Gardner Denver EDF-KB Operating And Service Manual page 48

SECTION 6
AIR FILTER
FIGURE 6–1 – HEAVY DUTY AIR FILTER
GENERAL – The air filter must receive proper mainte-
nance if maximum service is to be obtained from the
unit. Establishing adequate and timely filter service is
MOST IMPORTANT. A wide range of operating hours
is possible. With wide variation of dust conditions en-
countered, only experience can determine the proper
time interval for servicing filters.
HEAVY–DUTY AIR FILTER (FIGURE 6–1) furnished
as standard equipment on units with an enclosure is a
heavy–duty washable element dry type air filter. The air
filter must receive proper maintenance if maximum ser-
vice is to be obtained from the unit. Establishing ade-
quate and timely filter service is MOST IMPORTANT.
Improperly maintained air filter can cause a loss of
compressor air delivery.
Filter Element – Service the air filter element when the
"CHANGE AIR FILTER" LED is illuminated. Clean ev-
ery 50 to 150 operating hours depending on dust condi-
tions.
Use only genuine Gardner Denver air
filter elements on Gardner Denver
compressor units. Genuine parts are
available through your authorized
Gardner Denver distributor.
To service:
1. Remove the wingnut and pull out the filter ele-
ment.
2. Visually inspect the element. If cleaning is not
necessary, reinstall the filter element. If the ele-
ment requires cleaning, go through steps 3, 4 and
5.
3. Wash the element by soaking about 15 minutes in
warm water with a mild nonsudsing detergent.
Rinse the element thoroughly with clean water; a
hose may be used if the water pressure does not
exceed 40 psig (2.8 Bars).
4. Inspect the element for ruptures or cracks in the
pleated media; replace the element if any are
found. Inspect the gasket on the bottom (outlet
end) of the element; replace the entire element if
the gasket is damaged, a spare element will keep
downtime to a minimum.
5. Allow the element to air dry COMPLETELY. Do
not expose the element to heat over 150 F (66
C). Install the element in the filter body and fasten
securely with the wing nut.
Do not oil this element. Do not wash
in inflammable cleaning fluids. Do
not use solvents other than water. Im-
proper cleaning may damage the ele-
ment.
Never operate the unit without the ele-
ment. Never use elements that are
damaged, ruptured or wet. Never use
gaskets that won't seal. Keep spare
elements and gaskets on hand to re-
duce downtime. Store elements in a
protected area free from damage, dirt
and moisture. Handle all parts with
care.
Filter Element Life – The element should be replaced
after six (6) cleanings or if:
1. Visual inspection indicates a rupture, crack or pin
hole in the pleated media. Inspection should be
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