5
(Cont’d) PROCEDURES IN REMOVING CONTAMINATED FILTERS AND CLEANING OF CONTAMINATED TANK
8. Before inserting another plastic bag and paper debris bag, take a wet paper towel and wipe out the inside of the
tank of any dirt contaminate. Put this inside the plastic bag along with the used paper filter protector and
impact filter. This plastic bag should also be twisted shut, tied into a knot and disposed of properly.
9. To help prolong the life of the H.E.P.A. or U.L.P.A. filter, a spare cloth filter should be interchanged with the
existing cloth filter. Vacuum out when there is any noticeable dirt or soil. The cloth bag can also be sprayed
with a garden hose from the inside out to remove any soil. Make sure that the cloth filter is completely dry
before reinstalling it into the vacuum.
10. CAUTION: Any hazardous materials must be disposed of properly. Never throw contaminated debris into you
usual trash receptacle. Place debris in a plastic bag or can marked “Hazardous Materials” and take to a
hazardous waste handler.
11. For proper assembly of new filters, see
“Tank Filter Set Up Procedures.”,
on page 4.
CHANGING THE PINK IMPACTION PREFILTER
The pink impaction filter should be changed, using all of the precautions previously mentioned.
The impaction filter should be changed when any of the following takes place:
1. Anytime there is an indication of a filter tear during normal operation of the unit. This tear
could be in any of the filters used.
a. paper dust containment bag
b. paper bag protector
c. cloth filter bag
These tears would show up during the tank clean-out procedure, or....
2. Every other tank clean-out period. To change the impaction filter, do the following before you do Step #3 of
the normal clean-out procedure.
a. Wipe down all of the exposed surfaces on the underside of the removed lid, using the
dampened wiping cloth.
b. Carefully unclamp filter retainer from the side of the filter. Set the retainer aside.
c. Remove the impact filter from the high efficiency filter. Be careful so as not to damage or puncture the
U.L.P.A. or H.E.P.A. media used in the final filter. Do not attempt to clean the pink impact filter in any
way; dispose of by placing it into the tank you are now in the process of cleaning. DO NOT USE ANY
TOOLS TO REMOVE THE IMPACT FILTER.
d. Before proceeding any further in cleaning the tank, first place a new impact filter (one only)
onto the H.E.P.A.or U.L.P.A. filter. Replace the impact retainer and lock it into place by reclamping.
