TM 5-4610-218-34
CHAPTER 6
REPAIR OF DIATOMITE FILTER ASSEMBLY COMPONENTS
Section I. DIATOMITE FILTER AIR RELEASE VALVE
WARNING
and disassemble the air release valve.
Dry cleaning solvent, P-D-680,
d. Clean, Inspect and Repair.
used to clean parts, is potentially
(1) Clean all metal parts with dry clean-
dangerous. Avoid repeated and
ing solvent P-D-680.
prolonged breathing of the va-
pors and skin contact with the
(2) Clean the diaphragm, gasket, and re-
liquid. Do not use near open
tainer in alcohol or a nonmineral base clean-
flame or excessive heat. Use in a
ing solvent.
well-ventilated area. The flash-
(3) Inspect the spring for loss of tension.
p o i n t of P-D-680 is 100-138F
(38-59C).
(4) Inspect the diaphragm and rod for
signs of wear.
6-1. Diatomite Filter Air Release Valve.
(5) Inspect the rubber seat on the disk to
a. General. A diatomite filter sir release
see if it is tight on the disk and not cracked or
valve is located on top of the filter housing. It
worn.
releases air trapped in the filter housing
cover on the effluent side of the filter elements.
(6) Replace all damaged or defective parts.
A weak or broken spring, cracked of defective
diaphragm, or corroded disk and rod will cause
e. Reassembly. Refer to figures 6-3 and 6-2
improper operation of the filter and valve.
and reassemble the air release valve.
b. Removal. Remove the diatomite filter air
f. Installation. Install the diatomite filter air
release valve as illustrated in figure 6-1.
release valve as shown in figure 6-1.
6-1
