Cleaning The Filters - National Flooring Equipment DL4000 Instruction Manual

4.5

Cleaning the filters

➢ Remove filter from machine by following the steps in "Replacing the Filters".
Note: HEPA filters are NOT washable.
➢ Gently tap filter to dislodge loose contaminants. Use a garbage bag or other suitable container to
catch the material, keeping in mind the type of material that was picked up during operation.
➢ Rinse filter with warm, running water from the inside out.
➢ Let filter soak for 10-20 minutes in warm water with a mild dishwashing soap.
➢ Gently wash filter by rolling it through the water. A soft brush can also be used to clean the pleats,
but be careful to not tear the filter.
➢ Rinse filter with clean, running, warm water and let air dry.
Note: The filter must be completely dry before using again. Do NOT use compressed air to dry the
filter.
➢ When filter is completely dry, re-install it on the machine.
Keep in mind that filters do have a life span and washing won't get them back to like-new performance;
however, it will be better than using dirty filters. Inspect filters regularly for any damage to the filter
media. If the media is damaged, replace the filter.
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Maintenance Section