2-53. REPLACEMENT OF THREADED SCREW INSERTS.
Threaded screw inserts are replaced as described in the following procedure. Table 2-3 lists the threaded screw
inserts included in the maintenance group for repair of this equipment. It also identifies where these threaded
screw inserts are used in the equipment. Also see TM 11-5820-890-30P-1.
Table 2-3. Threaded Screw Inserts
where holding battery cover attaches
where top cover attaches
where bottom cover attaches
where handle assembly attaches
where guard assembly attaches
where keypad attaches to front panel
Threaded screw insert extractor
Thread cleaning tap
Tang breakoff tool
Figure 2-19 for illustration of process.
Threaded screw insert
Place in hole. Tap extractor to
For recessed M3 x 1 inserts, use
seat in insert. Maintain steady
tool 1227-02. For all others, use
pressure on extractor and
tool 1227-6, or 1227-02, depend-
unscrew insert. Remove insert
ing on insert size.
See figure 2-19 for illustration of
b. Thread cleaning tap (2)
Select proper size tap. Insert
and secure in brace (3). Start
carefully in hole. Screw tap to
bottom of hole. Unscrew tap.