TM 10-5411-201-14
T.O. 35E4-178-1
4-42.
THREADED INSERTS REPLACEMENT.
NOTE
Inserts installed in extrusions are not potted.
For
removal of these inserts, perform steps a and b only.
Knock out insert and replace with same type.
a.
Depending on insert size, select a drill bit in size range listed
below.
Insert Thread Size
Drill Size Range
inches (mm)
10-32
7/16-15/32 (11/12.4)
1/4-28
17/32-21/32 (13.5/16/7)
5/16-24
39/64-21/32 (15.5/16.7)
3/8-24
43/64-23/32 (17/18.3)
WARNING
Wear safety goggles for eye
against flying chips.
protection
b.
Using selected drill bit, drill head
flange from insert.
c.
Drill small holes around insert body in
potting compound to approximate depth of insert.
Take care not to damage area around insert
beyond hole diameter of step above.
Do not
drill through to opposite skin.
d.
Install bolt of corresponding thread
size in insert.
e.
Use wrench to break insert loose.
f.
Install bolt end in a hand drill motor.
g.
Spin loose insert to build up heat which
will allow insert to be removed from hole.
h.
Remove loose chips and clean out hole.
NOTE
Replacement insert is a spool type potted insert.
4-180
