|
| |
TM 5-5430-210-12
Table 3-2. Troubleshooting (con’t)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
12. CONTROL VALVE ASSEMBLY COUPLING (FEMALE) LEAKS (7, fig. B-4).
Step 1. Check the coupling for miming or loose hexagon head cap screws (4 and 5).
Replace all missing screws and nuts. Tighten all screws and nuts to 30 inch-pounds.
Step 2. Check the round flange gasket (8) for damage or breaks,
Replace the flanged coupling and replace the gasket (para. 3-9).
13. CONTROL VALVE ASSEMBLY ADAPTER (MALE) LEAKS (12, fig. B-4).
Step 1. Check the adapter for miming or lame hexagon head cap nut and screws (9 & 10).
Replace all missing screws and nuts. Tighten all screws and nuts to 30 inch-pounds.
Step 2. Check the round flanged gasket (13) for damage or breaks.
Remove the flanged adapter and replace the gasket (para. 3-9).
14. CONTROL VALVE LEAKS
Step 1. Check for loose or missing screws (6, fig. B-5) on the valve bonnet (8).
Tighten or replace missing washers and bolts (para. 3-10).
Step 2. Check for damaged or distorted bonnet gasket (9).
Replace bonnet gasket (para. 3-10)
Step 3. Check for bent or distorted bonnet stem (12).
Replace bonnet stem (para. 3-10).
Section IV.
M A I N T E N A N CE
3-5. General. This section contains maintenance
and repair instructions for the four collapsible POL
tanks.
3-6. Vent Assembly (All Tanks).
a. Disassembly.
(1) Disconnect the female quick disconnect
coupling, (1, fig. B-1) from the flanged male quick
disconnect coupling (4) by pulling outward on cam-
lever arms, then lift quick disconnect coupling from
the male coupling.
(2) Remove the eight screws and washers (2
and 3). Lift flanged coupling (4) from tank fitting.
(3) Remove the preformed packing (5) from
the packing groove in the tank fitting,
(4) Separate relief cap (6) from the vent pipe
(9) by turning the cap in a counter clock-wise direc-
tion until threads disengage.
(5) Remove relief cap gasket (7) from the in-
side of the relief cap.
(6) Turn flame arrestor (8) in a counter clock-
wise direction until the threads disengage from the
relief cap (6).
(7) To remove vent pipe (9) from the quick
PROCEDURES (ALL TANKS)
disconnect coupling (1), turn the vent pipe in a
counterclockwise direction until threads disengage.
(8) Remove dust cap gasket (11) from inside
of the dust cap (12).
b. Cleaning and Inspection.
W A R N I N G
Drycleaning solvent, P-D-680, used to
clean parts is potentially dangerous to
personnel and property, Avoid re-
peated and prolonged skin contact.
Do not use near open flame or exces-
sive heat. Flash point of solvent is 100
degrees F -138 degrees F (38 degrees C
-59 degrees C).
(1) Clean all parts with cleaning solvent
(Item 1, App. F) and dry thoroughly.
(2) Clean out preformed packing grooves thor-
oughly.
(3) Inspect all mechanical parts for cracks,
dents, breaks, or wear. Replace or repair, if un-
serviceable.
(4) Carefully inspect gaskets and packings for
deterioration, -distortion, cracks, or breaks. Replace
3-6
|
