Datasheet

408-8917
4 of 5
Rev B
1. Remove the lockscrew from the ratchet
adjustment wheel. Refer to Figure 4.
2. Using a screwdriver, adjust the ratchet wheel
from the front 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-install the lockscrew.
Figure 4
5. Make a sample crimp. If the crimp is acceptable,
the adjustment setting is correct. If the crimp is
unacceptable, continue to adjust the ratchet, and
again measure a sample crimp.
6. CRIMP HEIGHT INSPECTION
Crimp height inspection is performed using a
micrometer with a modified anvil, commonly referred
to as a crimp height comparator. Refer to instruction
sheet 408-7424 for detailed information on obtaining
and using a crimp height comparator. Proceed as
follows:
1. Refer to Figure 5 and select a maximum size wire
for each crimping chamber.
2. Crimp the contacts according to Section 3,
CRIMPING PROCEDURE.
3. Using the crimp height comparator, measure the
wire barrel crimp height as shown in Figure 5. If the
crimp height conforms to the dimension given, the
tool is considered dimensionally correct. If not, the
tool must be adjusted according to Paragraph 5.2,
Ratchet Adjustment.
7. MAINTENANCE AND INSPECTION
7.1. Maintenance
1. Ensure that the tool frame and dies are clean by
wiping them with a clean, soft cloth. Remove any
debris with a clean, soft brush. Do not use objects
that could damage any components.
Figure 5
2. When not in use, keep tool handles closed to
prevent objects from becoming lodged in the dies,
and store in a clean, dry area.
3. Remove all lubrication and accumulated film from
the dies by immersing the dies in a suitable
commercial degreaser.
7.2. Visual Inspection
1. Inspection of the tool and dies should be made on
a regular basis to ensure that they have not become
worn or damaged.
2. Make sure that the proper die retaining screws
are properly secured.
3. Inspect the crimping chambers of the die
assembly for flattened, chipped, worn, or broken
areas. If damage or abnormal wear is evident, the
dies must be replaced. Refer to Section 8.
8. REPLACEMENT AND REPAIR
Customer-replaceable parts are shown in Figure 1.
Available separately, Repair Kit 679221-1 includes a
replacement nut and a variety of pins, rings, screws,
and springs. If the dies are damaged or worn
excessively, they must be replaced.
Order the repair kit, tool assembly, and die assembly
through your representative, or call 1-800-526-5142,
or send a facsimile of your purchase order to
717-986-7605, or write to:
CUSTOMER SERVICE (038-035)
TYCO ELECTRONICS CORPORATION
PO BOX 3608
HARRISBURG PA 17105-3608
9. REVISION SUMMARY
Revisions to this instruction sheet include:
• Changed company name and logo
Screwdriver
Lockscrew
Ratchet Adjustment
Wheel
DIE
ASSEMBLY
MAXIMUM
WIRE SIZE
(AWG)
CRIMPING
CHAMBER
(Wire Size
Marking)
DIMENSION A
(mm [in.])
CRIMP HEIGHT
±0.051 [±.002]
91387-2
24 26-24 0.79 [.031]
22 22 0.89 [.035]
Position Point
on Center of
Wire Barrel
Opposite Seam
Modified
Anvil
A
(See Table)