408-8378 Datasheet, PDF (3/5 Pages) Tyco Electronics – Cumulative Trauma Disorders can result from the prolonged use ofmanually powered hand tools.

PRO- CRIMPER III Hand Crimping Tool Assembly 91337- 1
408- 8378
refer to Figure 1, and select wire of the specified size
and insulation diameter. Strip the wire to the length
indicated, taking care not to nick or cut wire strands.
Select an applicable contact and identify the
appropriate3e crimping chamber according to the wire
size markings on the tool.
Refer to Figure 3, and proceed as follows:
1. Hold the tool so that the front (locator side) is
facing you. Squeeze tool handles together and
allow them to open fully.
2. Insert the contact—mating end first—into the
appropriate crimping chamber. Make sure that the
open “U” of the wire barrel and insulation barrel
face the stationary jaw.
3. Make sure that the wire stop enters the contact
wire stop slot between the wire barrel and contact
shoulder.
NOTE
i
The crimped contact may stick in the crimping
area, but can be removed by pushing downward
on the top of the locator (see Figure 3).
7. Check the contact crimp height as described in
Section 5, CRIMP HEIGHT INSPECTION. If
necessary, adjust the crimp height as described in
Section 6, RATCHET (Crimp Height)
ADJUSTMENT.
5. 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.
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.
To measure the crimp height:
1. Refer to Figure 4 and select a wire (maximum
size) for each crimp section listed in the table.
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 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.
2. Crimp the contact(s) according to the
procedures provided in Section 4, CRIMPING
PROCEDURE.
3. Using the crimp height comparator, measure the
wire barrel crimp height as shown in Figure 4. If the
crimp height conforms to the dimensions provided
in Figure 4, then the tool is considered
dimensionally correct. If the crimp height does not
conform to the dimensions provided, the tool must
be adjusted. Refer to Section 6, RATCHET (Crimp
Height) ADJUSTMENT.
Locator
Tool Stationary Jaw
Contact
Wire
Wire Strip Length
Rev A
Locator in Contact
Wire Stop Slot
Figure 3
Tyco Electronics Corporation
Wire Inserted to
Locator Wire Stop
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