Air Filter Maintenance; Separator Element Replacement - Sullair LS20 Operator's Manual And Parts List

Section 10
MAINTENANCE
Figure 10-2 Air Filter Replacement LS20 (100HP/ 75KW) (P/N 02250059-096)
*Primary Replacement Element P/N 02250046-012
**Secondary Replacement Element P/N 02250046-013
tuted elements not be used, due to the fact that
such filters may have inadequate or questionable
working pressure ratings.

AIR FILTER MAINTENANCE

Refer to Figure 10-2. Air filter maintenance should
be performed when indicated by the maintenance
display/gauge when running full load, or once a
year, whichever comes first. If the filter needs to be
replaced, order replacement elements. Following
you will find procedures on how to replace the air fil-
ter elements.
AIR FILTER ELEMENT REPLACEMENT
1. Clean exterior of air filter housing.
2. Unscrew the wing nut securing the cover.
3. Carefully remove the element from the housing.
4. Unscrew the wingnut assembly securing the pri-
mary element in place.
5. Remove primary element.
6. Loosen the hex nut, and remove the hex nut and
washer securing the secondary element in
place.
7. Carefully replace the secondary filter, making
sure it rests correctly in position.
50
8. Replace the hex nut and washer; tighten.
9. Replace the primary element, making sure that it
rests correctly in position.
10. Replace the wingnut assembly and tighten to
secure primary element in place.
11. Replace the cover.
12. Secure the cover by tightening the wingnut.
ELEMENT INSPECTION
1. Place a bright light inside the element to inspect
for damage or leak holes. Concentrated light will
shine through the element and disclose any
holes.
2. Inspect all gaskets and gasket contact surfaces
of the housing. Should faulty gaskets be evi-
dent, correct the condition immediately.
3. If the clean element is to be stored for later use,
it must be stored in a clean container.
4. After the element has been installed, inspect and
tighten all air inlet connections prior to resuming
operation.

SEPARATOR ELEMENT REPLACEMENT

Refer to Figure 10-3. Follow the procedure
explained below for separator element replace-