2M Series Assembly Instructions
Micro 38999
Wire Stripping
Stripping Dimensions
1. Strip wire to required length. (See Figure at right). When using hot wire stripping, do not wipe melted insulation material on wire strands; with mechanical strippers do not cut or nick strands. 2. See Table 1 for proper finished outside wire dimensions. 3. Twist strands together to form a firm bundle. 4. Insert stripped wire into contact applying slight pressure until
Wire Size
A
23 .115 (2.92) 20/20HD .188 (4.77) 16 .188 (4.77) 12 .188 (4.77)
A
wire insulation butts against wire well. Check inspection hole to see that wire strands are visible. If there are strayed wire strands, entire wire end should be re-twisted. When wire is stripped and properly installed into contact, the next step is to crimp the wire inside the contact by using the proper crimping tool.
Table 1
Wire Dimension (inches)** Min. Max.
Contact Size
10 12 16
.135 .097 .065 .040 .025
.162 .142 .109 .077 .048
Crimping See table on preceding page for more information on crimp contacts, contact tools, and crimp tensile strength 1. Insert stripped wire into contact crimp pot. Wire must be visible through inspection hole. 2. Using correct crimp tool and locator, cycle the tool once to be sure the indentors are open, insert contact and wire into locator. Squeeze tool handles firmly and completely to insure a proper crimp. The tool will not release unless the crimp indentors in the tool head have been fully actuated. 3. Release crimped contact and wire from tool. Be certain the wire is visible through inspection hole in contact.
20/20HD
23
** Min. diameters to insure moisture proof as- sembly; max. diameters to permit use of metal removal tools.
VISUAL INSPECTION HOLE
Examples of M22520 Series Crimping Tools: Shown top: tool used for small size 23 contacts. Shown bottom: tool used for size 20, 16 or 12 contacts and has a positioner that can be dialed for each contact size.
Contact Insertion 1. First remove hardware from the plug and receptacle and slide the hardware over wires in proper sequence.
3. Next align the tool and contact up to the properly identified cavity at rear of connector plug. Use firm, even pressure; do not use excessive pressure. It is recommended to start at the center cavity. Contact must be aligned with grommet hole and not inserted at an angle. Push forward until contact is felt to snap into position within insert.
2. Use proper plastic or metal insertion tool for corresponding contact. (Consult Insertion Tool table on preceding page). Slide correct tool (with plastic tool use colored end) over wire insulation and slide forward until tool bottoms against rear contact shoulder.
Plastic tool with contact in proper position.
Note: All plastic tools are double-ended. The colored side is the insertion tool and the white side is the removal tool.
JB
Metal tool with contact.
Continued on next page.
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Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com
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