Use and Care Manual

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Model T28798 (Mfd. Since 01/20)
Cleaning/Replacing
Filters
The 5-Micron active carbon and 1-Micron pleated
micro filters need regular cleaning. Replace every
300 hours or when airflow performance becomes
noticeably reduced despite cleaning.
1
. DISCONNECT MACHINE FROM POWER!
2. Wear NIOSH-approved respirator, ANSI-
approved goggles, and protective gloves
while handling filters.
3.
Unlatch filter door and open approximately 30
degrees.
4.
Open (2) retaining clips on door and remove
filters (see Figure 33). If re-using, note air-
flow direction across filter for replacement in
Step 5.
Wear ANSI-approved safety goggles, a
NIOSH-approved respirator, and protec-
tive gloves when removing, cleaning, and
replacing filters. Carefully minimize amount
of dust allowed to become airborne, and
prevent spread of dust onto hands or cloth-
ing. Dispose of all waste properly according
to local regulations for material type.
5. Replace filters in same sequence shown in
Figure 33, while also ensuring filters are
installed with proper airflow direction. Close
retaining clips to secure filters.
6.
Close and latch filter door.
Figure 33. Air filters and components.
Stainless
Mesh
Filter
Active
Carbon
Filter
Pleated
Micro
Filter
Always clean filters outdoors when possible!
However, take special care to avoid contaminat-
ing the environment. When cleaning filters, always
inspect for damage and replace filters if ANY
damage or tears are found.
Initially clean all filters by carefully tapping caked-
on dust into an enclosed container to minimize
release of dust into the air, then follow the applica-
ble instructions provided below for each filter type.
IMPORTANT: DO NOT use compressed air to
clean filters—especially if indoors—as it will likely
cause a large amount of fine dust to become air-
borne and could damage the Stage-2 and -3 filters.
Stage-1 Stainless-Steel Mesh Filter
Flush with water or other liquid into an enclosed
container and air dry. Carefully collect flushed
waste and dispose of properly.
Stage-2 Active Carbon Filter
Clean with a soft bristle brush and vacuum with a
shop vacuum equipped with a HEPA filter.
Stage-3 Pleated Micro Filter
Clean with a soft bristle brush and vacuum with a
shop vacuum equipped with a HEPA filter.
Cleaning Filters
Replacing Filters
Retaining
Clips