INSTALL NON-SEALED INSERTS
5. Install insert in threaded hole. Use a cap
screw or bolt and a hex nut.
6. Install lockring. Use a hammer and a flat
piece of steel. Drive straight into surface.
Lockring must be flush or no more than
1/32 inch (0.8 mm) below hull surface.
INSTALL SEALED INSERTS (M981
CARRIER, EXTERNAL FUEL TANKS
Ensure that threaded hole is clean, dry, and
Remove packing from insert.
Apply light coat of grease to packing. Cover
external threads of insert with paper or tape
to protect them from the grease. Slide pack-
ing over paper or tape, and position packing
against shoulder of insert. Remove protective
paper or tape.
Apply a thin, even coat of primer and then
sealing compound to external threads of in-
sert. Do not apply primer or sealing com-
pound beyond small end of threads.
Using a cap screw or bolt and hex nut,
screw insert into threaded hole until packing
contacts counterbore. Turn insert 1/4 to 3/8
(0.6 to 0.9 cm) of a turn more to compress
Install lockring. Use a hammer and a flat
piece of steel to drive lockring in flush or no
more than 1/100 inch (0.3 mm) below sur-
END OF TASK