*TB SIG 326
DEPARTMENT OF THE ARMY TECHNICAL BULLETIN
REPLACEMENT OF PRESSURE CRIMP-TYPE SOLDERLESS
CONNECTORS DURING FIELD MAINTENANCE
OF ARMY SIGNAL EQUIPMENT
Headquarters, Department of the Army, Washington 25, D. C.
25 January 1963
indicated for field maintenance (a above), except during
1. Purpose.
This bulletin establishes soldering as
the
production line operations. For connecting pressure
approved maintenance process for replacing defective
crimp-type solderless connectors to hookup wire under
pressure crimp-type solderless connectors during third
controlled production line operations (at base
and fourth echelon repair and maintenance of Army
maintenance activities), use the manufacturer's tools
Signal equipment.
and jigs in accordance with his installation and testing
instructions.
2. Exceptions. a. Replace defective pressure crimp-
type solderless connectors during field maintenance of
3. Instructions. Solder a pressure crimp-type solder-
Army Signal equipment in accordance with the soldering
less connector to the wire as follows:
instructions given in paragraph 3, except when pressure
crimp-type solderless connectors are used-
a. Remove the insulation from the end of the wire
so that the bare wire is the same length as the connector
(1) To terminate tinsel cordage.
ferrule and does not extend beyond the ferrule.
(2) In equipments whose performance may
be altered by solder or the heat from the
Caution
soldering process.
Do not nick the wire when stripping
(3) In equipments that generate heat greater
or cleaning.
than the melting point of soft solder.
(4) In enclosed areas such as Army aircraft,
b. Clean the bare wire with No. 000 sandpaper. If
vehicles, and shelters where the use of
sandpaper cannot effectively clean the bare wire, use a
heat-generating equipment such as
wire scraper.
soldering irons or guns and gas torches
constitute a safety hazard due to the
c. Tin the bare wire with rosin-core solder.
presence of explosive vapors from high
d. If the inside of the connector ferrule is oxidized,
octane fuel, oil, etc.
scrape it clean.
b. Replace the defective pressure crimp-type
e. If the connector has an insulator, remove the
solderless connectors during depot maintenance of
insulator.
Army Signal equipment in the same manner as
* This bulletin supersedes TB SIG 326, 26 November 1957.
TAGO 7733A
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