MIL-DTL-62180F(AT)
underwing servicing of aircraft at flow rates shown in table II using the large nozzle. Pressure at
the large, closed-circuit nozzle shall be controlled to 40 - 50 pounds per square inch (psi). The
overwing system of this dispensing assembly shall provide for metered delivery of fuel for
overwing servicing of aircraft at flow rates as shown in table II using the small nozzle (see 4.5.9
and 4.5.10).
3.3.5 Tank shell assembly. The 5000-gallon tank vessel shall not leak at seams, joints,
sealed vents and closed valves and not deform when tested in accordance with DOT 406 from
49CFR178.345 and 49CFR178.346 (see 4.5.11).
3.3.6 Tank capacity indicator. The top fill tank capacity indicator shall be set at the full
tank capacity with an accuracy of ±25 gallons (see 4.5.12).
3.3.7 Controls. Valves and controls shall be identified with the respective identifying
letters specified on the instruction plate installed on the semitrailer. The letters and numeral
markings shall be painted on the valve and shall be one inch high. Electrical and mechanical
controls shall operate without malfunction throughout the ranges of tanker operating conditions
and fuel flow shall automatically stop when automotive s fuel tank or container becomes full
(see 4.5.13 and 4.5.17).
3.3.8 Fuel loading/unloading system.
3.3.8.1 System components. Fuel loading/unloading system components shall meet the
following specified pressure requirements (see 4.5.14.2).
3.3.8.1.1 Pipe assemblies. Pipe assemblies with welds shall be subjected to a minimum
pressure of 125 psi. There shall be no leakage.
3.3.8.1.2 Hose assemblies. Hose assemblies shall be subjected to a pressure of
65-70 psi. There shall be no leakage.
3.3.8.1.3 Hose reels. Hose reel assemblies shall include a crank handle for manual
operation of each hose reel. Hose reels shall operate at -25 °F and the hose shall not crack.
3.3.8.2 Bulkhaul and automotive fuel servicing tankers fuel loading/unloading system.
Fuel loading/unloading pipe assembly shall be subjected to the following pressures:
a. 65 ±2 psi (after pump outlet of pipe assembly).
b. 30 ±1 psi (before pump inlet of pipe assembly).
There shall be no leakage at the joints, closed valves, or any component part of the pressurized
system (see 4.5.14.3 and 4.5.14.4).
14
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business