408-4345 Datasheet, PDF (4/5 Pages) TE Connectivity Ltd – PRO-CRIMPER III Hand Crimping

408-4345
Refer to the table in Figure 1 and select wire of the specified size and insulation diameter. Strip the wire to the
length indicated in Figure 1, taking care not to nick or cut wire strands. Select an applicable contact and identify
the appropriate crimp section according to the wire size markings on the tool. Refer to Figure 3 and proceed as
follows:
1. Hold the tool so that the back (wire side) is facing you. Squeeze 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
tool and into the appropriate crimp section.
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 and insulation barrels must face the top of the tool. Place the contact up into
the nest so that the movable locator drops into the slot in the contact. Refer to Figure 3. Butt the front
end of the wire barrel against the movable locator.
CAUTION
Make sure that both sides of the insulation barrel are started evenly into the crimping section. Do not attempt to crimp an
improperly positioned contact.
4. Hold the contact in position 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 stripped wire (with the wire seal) into contact insulation and wire barrels until it is butted against
the wire stop, as shown in Figure 3.
6. Holding the wire in place, squeeze tool handles together until ratchet releases. Allow tool handles to
open and remove crimped contact.
NOTE
The crimped contact may stick in the crimping area, but the contact can be easily removed by pushing downward on the top of
the locator (see Figure 3).
7. Check the contact crimp height as described in Section 6, Crimp Height Inspection. If necessary,
adjust the crimp height as described in Section 7, CRIMP HEIGHT ADJUSTMENT.
6. CRIMP HEIGHT INSPECTION
This inspection requires the use of a micrometer with a modified anvil. Tyco Electronics recommends referring
to Instruction Sheet 408-7424 for use on these type of micrometers.
Proceed as follows:
1. Refer to Figure 4 and select a wire (maximum size) for each crimp section listed.
2. Refer to Section 5, CRIMPING PROCEDURE, and crimp the contact(s) accordingly.
3. Using a crimp height comparator, measure the wire barrel crimp height as shown in Figure 4. If the
crimp height conforms to that shown in the table, the tool is considered dimensionally correct. If not,
the tool must be adjusted. Refer to Section 7, CRIMP HEIGHT ADJUSTMENT.
Position Point on
Center of Wire
Barrel Opposite
Seam
Refer to Table
in Figure 1 for
Crimp Height
Modified Anvil
Figure 4
7. CRIMP HEIGHT ADJUSTMENT (Figure 5)
1. Remove the lockscrew from the ratchet adjustment wheel.
Rev B
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