TM 1-1520-238-23
Change
4
9-527
9.137.
MASS TERMINATION CONNECTOR (MTC) KEYING
9.137.1. Description
This task covers:
Installation.
9.137.2. Initial Setup
Tools:
Electrical tool kit (item 378, App H)
Light duty laboratory apron (item 27, App H)
Chemical protective gloves (item 154, App H)
Adjustable air filtering respirator (item 262, App H)
Materials/Parts:
Adhesive (item 13, App F)
Personnel Required:
68X
Armament/Electrical System Repairer
68X3F
Armament/Electrical System Repairer/
Technical Inspector
References:
TM 1-1520-238-23P
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
9.137.3. Installation
NOTE
New keys are provided with MTC as-
sembly, when issued from supply.
Keying task is the same for both plug
and receptacle end of MTC.
a. Identify and record part number of MTC (1)
being replaced (TM 1-1520-238-23P).
NOTE
Table 9-1 is used to key MTC. The
seventh character in the part number de-
termines the position of keying pins.
Match the letter character from the part
number with corresponding letter on
Table 9-1.
b. Determine correct position of two keying pins
(2).
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M04-3527-1
