TSI Instruments Aerotrak 9303 - Page 63

General Maintenance–Model 7301-P 4-3
2. Orient the unit so
that you have
access to both
the filters.
3. DO NOT remove
all the tubing
connected to the
filters
simultaneously.
Instead
disconnect the
tubing for the first
filter. Check if the
tubing is dirty. If
so, replace the
tubing.
4. You can also slip
off the filter from
the tie wrap
without cutting it
as shown in
photo.
5. Replace with a
new filter
(6001577).
Repeat the same
procedure for the
other filter.