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Page Title:
Replace Loose, Worn, or Damaged Rosan Studs and Inserts. |
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  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 135°C
remainder of lock ring
using a scribe or
(180° to 275°F).
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.
(a) Cut off stud just above
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.
Use new stud with matching threads.
Threads on external portion of stud
shall be the same as stud removed.
(b) Replace inserts as follows:
2-31
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