408-4352 Datasheet, PDF (4/6 Pages) TE Connectivity Ltd – PRO-CRIMPER III Hand Crimping

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 the ratchet engages
sufficiently to hold the contact in position. Do NOT deform the wire barrel or insulation barrel.
5. Insert stripped wire 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's crimp height as described in Section 6, Crimp Height Inspection. If necessary,
adjust the crimp height as described in Section 7, RATCHET (Crimp Height) ADJUSTMENT.
6. CRIMP HEIGHT INSPECTION
Crimp height inspection is performed through the use of a micrometer with a modified anvil, commonly referred
to as a crimp-height comparator. Tyco Electronics does not manufacture or market crimp-height comparators.
Detailed information on obtaining and using crimp-height comparators can be found in instruction sheet
408-7424.
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, RATCHET ADJUSTMENT.
Point on Center
of Wire Barrel
Opposite Seam
Modified Anvil
Crimp Height
(Refer to
Table)
MAXIMUM
WIRE SIZE
(AWG)
18
14
CRIMPING CHAMBER
(Wire Size Marking)
20-18
16-14
CRIMP HEIGHT
(±0.05 [±.002])
1.27 [.050]
1.60 [.063]
Figure 4
7. RATCHET (Crimp Height) ADJUSTMENT (Figure 5)
1. Remove the lockscrew from the ratchet adjustment wheel. Refer to Figure 5.
2. With a screwdriver, adjust the ratchet wheel from the locator side of the tool.
3. Observe the ratchet adjustment wheel. If a tighter crimp is required, rotate the adjustment wheel
COUNTERCLOCKWISE to a higher-numbered setting. If a looser crimp is required, rotate the
adjustment wheel CLOCKWISE to a lower-numbered setting.
4. Replace the lockscrew.
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