a.
Unscrew the filter bowl from the head. If
required, use a wrench on the square boss
located on the bottom of the filter bowl.
b.
Remove the element assembly from the filter
head, discard element and replace with an
AN6235-2A type element assembly.
Tighten the filter bowl in the head, hand
tight only. Sealing is accomplished by
the o-ring seal, not by tightening.
c.
Check o-ring and backup rings for deterioration,
cuts, or other damage. Replace as necessary.
d.
Make certain the new element assembly is
seated properly in the filter head and screw the
bowl in the filter head. Do not overtighten.
5-12. First, Second, and Third Stage Traps (Figure 5-8).
To inspect and clean the first, second, and third stage
trap filters, proceed as follows:
Figure 5-8. First. Second, and Third Stage Traps.
Make certain that all air pressure has
been relieved from the compressor air
supply
system
by
opening
the
mechanical filter drain valve, dehydrator
bleed valve, and service hose bleed
valve.
a.
With
compressor
stopped
and
unloaded,
unscrew and remove the trap filter assembly and
o-ring from the top of the trap body. Remove the
o-ring.
Provide adequate ventilation when using
dry
cleaning
solvent
(Federal
Specification P-D- 680, Type II). Avoid
prolonged
breathing
of
vapors
and
minimize skin contact.
b.
Wash filter screens thoroughly in solvent, per
Federal Specification P-D-680, Type II. Allow
filters to air dry.
Figure 5-9. Line Strainers
5-9
