408-8739 Datasheet, PDF (3/6 Pages) TE Connectivity Ltd – Cumulative Trauma Disorders can result from the prolonged use of manually powered hand tools

408-8739
4. CRIMPING PROCEDURE
NOTE
i
This tool is provided with a contact support and a
crimp adjustment feature. Initially, the contact
support should be checked as specified in
Paragraph 5.1, and the crimp and crimp height
should be verified as specified in Paragraph 5.2,
Ratchet Adjustment and Paragraph 6.3, Crimp
Height Inspection, and before using the tool.
Refer to Figure 1, and select a contact for the wire size
being used. Strip the wire to the length indicated in
Figure 1, taking care not to nick or cut wire strands.
Identify the appropriate crimping chamber according
to the wire size markings on the die assembly. Refer to
Figure 3, and proceed as follows:
1. Squeeze the tool handles together and allow
them to open fully.
2. Holding the contact by the mating end, insert the
contact, insulation barrel first, through the front of
the appropriate crimping chamber.
3. Position the contact so that the mating end of the
contact is on the locator side of the tool and so that
the open "U" of the wire barrel faces the top of the
tool. Place the contact up into the nest of the die so
that the locator drops into the wire stop slot in the
contact. Refer to Figure 3. Butt the front end of the
wire barrel against the locator. Make sure that the
wire stop enters the contact wire stop slot between
the wire barrel and contact shoulder.
CAUTION
!
Make sure that both sides of the contact insulation
barrel are started evenly into the crimping chamber.
Do not attempt to crimp an improperly positioned
contact.
4. Hold the contact in place, and squeeze the tool
handles together until ratchet engages sufficiently to
hold the contact in position. DO NOT deform
insulation barrel or wire barrel.
5. Insert the stripped wire into the contact insulation
barrel and wire barrel until it butts against the wire
stop as shown in Figure 3.
CAUTION ^{DO NOT use defective or damaged products.}
!
5. TOOL ADJUSTMENTS
5.1. Contact Support Adjustment
NOTE
i
The contact support is preset prior to shipment, but
minor adjustment may be necessary.
Make a sample crimp and determine if the contact is
straight. If the contact is bending upward or downward,
make an adjustment as follows:
1. Loosen the screw that holds the contact support
onto the locator assembly.
NOTE
i
The ratchet has detents that create audible clicks
as the tool handles are closed.
2. Place a contact and wire into the proper nest, and
close the tool handles until the ratchet reaches the
sixth click or until the contact support touches the
contact.
3. Slightly loosen the nut that holds the locator
assembly onto the tool frame.
4. Move the contact support as required to eliminate
the bending of the contact.
5. Tighten the nut, and close the handles until the
ratchet releases.
Back (Wire Side)
of Tool
Lower Terminal
Support
Strip Length
Nest
Contact Insulation
Barrel
Wire
Locator in Contact
Wire Stop Slot
Wire
Contact (Ref)
Dies
Rev B
Figure 3
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