RIDGID WD4550 - Manual (Page 11)

WARNING: To reduce the risk of
injury from accidental starting,
unplug power cord before emptying
the drum.
Emptying the Dust Drum 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 peak
vac performance.
NOTE: A dry filter is necessary to pick up
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.
3. If your filter is wet but you need to use
the vac to pick up dry material, you can
quickly dry the filter by running the vac
without hose attached for about
10 minutes. The clean air rushing
through the vac will help dry the filter.
Vacuuming Liquids
1. When picking up small amounts of liquid
the filter may be left in place.
2. When picking up large amounts of liquid
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 mech-
anism will rise automatically to cut off
suction. 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 filter.
IMPORTANT: To avoid damage to the vac,
do not run motor with float in raised
position.
1. To remove the power head to empty
contents of the dust drum, simply lift the
two drum latches on the front and rear
of the vac and lift the power head up
and off the dust drum and set to the
side.
Cord Storage
When vacuuming is complete, unplug the
cord and wrap it up as described in the
Cord, Hose & Accessory Storage section
shown on page 9.
Drum Latches
(2)
CAUTION: Do not remove the filter
cage or float. It is there to shut off
airflow when the drum is full of
liquids.
2. Set the power head upright in a clean,
dry area while emptying the drum.
3. Dump the drum contents into the proper
waste disposal container.
CAUTION: A partially unwrapped
cord may fall in coils near your feet.
You could trip. To reduce the risk of
tripping, always fully unwrap the
cord before plugging it in.
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SP6609 8/25/05 2:02 PM Page 11