408-8853 Datasheet, PDF (2/3 Pages) TE Connectivity Ltd – Hex Crimping Die

408-8853
3. Thread, but do not tighten, the die retaining
screws into the holes.
4. Carefully close the tool handles, making sure that
the dies align properly.
5. Tighten the die retaining screws with the
appropriate hex wrench.
4. CRIMPING PROCEDURE
NOTE
i
This tool will not provide a crimp conforming to
military requirements, nor can it be used on mil-
type connectors.
Before proceeding with crimping, determine the proper
tool and setting to provide the center conductor crimp.
Follow the manufacturer's recommended procedure.
1. Make sure that the connector ferrule has been
placed onto the cable, and that the cable braided
shield is flared away from the cable.
2. Crimp the center contact by sliding it onto the
stripped center conductor of the coaxial cable until it
is butted against the dielectric, placing the center
contact in the smallest crimping chamber of the
anvil die, and closing the tool handles until the
ratchet releases.
3. Insert the crimped center contact into the
connector body until the cable dielectric butts
against the dielectric inside of the connector body or
until the center contact is securely positioned within
the connector. Make sure that the braided shield is
over the support sleeve of the connector body, and
that no strands from the shield enter the connector
body.
4. Slide the ferrule over the braided shield and onto
the connector until the ferrule butts against the
shoulder on the connector body.
5. Place the ferrule on the appropriate crimping
chamber of the anvil die so that the shoulder on the
connector body is close to the edge of the die.
NOTE
i
To determine the appropriate crimping chamber,
observe the markings above the crimping
chambers, and refer to the instructions packaged
with the connector.
6. While holding the assembly together, begin to
close the tool handles. Keep holding the assembly
until the dies have closed enough to clamp the
assembly in place.
7. Carefully close the tool handles until the ratchet
releases.
8. Allow the tool handles to open fully and remove
the crimped connector from the dies.
CAUTION
!
Damaged product must not be used. If damaged
product is evident, it must be cut from the wire and
replaced with a new one. Contacts or connectors
must not be reterminated.
5. MAINTENANCE AND INSPECTION
5.1. Daily Maintenance
1. Remove dust, moisture, and other contaminants
with a clean, soft brush, or a clean, soft, lint-free
cloth. Do NOT use any objects that could damage
the dies or tool.
2. Make sure that the proper die retaining screws
are properly secured.
3. When the dies are not in use, store them in a
clean, dry area. When the tool is not in use, store it
with the handles closed to prevent objects from
becoming lodged within the jaws.
5.2. Visual Inspection
1. Remove all lubrication and accumulated film from
the dies by immersing the dies in a suitable
commercial degreaser.
2. Make certain that all die retaining screws and die
components are properly secured.
3. Inspect the crimping surfaces for flattened,
chipped, worn, or cracked areas. If damage is
evident, the dies must be replaced. Refer to 
Section 6, REPLACEMENT.
5.3. Measuring Die Opening
The die assembly will perform correctly as long as: 
(1) the product specified is correct for the application,
(2) the specific die assembly is used, 
(3) the die assembly has been measured to ensure
that the openings are correct, and 
(4) the die assembly bottoms.
Figure 3 provides information on die opening sizes.
For specific applications where wire stiffness, material,
or insulation may give different than standard
performance, it may be necessary to measure the
crimped ferrule, rather than to verify the size of the die
opening. This inspection requires the use of a cone or
modified micrometer (Crimp Height Comparator).
Refer to 408-7424 for operating information and
ordering information concerning crimp height
comparators.
Rev A
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