408-8579
3
of 5
Rev
C
6. Allow the tool handles to open fully and remove
the crimped connector from the dies.
Damaged product should not be used. If a
damaged contact or ferrule is evident, it should be
replaced with a new one.
5. CRIMP HEIGHT ADJUSTMENT
(Figure 4)
The tool frame assembly ratchet mechanism features
an adjustment wheel with numbered settings. If the
crimp height is not acceptable, adjust the ratchet as
follows:
1. Remove the lockscrew from the ratchet
adjustment wheel.
2. With a screwdriver, adjust the ratchet wheel from
the opposite side of the tool.
Figure 4
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.
5. Make a sample crimp and measure the crimp
height. If the crimp height is acceptable, secure the
lockscrew. If the dimension is unacceptable, remove
lockscrew and continue to adjust the ratchet, and
again measure a sample crimp.
6. MAINTENANCE AND INSPECTION
6.1. Maintenance
1. Remove dust, moisture, and other contaminants
with a clean, soft brush, or a clean, soft, lint-free
cloth. Do NOT use any objects that could damage
the dies or tool.
2. Make sure that the proper die-retaining screws
are properly secured.
3. When the dies are not in use, store them in a
clean, dry area.
4. Store the tool with the tool handles closed to
prevent objects from becoming lodged within the
jaws.
6.2. Inspection
1. Remove all lubrication and accumulated film from
the dies by immersing the dies in a suitable
commercial degreaser.
2. Make certain that all die-retaining screws and die
components are properly secured.
3. Inspect the crimping surfaces for flattened,
chipped, worn, or cracked areas. If damage is
evident, the dies must be replaced. Refer to Section
7, REPLACEMENT.
6.3. Measuring the Die Opening
The die assembly will perform correctly as long as:
•
the product specified is correct for the application,
•
the specific die assembly is used,
•
the die assembly has been measured to ensure
that the openings are correct, and
•
the tool has been adjusted correctly. Figure 5
provides information on die opening sizes.
Die assembly 91901-1 will require a center contact
crimp height inspection using a micrometer with a with
a modified anvil as shown in Figure 6. Tyco
Electronics does not manufacture or market these
gages. However TE recommends use of the modified
micrometer (Crimp Height Comparator) found in
408-7424. Refer to 408-7424 for instructions and
ordering information of the crimp height comparators.
Proceed with center contact crimp height inspection as
follows:
1. Select an appropriate center contact and cable.
2. Crimp a test center contact.
3. Using crimp height comparator, measure wire
barrel crimp height as shown in Figure 6. If the
crimp height conforms to that shown in the table,
the tool is considered dimensionally correct. If not,
return the tool to Tyco Electronics for evaluation and
repair (refer to Section 7, REPLACEMENT).
CAUTION
!
Screwdriver
Ratchet Adjustment
Wheel
Lockscrew (Typ)
