TM-9-2330-356-14
SEMITRAILER, TANK: 5000 GALLON, BULK HAUL, SELF LOAD/UNLOAD M967 AND M967A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, AUTOMOTIVE M969 AND M969A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, UNDER/OVERWING AIRCRAFT M970 AND M970A1
TECHNICAL MANUAL; OPERATOR’S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1990
TM-9-2330-356-14 - Page 448 of 528
TM 9-2330-356-14
WARNING
(b)
Close the emergency valve.
Dry cleaning solvent P-D-680 Is toxic and
flammable. Always wear protective goggles
and gloves, and use only in a well-ventilated
area. Avoid contact with skin, eyes, and
clothes, and DO NOT breathe vapors. DO
NOT use near open flame or excessive heat.
The solvent’s flash point is 100°F-136°F
(38°C-59°C). If you become dizzy while
using cleaning solvent, immediately get fresh
air and medical help. If solvent contacts eyes,
Immediately wash your eyes with water and
get medical aid.
c.
Cleaning and Inspection.
Clean vent assembly with
dry cleaning solvent (item 11, Appendix E). Inspect O-ring
under vent cap for physical damage. Inspect for broken or
damaged spring. Inspect gasket for physical damage.
Discard if damaged.
d.
Installation.
(1) Install tube and connector into adapter. Hold
in place by hand.
(2)
Position gasket on top of vent mounting
flange on top of tank. Lower vent into place on top of tank,
aligning the connector with the vent. Hold complete
assembly in place and install eight capscrews.
e.
Adjustment.
(1) Emergency valve vent must be open
whenever the emergency valve is opened.
(2) If vent does not open, adjust vent as follows:
WARNING
Do not climb into tank unless interior of tank
has been drained and purged and an
explosive meter check indicates It Is safe to
do so. Adequate forced air ventilation or
self-contained breathing apparatus must be
used. Person entering tank must have an
attached lifeline. An observer must be
stationed at the manhole opening so that
assistance may be summoned In the event of
an emergency. Failure to follow this warning
may result In serious injury or death to
personnel.
(a)
Adjustment must be done from inside
tank.
(c)
Loosen jam nut and turn adjusting nut _
(fig. 8-12) until tube has 1/8-inch vertical travel.
(d)
Tighten jam nut.
(e)
Open emergency valve and ensure that
emergency valve vent also opens.
8-9.
Float Assembly
WARNING
Do not climb into tank unless Interior of tank
has been drained and purged and an
explosive meter check Indicates it is safe to
do so. Adequate forced air ventilation or
self-contained breathing apparatus must be
used. Person entering tank must have an
attached lifeline. An observer must be
stationed at the manhole opening so that
assistance may be summoned in the event of
an emergency. Failure to follow this warning
may result in serious injury or death to
personnel.
a.
General.
(1) The float assembly is located inside the
semitrailer tank. It can only be removed by a person from
inside the tank.
(2) Before the float assembly can be removed,
the fuel must be drained from the semitrailer tank and the
interior must be purged. For draining and purging
instructions refer to Section XX, Chapter 4.
b.
Float Replacement (Fig. 8-13).
(1) Disconnect the two tubes (1 and 2) from the
elbows (3 and 4). Be sure not to lose the two inserts (5 and
6).
(2) Remove capscrew (7), flatwasher (8), and
float valve (9).
(3) Remove bushing (10), elbow (3), bushing (11),
elbow (4), and bushing (12).
(4) Replace bushing (10), elbow (3), bushing (11),
elbow (4), and bushing (12) on the float valve (9).
(5) Install float valve (9) onto the mounting
bracket with capscrew (7) and washer (8).
(6) Reconnect the two tubes (1 and 2) to elbows (3
and 4). Be sure inserts (5 and 6) are in place in tubes.
8-18
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