408-8377 Datasheet, PDF (4/6 Pages) Tyco Electronics – Cumulative Trauma Disorders can result from the prolonged use ofmanually powered hand tools

PRO- CRIMPER III Hand Crimping Tool Assembly 91338- 1
408- 8377
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.
5. 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.
6. Insert stripped wire into contact insulation and
wire barrels until it is butted against the wire stop,
as shown in Figure 3.
7. Holding the wire in place, squeeze tool handles
together until ratchet releases. Allow tool handles
to open and remove crimped contact.
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).
8. Check the contact crimp height as described in
Section 6, CRIMP HEIGHT INSPECTION. If
necessary, adjust the crimp height as described in
Section 7, RATCHET 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.
To measure the crimp height:
1. Refer to Figure 4 and select a wire (maximum
size) for each crimp section listed in the table.
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 7, RATCHET (Crimp
Height) ADJUSTMENT.
For additional information concerning the use of the
crimp height comparator, refer to Instruction Sheet
408--7424.
7. RATCHET (Crimp Height) ADJUSTMENT (Figure 5)
1. Remove the lockscrew from the ratchet
adjustment wheel.
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. Re--assemble the lockscrew.
5. Make a sample crimp and measure the crimp
height. If the dimension is unacceptable, continue
to adjust the ratchet, and again measure a sample
crimp.
Screwdriver
Position Point on
Center of Wire
Barrel Opposite
Seam
“A”
+.05
+[.002]
Ratchet Adjustment
Wheel
Modified
Anvil
Lockscrew
(Typ)
Wire Size
AWG (Max.)
Crimp Section
Marking
Crimp Height
Dimension “A”
20
20
1.07 [.042]
18
18
1.19 [.047]
Figure 4
2. Crimp the contact(s) according to the
procedures provided in Section 5, CRIMPING
PROCEDURE.
Figure 5
4 of 6
Tyco Electronics Corporation
Rev A