Filter Care - DeWalt DWV901L Series Original Instructions Manual

To Convert Back to Dry Vacuum
Operation (Fig. A)
1. Empty Canister, refer to To Empty Canister instructions.
2. Place canister upside down position until dry. DO NOT use
wet canister for dry pick up.
3. Place vacuum head 4 on a level surface until dry.
4. Reinstall filters when vacuum head is dry. See Filters
under Maintenance.
5. When canister is dry place the vacuum head
canister and secure it by closing the canister latches
Shut Down/Transportation (Fig. A)
1. Turn on/off control switch
2. Unplug the unit.
3. Store the power cord wrapping it around the top handle/
2
cord wrap 1 as shown.
4. When transporting in vehicles, secure the machine.
MAINTENANCE
Your D WALT appliance has been designed to operate over
e
a long period of time with a minimum of maintenance.
Continuous satisfactory operation depends upon proper
appliance care and regular cleaning.

WARNING: To reduce the risk of injury, turn
appliance off and disconnect appliance from power
source before installing and removing accessories,
before adjusting or changing set-ups or when
making repairs. An accidental start-up can cause injury.

WARNING: For user servicing, the machine must be
dismantled, cleaned and serviced, as far as is reasonably
practicable, without causing risk to the maintenance staff
and others. Suitable precautions include, decontamination
before dismantling, provision for local filtered exhaust
ventilation where the machine is dismantled, cleaning of
the maintenance area and suitable personal protection.
• The manufacturer, or an instructed person, shall
perform a technical inspection at least annually,
consisting of, for example, inspection of the filter for
damage, air tightness of the machine and proper
function of the control mechanism.
• When carrying out service or repair operations, all
contaminated items which cannot be satisfactorily
cleaned, are to be disposed of; such items shall be
disposed of in impervious bags in accordance with
any current regulation for the disposal of such waste.
• For dust extractors it is necessary to provide for an
adequate air change rate L in the room if the exhaust
air is returned to the room.
(NOTE: Reference to National Regulations
is necessary.)
4 onto the
5 .
3 to the OFF position.
Filter (Fig. A, H, I)

Filter care

The filters included with this vacuum are long life filters. To be
effective in minimizing dust recirculation, the filters MUST be
installed correctly and in good condition.

WARNING: Appropriate personal protective equipment
like dust mask and gloves should be used while handling
the filters.
To Remove Filters
1. Turn on/off/tool control switch
and unplug cord from outlet.
2. Release canister latches 5
from canister. Place vacuum head on a level surface
upside down.
3. Turn each filter 9 counterclockwise by gripping it on the
plastic end cover as shown, and carefully remove from
head, ensuring debris does not fall into mounting hole.
nOTE: Use care to not damage filter material.
4. If the bottom side of the vacuum head
be cleaned, use a cloth dampened with water and
mild soap and allow it to dry. Dispose of cloth in an
appropriate container.
5. Inspect filters for wear, tears or other damage.
nOTE: If there is any doubt on the condition of the filters
they MUST be replaced. DO NOT continue use if filters
are damaged.

WARNING: Never use compressed air or a brush to clean
filters, otherwise damage to the filter membrane will occur
which will allow dust to pass through the filter. If needed,
gently tap against a hard surface or rinse with room
temperature water and let air dry. Cleaning of the filters
is typically unnecessary, even if the filter is covered with
dust. The automatic filter cleaning system will maintain
maximum performance and continue to function. If visual
damage to the filter membrane exists, replace filters. Filters
typically last between six and twelve months depending
on use and care.
To install Filters
1. Ensure filter seal 20 is in place and is secure.
2. Line up filter threads to vacuum head threads and using
21
moderate force, turn filter clockwise until tight.
nOTE: Use care to not damage filter material.
3. Place the vacuum head 4
by closing the canister latches
Lubrication
Your appliance requires no additional lubrication.
English
to the OFF position ( )
3
and remove vacuum head 4
4 needs to
onto the container and secure it
.
5
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