OPERATOR, UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
ADVANCED AVIATION FORWARD AREA REFUELING SYSTEM MODEL M100A1
OPERATION UNDER UNUSUAL CONDITIONS
OPERATION IN EXTREME HEAT
Operation under conditions of high heat may cause equipment problems due to thermal expansion. Nozzle seals are
especially subject to damage. Basic system operation is as described in WP 0007 00. The following additional steps and
recommendations should be implemented to protect the system to the extent possible.
Protect the system from direct sunlight if possible.
Position system components in the shade of trees, buildings, etc. If shade is available only part of the day, choose
afternoon shade. Do not block air circulation.
Use any material available to create shade. Do not block air circulation.
Do not connect the nozzles without opening the hose unisex coupling valve. Disconnect as soon as possible after closing
unisex coupling valve to prevent rupture of seals due to expansion of fuel trapped in the nozzle.
System components are subject to damage from thermal expansion. As the temperature increases, the pumpage in any
component will expand. If trapped in a component, the expanding pumpage may rupture seals and cause a leak or
equipment malfunction. For this reason, all system valves should remain open as long as the system is flooded. With all
valves open, the hoses will absorb the expansion and protect system seals. If any component must be isolated, it should
be drained or defueled immediately to prevent damage.
OPERATION IN EXTREME COLD
Operation under conditions of extreme cold may cause equipment problems due to loss of flexibility. Nozzle seals and
coupling face seals are especially subject to damage. Basic system operation is as described in WP 0007 00. The following
additional steps and recommendations should be implemented to protect the system to the extent possible.
Set up system in area protected from wind, if possible.
Remove snow or ice from coupling ends before making connections to prevent entry of foreign material into system.
Make and break unisex connections slowly and carefully to avoid cracking or splitting of face seals.
Do not try to force open couplings that appear jammed. Work back and forth to break loose ice at coupling face.