C5-6 Air Filtration System C05019
4. After cleaning, inspect the element thoroughly
for the slightest ruptures and damaged gaskets.
A good method for detecting paper ruptures is
to place a light inside the filter element, as
shown in Figure 5-3, and inspect the outer
surface of the filter element. If holes or ruptures
are found, do not reuse the element. Discard
and replace with a new element.
.
Clean dust loaded elements with dry filtered
compressed air as follows:
1. Maximum nozzle pressure must not exceed
207 kPa (30 psi). The distance from the nozzle
to the surface of the filter element must be at
least 25 mm (1 in.) to prevent damage to the
filter material.
2. As shown in Figure 5-4, direct the stream of air
from the nozzle against the inside of the filter
element. This is the clean air side of the
element and air flow should be opposite of
normal air flow.
3. Move the air flow up and down vertically with
the pleats in the filter material while slowly
rotating the filter element.
4. When cleaning is complete, inspect the filter
element as shown in Figure 5-3. If holes or rup-
tures are noted, discard the element and
replace with a new element.
FIGURE 5-3. INSPECTING THE FILTER ELEMENT
FIGURE 5-4. CLEANING THE FILTER ELEMENT
WITH COMPRESSED AIR
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