TM 1-1520-238-23
9-529
9.138.
COAXIAL MASS TERMINATION CONNECTOR (MTC) REPAIR
9.138.1. Description
This task covers:
Removal. Cleaning. Inspection. Repair. Installation.
9.138.2. Initial Setup
Tools:
Electrical tool kit (item 378, App H)
Light duty laboratory apron (item 27, App H)
Electrical power cable assembly (item 48, App H)
Gasoline engine generator set (item 153, App H)
Chemical protective gloves (item 154, App H)
Compressed air/nitrogen heating tool kit (item 164,
App H)
Raychem repair kit (item 193, App H)
Multimeter (item 215, App H)
Ohmmeter (item 218, App H)
Aircraft power unit (item 232, App H)
Adjustable air filtering respirator (item 262, App H)
Electric soldering iron (item 331, App H)
Special purpose tool (item 370, App H)
Materials/Parts:
Nitrogen (item 128, App F)
Solder (item 189, App F)
Personnel Required:
68X
Armament/Electrical System Repairer
68X3F
Armament/Electrical System Repairer/
Technical Inspector
References:
TM 1-1520-238-T
TM 55-1500-323-24
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
9.137
Mass termination connector (MTC) keyed (if
replacing connector)
WARNING
To prevent electrical shock or damage to sensitive electrical equipment, turn off and discon-
nect external and battery electrical power. Tag external battery power switch: Do not apply
electrical power.
This task is for repair of mass termination connectors (MTC) either on or off aircraft. Heating
tool kit requires 110 volt AC power and supply of regulated air. When working on aircraft,
nitrogen must be substituted for air to prevent danger of fire. Use generator set, power
cable, aircraft power unit, or nitrogen as necessary.
NOTE
This task is typical for cable or panel connectors with pin or socket connections. Two sizes of contacts
are used. Tasks for each size of coaxial cable are identical except for cable strips sizes given for both
sizes of cable.
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