TM 5-4310-275-14
WARNING
(3) Install rupture discs (16), disc rings (15)
and disc ring retainers (14) in ports in tank cap
Dry cleaning solvent, Fed, Spec. P-D-680
(17). Tighten retainers with a torque of 350
o r P-S-661, used to clean parts is
pound-inches (4.0522 kgm).
potentially dangerous to personnel and
property. Avoid repeated and prolonged
(4) Install pipe plug (13) in center port of
tank cap (17).
skin contact. Do not use near open flame
or excessive heat. Flash point of solvent
(5) Test partially assembled filter and
is 100 F. (38C.) -- 138 F. (59 C.).
separator for leakage, before continuing with
assembly.
d. Cleaning and Inspection.
(1) Wash all parts, except filter element,
(6) After completing leakage test, wrap heat
packings and gaskets, in dry cleaning solvent,
blanket (10) around shell (23) and secure in
Fed. Spec. P-D-680. Dry parts thoroughly with
position with tape as in original configuration.
clean, lint-free cloths and//or low-pressure
(7) To reassemble pneumatic dump valve,
compressed air,
position lubricated packing (8, fig. 6-8) on the
(2) Inspect parts for scoring, pitting, wear
seat (7). Install the seat and retainer (6) in body
and other evidence of damage. Make sure all
(9) .
drilled passages are unobstructed.
(8) Test assembled pneumatic dump valve in
(3) Check operation of heater blanket and
accordance with instructions below. After
thermostat switch against performance
completing tests, screw valve into port at bottom
requirements listed:
of separator shell.
Manufacturer . . . . . . . . Stewart-Warner Corporation
f. Testing. Test the filter and separator for
Filter element . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
leakage before attaching the heater blanket or
Rupture disc
thermostat switch, or installing the pneumatic
burst pressure . . . . . . . . . . . ...4500 to 5000 psig
dump valve.
(316.3500) to 351.5000 kg per sq cm)
NOTE
If thermostat switch was not removed during
Heater blanket:
disassembly, it must be protected against
Voltage . . . . . . . . . . . . . . . . . . . . . . . . ..27 volts dc
moisture by covering with waterproof tape.
Power. . . . . . . . . . . . . . . . . . . . . . . . . . . ..140 watts
(1) Install pressure plugs in all ports except
Thermoswitch:
one. Connect variable source of compressed air to
Contacts open . . . . . . . . . . . . . . . . . . ..755F.
remaining port.
(24 5C.)
(2) Pressurize filter and separator to 3000
Contacts close . . . . . . . . . . . . . . . . . . ..45 7F.
psig (210.9000 kg per sq cm). While mainlining
(70 7C.)
this internal pressure, brush a soap-water
e. Reassembly.
solution on joints of assembly. Maximum
(1) Position gasket (19, fig. 6-8) and filter
allowable leakage, as evidenced by air bubbles, is
elements (20) against inner surface of tank cap
one bubble per minute.
(17) and secure in position with washer (21) and
new screw and plug assembly (22).
(3) If leakage rate exceeds one air bubble per
minute, disassemble filter and separator and
(2) Lubricate gasket (18) with pneumatic
install new packing on cap.
system grease, Specification MIL-G-4343, and
place gasket in groove around tank cap (17).
(4) Install the dump valve into a test setup
as shown in Figure 6-9.
Screw cap into shell (23) until seam is closed.
