DeWalt D25303DH Original Instructions Manual page 17

ASSEMBLY AND ADJUSTMENTS

WARNING: To reduce the risk of serious personal
injury, turn tool off and disconnect battery pack or
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.
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4. Push the locking shoe
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foot . 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
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rotary hammer foot . The electrical connectors
the base of the rotary hammer will align with the electrical
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connectors in the extractor base.
To Remove the System
To remove the dust extraction system, press the two extractor
2
base release buttons and lift the rotary hammer off the duct
extraction system (Fig. B).
OPERATION

WARNING: To reduce the risk of serious personal
injury, turn tool off and disconnect battery pack or
power source before making any adjustments or
removing/installing attachments or accessories. An
accidental start-up can cause injury.

WARNING: Always observe the safety instructions and
applicable regulations.

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.
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to the rotary hammer.
2
are depressed and
down with the rotary hammer
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on the extractor. The base
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in
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.
Emptying the Dust Collector (Fig. B, D, E)

WARNING: Wear approved eye protection and approved
dust mask when performing this procedure.
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The dust collector should be emptied as soon as the
performance has noticeably decreased.
1. Press the dust collection box release buttons
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
suitable container to catch the dust contained within it. Lift
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up the release catch 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 release catch
securely fastened. Refer to Figure E.
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 D.
4. With the dust collection box properly installed, depress the
filter cleaning mechanism
Allow the system to run for 5 seconds and release trigger.
This should be done after every emptying of the dust
collection box.
EngLIsh
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is a feature that uses the
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on the front of the slider
8 against a wall.
7
on top of the back
4
and pull the
3
position it over a
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and squeeze trigger on tool.
is
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