is complete 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
The filter cleaning mechanism is a feature that uses the
motor in the rotary hammer to force air through the HEPA
filter. Refer to Emptying the Dust Collection Box for
instructions on proper use.
Setting the Drilling Depth (Fig. A)
Press the depth adjustment button
slider and move it to the desired drilling depth. Release
the button.
Adjusting the Drill Length (Fig. A)
1. Insert the appropriate drill bit. The dust extractor head is
designed for bits up to 1" (25 mm) diameter.
2. Hold the dust extraction head
3. Push the tool to make the drill bit touch the surface.
4. Press the length adjustment button
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.
 6 
on top of the front
 8 
against a wall.
on top of the
 7 
Emptying the Dust Collection Box
(Fig. A, G, H)

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
 3 
should be emptied as soon as the
performance has noticeably decreased or is full.
1. Press the dust collection box release buttons 
and pull the dust collection box away from the dust
extraction system (Fig. G). 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
suitable container to catch the dust contained within
it. Lift up the assembly release latch 
dust collection box, separating the canister from the lid.
Gently tapping the dust collection box will encourage
any dust trapped within the HEPA filter to also be
removed. Once the filter lid and canister are empty
reattach them, ensuring the assembly release latch
is securely fastened. Refer to Figure H.
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 G.
4. With the dust collection box properly installed, depress
the filter cleaning mechanism
trigger on tool. Allow the system to run for 5 seconds
and release trigger. This should be done after every
emptying of the dust collection box.
Fig. G
10
4
English
 4 
 3 
position it over a
to open the
 16 
 16 
and squeeze
10
5

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