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Dewalt DW792 20-gallon Wet/Dry Vacuum User Manual

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1-800-4-DEWALT (1-800-433-9258)
Before any use, be sure everyone using this appliance reads and understands all safety
instructions and other information contained in this manual.
Save these instructions and review frequently prior to use and in instructing others.
WARNING: When using an electric appliance, basic safety precautions should always be fol -
lowed to reduce risk of fire, electric shock, and personal injury, including the following:
WARNING: To reduce the risk of fire, electric shock, or injury:
DO NOT leave appliance when plugged in. Unplug from outlet when not in use and before
s e r v i c i n g .
DO NOT expose to rain, Store indoors.
DO NOT allow appliance to be used as a toy. Close attention is necessary when used by or
near children.
Use only as described in this manual. Use only manufacturer's recommended attachments.
DO NOT use with damaged cord or plug. If appliance is not working as it should, has been
dropped, damaged, left outdoors, or dropped into water, return it to a service center.
DO NOT pull or carry by cord, use cord as a handle, close a door on cord, or pull cord
around sharp edges or corners. Do not run appliance over cord. Keep cord away from heat -
ed surfaces.
DO NOT unplug by pulling on cord. To unplug, grasp the plug, not the cord.
DO NOT handle plug or appliance with wet hands.
DO NOT put any objects into openings. Do not use with any opening blocked; keep free of
dust, lint, hair and everything that may reduce air flow.
K E E P h a i r, loose clothing, fingers, and all parts of body away from openings and moving
p a r t s .
TURN OFF all controls before unplugging.
USE EXTRA CARE when cleaning on stairs.
DO NOT use to pick up flammable or combustible liquids such as gasoline or use in areas
where they may be present.
DO NOT pick up anything that is burning or smoking, such as cigarettes, matches or hot
a s h e s .
S TORE IDLE TOOLS. When not in use, the appliance should be stored in a dry, high or
locked up place -- out of reach of children.
M A I N TAIN TO O L WITH CARE. Keep fan area clean for best and safest performance.
Follow instructions for proper maintenance.
DO NOT attempt to repair the appliance. To assure product safety and reliability, repairs,
maintenance, and adjustments should be performed by authorized DeWA LT service cen -
t e r s .
DO NOT use without dust bag and/or filters in place.
CONNECT TO A P R O P E R LY GROUNDED OUTLET ONLY. See grounding instructions.
Grounding Instructions
This appliance must be grounded. If it should malfunction or break down, grounding provides
a path of least resistance for electric current to reduce the risk of electric shock. This appli-
ance is equipped with a cord having an equipment grounding conductor and grounding plug.
The plug must be inserted into an appropriate outlet that is properly installed and grounded in
accordance with all local codes and ordinances.
WARNING: Improper connection of the equipment- grounding conductor can result in a risk
of electric shock.Check with a qualified electrician or service person if you are in doubt as to
whether the outlet is properly grounded. Do not modify the plug provided with the appliance-
–if it will not fit the outlet, have a proper outlet installed by a qualified electrician.
This appliance is for use on a nominal 120 volt circuit and has a grounded plug that looks like
the plug illustrated in sketch A below. A temporary adapter that looks like the adapter illustrat-
ed in sketches B and C may be used to connect this plug to a two pole receptacle, as shown
in sketch B, if a properly grounded outlet is not available. The temporary adapter should be
used only until a properly grounded outlet (sketch A ) can be installed by a qualified electri-
cian. The green colored rigid ear, lug, or the like extending from the adapter must be con-
nected to a permanent ground such as a properly grounded outlet box cover. Whenever the
adapter is used it must be held in place by a metal screw.
NOTE: In Canada, the use of a temporary adapter is not permitted by the Canadian Electrical
Assembly (Fig. 1)
The handle must be installed on the 20 gallon model (DW795) prior to use. To install the han-
dle, push the handle over the two steel handle receptacles mounted on the tank, making sure
that the spring loaded pins extend completely through all four of the holes in the handle. The
15 gallon model (DW792) does not require assembly.
Functional Features (Fig. 2)
The rocker switch is located on top of the unit as shown (A).
Insert the swivel end of the hose into the tank inlet (B) with a slight twisting motion. To remove
the hose grasp the knurled ring on the swivel end of the hose and twist while pulling out.
The vacuum cleaner is designed to perform as a wet/dry unit with no component changes
required when changing from wet to dry or dry to wet pick-up. It is recommended that the tank
be emptied of any dry contents prior to being used for wet pick-up to facilitate tank cleaning.
Filter (Fig. 3)
The filter (A) can be removed for cleaning or replacement by removing both thumbscrews (C)
holding the filter to the motor housing. The prefilter (B) can then be removed from the filter. To
reinstall the bag slide the slots near the rim of the bag over the ears of the filter cartridge and
pull the top layer of elastic over the top rim of the filter, taking care not to place the bag over
the opening of the filter. Reinstall the filter cartridge by pushing it over the set shutoff mecha-
nism so the ears of the filter cartridge (A) engage the pins on the motor head. Ensure that the
pins protrude through the ears and then reinstall the thumbscrews. NOTE: The thumbscrews
need only be hand tight. Overtightening may damage the motor housing.
Empty the vacuum often, especially when wet debris is in the canister. For your convenience,
a drain is located in the bottom rear of the tank for emptying liquid into a floor drain.
MAINTAIN TOOL WITH CARE. Keep fan area clean for best and safest performance. Follow
instructions for proper maintenance.
Do not attempt to repair the appliance. To assure product safety and reliability, repairs, main-
tenance, and adjustments should be performed by authorized D
EWALT service centers.
Store idle tools.When not in use, the appliance should be stored in a dry, high or locked up
place -- out of reach of children.
The cord should be coiled and held by the small strap provided when the unit is not in use.
The hose can be held in place on the side of the vacuum in the strap provided.
Never lubricate the vacuum cleaner motor. The motor bearings are permanently sealed. This
vacuum is intended for indoor or outdoor use and for wet or dry pick-up, but it is not intended
to be exposed to rain.
The DW792 includes a 1-1/2” hose that fits into most portable power tool dust collector ports.
The DW795 is equipped with a 2” hose that fits larger dust collection ports, and a 1-1/2”
Both hoses are available as accessories and will fit either vacuum.
A replacement filter and pre-filter is available at extra cost at your local D
EWALT service cen-
Recommended accessories for use with your tool are available at extra cost from your local
dealer or authorized service center. If you need assistance in locating any accessory for your
tool, contact:
EWALT Industrial Tool Company
626 Hanover Pike, P.O. Box 158
Hampstead, MD. 21074-0158
For questions concerning accessories or service, call 1-800-4-D
EWALT (433-9258).
CAUTION: The use of any other accessory not recommended for use with this tool could
be hazardous.
Full Warranty
EWA LT heavy duty industrial tools are warranted for one year from date of purchase. We will
r e p a i r, without charge, any defects due to faulty materials or workmanship. For warranty repair
information, call 1-800-4-DEWA LT. This warranty does not apply to accessories or damage
caused where repairs have been made or attempted by others. This warranty gives you specific
legal rights and you may have other rights which vary in certain states or provinces.
In addition to the warranty, D
EWALT tools are covered by our:
If you are not completely satisfied with the performance of your D
EWALT heavy duty industri-
al tool, simply return it to the participating seller within 30 days for a full refund. Please return
the complete unit, transportation prepaid. Proof of purchase may be required.
DEWALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286
Printed in U.S.A. (NOV98-CD-1) Form No. 387352 DW792 Copyright © 1998