TM 10-4610-241-24
TO 40W4-13-42
3-5.
THREADED INSERTS AND HELICOILS - continued.
(17)
Place tang breakoff tool (16) in tapped hole with installed insert.
(18)
Push down end of breakoff tool (16) until tang (17) breaks off of insert (7).
d.
Removing Damaged Helicoil Inserts.
CAUTION
Do not damage threads of tapped hole when using extraction tool.
Remove inserts from end of tapped hole that the insert is closest to.
Threads in tapped hole can be damaged.
NOTE
All sizes for tools and helicoils depend on original helicoil size.
(1)
Place extraction tool (1) in insert (2). Tap top of extraction tool.
(2)
Maintaining a steady downward pressure, turn tool (1) to the left. Remove insert (2).
(3)
If insert (2) does not come out of tapped hole, go to step (4). If insert does come out of tapped hole, go
to step (8).
(4)
Insert scribe (3) between end of insert (2) and tapped hole.
(5)
Work end of insert (2) away from tapped hole and form a tang equal in length to diameter of insert.
3-104
