408-2822 Datasheet, PDF (4/7 Pages) TE Connectivity Ltd – Crimping Die Assemblies

408- 2822
5. CRIMP INSPECTION
Inspect crimped terminals and splices by checking the
features described in Figure 3.
Use only the terminals and splices that meet
conditions shown in the “ACCEPT” column.
“REJECT” terminals and splices can be avoided
through careful use of instructions provided in the
machine manual and by performing regular die
maintenance as instructed in Paragraph 6 of this
Instruction Sheet.
6. DIE MAINTENANCE/INSPECTION PROCEDURE
DANGER ^{Disconnect power supply from tooling before any}
inspection, maintenance, adjustment, or repair.
TE Connectivity recommends that a
maintenance/inspection program be performed
periodically to ensure dependable and uniform
terminations. Frequency of inspection may be
adjusted to suit your requirements through
experience.
Frequency of inspection depends on:
1. The care, amount of use, and handling of the
dies.
2. Type and size of products being crimped.
3. Skill level of the operator.
4. Presence of abnormal amounts of dust and dirt.
5. Your own established standards.
6.1. Initial Die Inspection
The dies are thoroughly inspected before shipping.
The dies should be inspected immediately upon
arrival at your facility to ensure the dies have not
been damaged during shipment, and that they
conform to Figure 7. If the dies are damaged upon
arrival, retain the shipping container, file a claim with
the carrier, and notify TE immediately.
6.2. Daily Maintenance
It is recommended that each operator of the dies be
made aware of — and responsible for — the following
four steps of daily maintenance.
1. Remove dust, moisture, and other contaminants
from the dies with a clean brush, or a soft, lint--free
cloth. Do NOT use objects that could damage the
dies.
2. Check the die alignment and tighten the die
holding screws regularly.
3. Make certain the dies are protected with a THIN
coat of any good SAE No. 20 motor oil. Do NOT oil
excessively.
4. When the dies are not in use, store them in a
clean, dry area.
6.3. Periodic Inspection
Regular inspections should be performed by quality
control personnel. A record of scheduled inspections
should remain with the dies and/or be supplied to
supervisory personnel responsible for the dies.
Though recommendations call for at least one
inspection a month, the inspection frequency should
be based on the amount of use, ambient working
conditions, operator training and skill, and established
company standards. These inspections should be
performed in the following sequence:
6.4. Visual Inspection
1. Remove all lubrication and accumulated film by
immersing the dies in a suitable commercial
degreaser that will not affect paint or plastic
material.
2. Make sure all die holding screws, retaining
rings, and die components are in place. Refer to
the parts list in Figure 8 if replacements are
necessary.
3. Check all bearing surfaces for wear. Remove
and replace worn components.
4. Inspect the crimp area for flattened, chipped
cracked, worn, or broken areas. Although dies may
gage within permissible limits, worn or damaged
die closure surfaces are objectionable and can
affect the quality of the crimp. See Figure 4. If
damage is evident, the dies must be repaired
before returning them to service (See Paragraph 7,
DIE REPLACEMENT AND REPAIR).
6.5. Die Closure Inspection
Every die set is inspected for proper die closure
dimensions before packaging. However, inspection of
die closure for excessive wear is required periodically.
Die closure inspection is accomplished using plug
gages.
TE neither manufactures nor sells plug gages. A
suggested plug gage design and the GO and NO--GO
dimensions for plug gage elements are given in
Figures 5 and 6. For additional information concerning
the use of a plug gage, refer to Instruction Sheet
408--7424.
Clean oil or dirt from the die closure surfaces,
bottoming surfaces, and plug gage elements.
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