Air Filter Maintenance - Sullair 32 250L Series Operator's Manual

Section 5
MAINTENANCE
Figure 5-2 Main Filter
4. Remove the inner seals of the element and the
filter head seal and discard.
5. Clean all pans of the filter thoroughly including
the housing.
REASSEMBLY
1. Lubricate the new inner seals and install in the
ends of the clean element.
2. Place the filter element, spring seat, spring and
spring retainer over the valve stem and secure
with the hex nut.
3. Lubricate and install the new filter seal.
4. Install the filter head and element (as an assem-
bly) in the filter housing. The element is to slide
over the housing sleeve when properly installed.
5. Secure the filter head with four (4) capscrews.

AIR FILTER MAINTENANCE

Air filter maintenance should be performed when
the maintenance indicator shows red. The air filter
supplied with your machine has a cleanable type
element. Below you will find procedures on how to
replace and how to clean the air filter element:
16
AIR FILTER ELEMENT REPLACEMENT
1. Clean exterior of air filter housing.
2. Remove the air filter cover by loosening wing
nuts securing the cover.
3. Remove the internal cover plate.
4. Remove element and clean the interior of the
housing using a damp cloth. Do not blow dirt out
with compressed air.
5. At this time clean or replace the element.
6. Reassemble in the reverse order of the disas-
sembly.
AIR FILTER ELEMENT CLEANING
The air filter element is cleanable by one of two
methods. One method is by washing with a mild
household detergent and water. The other method
is cleaning with compressed air. The maximum
amount of times that an element should be cleaned
is six (6) times; however, the element should be
used no longer than a period of one (1) year without
changing.
Prior to cleaning an element, check the element for
damage. Damaged elements are to be replaced.
When cleaning an element, never exceed the rec-
ommended maximum pressures for water (40 PSI)
or compressed air (30 PSI).
Do not strike the element against any hard surface
to dislodge dust. This will damage the sealing sur-
faces and possibly rupture the element.
Never "blow" dirt out of the interior of the filter hous-
ing. This may introduce dust downstream of the fil-
ter. Instead, use a clean damp cloth. Do not oil the
element.
Method 1: Cleaning the Element by Washing.
When washing the element, never use petroleum
solutions or solvents. Also, never immerse a dirty
element in water or cleaning solution. This will carry
dust onto the "clean side" (inside surface) of the
element. Instead, dust must be removed by re-
verse flushing the element. Use clean clear water
with a garden hose at no more than 40 PSI. Direct
the water up and down the pleats in the filter media
from the "clean side" of the element until all dust is
removed.
If, after washing as described above, the element is
found to be contaminated with oil or greasy dirt, it
should then be agitated in a solution of mild house-
hold detergent and water. Add 4 tablespoons of de-
tergent to one gallon of lukewarm water and mix
well. After a sufficient amount of agitation has been
done, rinse thoroughly and carefully shake out ex-
cess water. Lay the element on its side and allow to
dry before installation. The element should be pro-
tected from dirt and/or freezing while drying. Me-
chanical drying methods can be used; however,