Aline keys of plug connector and keyways of receptacle by rotating connector until it slides into
There is a colored circumferential line (dark band)
around the mating receptacle. When this line is
covered (no longer visible), and the connectors are
firmly seated, the connectors are fully mated.
Aircraft electrical connectors may also have a
colored line and may require a different mating
procedure. See applicable aircraft manual for
Push in on plug connector. Carefully thread coupling ring onto mating receptacle. Alternately
push in on plug connector and hand-tighten coupling ring until plug connector is firmly seated and dark
band on mating receptacle is covered (no longer visible).
Apply a side-load to plug connector. There will be no movement between the plug connector and
Unless otherwise specified, apply a light coat of lubricating oil to packings.
Before installing packings and parts containing packings, lubricate all grooves, lead-in chamfers, bores,
and surfaces with lubricating oil.
Wipe off excess oil before assembling parts.
Do not reuse packings that were removed during disassembly. Use new packings at final assembly.
Remove packings by hand if possible. Use the following procedure to remove packings if they are
difficult to remove by hand.
Tools can damage packing grooves, causing fuel
or oil leaks.
Stick a scriber into the packing. Do not touch packing groove with the scriber.
Lift packing out of groove.
The following information applies to all wrench-arc tightening procedures.