Vacuuming Dry Materials; Vacuuming Liquids; Blowing Feature - RIDGID 4000RV Owner's Manual

SP6938-2 4 gallon ESF_SP6938 4/26/16 11:34 AM Page 6
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Operation (continued)

vacuuming Dry Materials

1. The filter must always be in correct
position at all times to avoid leaks and
possible damage to Vac.
2. When using your Vac to pick up very
fine dust, it will be necessary for you to
empty the drum and clean the filter at
more frequent intervals to maintain
NOTE: A dry filter is necessary to pick up
peak Vac performance.
dry material. If you use your Vac to pick
up dust when the filter is wet, the filter will
clog quickly and be very difficult to clean.

vacuuming liquids

1. When picking up small amounts of
liquid (less than 2 inches (5 cm) of
liquid in the bottom of the drum) the
filter may be left in place.
2. When picking up large amounts of liquid
(more than 2 inches (5 cm)
of liquid in the bottom of the drum)
we recommend that the filter be
removed. If the filter is not removed,
it will become saturated and misting
may appear in the exhaust.
3. When the liquid in the drum reaches a
predetermined level, the float
mechanism will rise automatically to cut
off airflow. You will know that the float
has risen because Vac airflow ceases
and the motor noise will become higher
in pitch, due to increased motor speed.
When this happens, turn off the Vac,
unplug the power cord, and empty the
drum.
4. After using the Vac to pick up liquids,
the filter must be dried to avoid
possible mildew and damage to the
IMPORTANT: To reduce the risk of
filter.
damage to the Vac, do not run Vac with
float in raised position.
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Emptying the Drum
1. To remove the lid to empty contents of
the dust drum, simply lift the two drum
latches on the side of the Vac and lift
the power head up and off the dust
drum and set to the side.
Drum Latches (2)
Power
Head
Drum
2. Lay the power head upside down on a
clean dry area while emptying the drum
or changing the filter.
3. Dump the drum contents into the proper
waste disposal container.

Blowing Feature

Your Wet/Dry Vac has the capability to be
used as a blower for yard work, patio
cleanup and workshop applications to
blow sawdust and other debris.
WARNING: Always wear safety
eyewear complying with ANSI Z87.1
(or in Canada, CSA Z94.3) before
using as a Blower.
WARNING: To reduce the risk of
injury to bystanders, keep them
clear of blowing debris.
CAUTION: Wear a dust mask if
blowing creates dust which might
be inhaled.
CAUTION: To reduce the risk of
hearing damage, wear ear protectors
when using the vac/Blower for
extended time or in a noisy area.
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