ADVANCED AVIATION FORWARD AREA REFUELING SYSTEM MODEL M100A1
REPLACE THREE-INCH UNISEX COUPLING
Tool Kit, General Mechanics
Chemical and Oil Protective Gloves
Rubber gloves should be worn when handling fueling system components due to the
toxic effects of some fuel additives.
Remove ball retaining screw (1) and O-ring (2). Discard O-ring (2).
Position a wiping rag under unisex coupling (3) and orient unisex coupling (3) screw hole toward wiping rag. Rotate
unisex coupling (3) back and forth to allow the 41 balls (4) to collect in the wiping rag. Do not separate coupling at this
Continuity ball is essential to mission.
There is a small ball and spring in the inlet that are used to maintain electrical continuity.
The ball and spring will pop out when the coupling is separated from the inlet. Coupling
removal must be performed in a way that captures the continuity ball and spring, such as
wrapping a rag around the joint before separating the coupling from the inlet.
Slowly separate the unisex coupling (3) and inlet (5). Collect the continuity ball (6) and spring (7).
Remove and discard inlet O-ring (8).