TM 55-1730-229-34
AG 320A0-MME-000
TO 35C2-3-473-2
TM 1730-34/1
(e) Install new insert of bush-
ing into hole while primer is still wet.
Exercise care not to damage assem-
Insert shall be installed three-quarters
bly in which insert is installed.
to one and one-half turns below surface
of countersink.
1. Using a
rotary mill of
(f) Allow primer to cure four to
appropriate size, mill
out lock ring un-
remains. Remove
til only a thin shell
six hours at room temperature or by
baking for one hour at 82 to 135C
remainder of lock ring
using a scribe or
(180 to 275F).
suitable tool.
Install an appropriate
2.
(14) Replace Loose, Worn, or Dam-
size easy out into insert and back in-
aged Rosan Studs and Inserts.
sert out of assembly.
(a) Replace studs as follows:
3. Using compressed air,
blow out insert hole to remove debris.
Install new insert into
4.
Drive or press lock ring into
Exercise care not to damage assem-
assembly.
position.
bly in which stud is installed.
(15) Replace Damaged Keensert
Cut stud off near to sur-
1.
Studs.
face of assembly and then file cut end
flat. Center punch flat end of stud.
NOTE
Using a slightly oversize
2.
Studs less than 3/8-inch diameter
drill bit, large enough to cut inner
serrations of lock ring, remove enough
do not have a pilot hole.
of stud to remove serrations.
mounting surface to expose pilot hole
3. Drill a small hole into
for removal drill.
stud to accommodate an appropriate easy
out.
Do not allow drill to touch hous-
ing or damage may result.
Do not allow easy out to catch on
lock ring.
(b) Using pilot hole as a guide,
drill out stud until only a thin shell
remains.
Install easy out into
4.
stud and back stud out of assembly. Re-
NOTE
mainder of lock ring shall come out with
stud .
If threads of hole for stud are dam-
aged, tap new threads in hole. one
size larger than existing threads.
Threads on external portion of stud
shall be the same as stud removed.
(b) Replace inserts as follows:
2-31