TM 11-5895-856-34-1/ E E640-CA-MMI-010/E 154 CPU/TO 31W2-2T-122-1
otherwise, contact pin cannot be extracted from tool
(2) Push extraction tool into rear of plug until
jaws. Maintain slight insertion pressure on wire while
it bottoms (B, fig. 3-14). At this point, tool releases
crimping contact pin to wire.
tines on retaining clip so that contact pin can be
(3) While maintaining slight insertion force on
c. Contact Pin Replacement.
tool, firmly hold wire against serratedsholder at center
of tool and extract both wired contact pin and tool from
(1) With colored end of extraction/insertion
tool (MS27534-12) place wire into tool at large opening
(E, fig. 3-14). To facilitate contact pin insertion, a six-
b. Stripping and Crimping.
inch minimum free length of wire is recommended.
(2) Slide back tool on wire while holding
thumb against wire at opening. Wire will slip into tool.
(1) Cut off broken contact pin (close to pin as
(2) Strip insulation on wire back 9132 of an
Socket contact pin should be inserted partially into
connector by hand before using insertion tool.
(3) Insert wire into rear of new contact. Wire
insulation must butt against rear of contact pin (C, fig.
3-14) and visible through inspection hole.
(3) With tool pressed against shoulder of
contact, insert wired contact pin and tool into connector
(4) With crimp tool M22520/1-01 and crimp
at rear of plug with firm even pressure (E, fig. 3-14).
locator M22520/1-02, insert contact pin into tool jaws (D,
Do not use excessive pressure.
slight click can be heard as tines of metal retaining clip
snaps into place behind contact pin shoulder.
The color code band on contact (yellow for #3 wire)
must match color code of locator and insertion tool
(5) Withdraw tool from rear of plug. Pull back
slightly on wire to assure contact pin is locked. Remove
tool from wire.
(6) Slide strain relief over wires and install on
(5) to crimp, squeeze handles together fully
rear of connector.
until ratchet releases and allows handles to expand;
Section V. WIRING LISTS
3-33. Connector List Description
The connector list (fig. 3-15) provides a listing of all
This chapter describes wire information for the string,
connectors and pin numbers of an assembly in
connector and logic lists. The wire data may be used
alphanumeric sequence with the designated logic signal
during maintenance for replacement of damaged wiring.
on each pin. Non-wired connector pins are also listed.
The string, connector, and logic lists are used during
The connector list differs from the string list in that the
troubleshooting and signal tracing. Table 3-21 provides
connectors are listed in alphanumeric sequence, while
an explanation of the column titles used in the string,
connector and logic wire lists. How to use the wiring list
the string list lists the SIGNAL in alphanumeric