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2-21028-4 Datasheet(PDF) 4 Page - Tyco Electronics

Part # 2-21028-4
Description  Hydraulic Crimping
Download  6 Pages
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Manufacturer  MACOM [Tyco Electronics]
Direct Link  http://www.macom.com
Logo MACOM - Tyco Electronics

2-21028-4 Datasheet(HTML) 4 Page - Tyco Electronics

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408- 8910
Hydraulic Crimping Head 1673672- 1
Rev B
4
of 6
Tyco Electronics Corporation
7. INSPECTION/MAINTENANCE
Make sure hydraulic pressure is released and
power supply is disconnected before following
inspection and maintenance procedures, unless
otherwise specified in the procedure.
Each crimping head is assembled and inspected
before shipment. It is recommended that the crimping
head be inspected immediately upon its arrival at your
facility, and at regularly scheduled intervals, to ensure
that the crimping head has not been damaged during
handling. Frequency of inspection depends upon the
following: care, amount of use, and handling of the
head; type and size of products crimped; degree of
operator skill; and environmental conditions.
7.1. Cleaning
Remove accumulations of dirt and grease on the
crimping head, especially in areas where dies are
installed and terminals are crimped. Clean the entire
head frequently with a clean, lint--free cloth.
7.2. Visual Inspection
Refer to Figure 6 and proceed as follows:
1. Visually inspect die closure surfaces for
chipped, pitted, or flattened areas.
Figure 6
Chipped
Area
Pitted
Area
Flattened
Area
Check
These
Areas for
Cracks
Check for
Excessive Wear
at all Pivot Points
2. With hydraulic pressure released, inspect the
assembled head for nicks, scratches, and cracks.
Inspect for cracks especially at the corners of the
yoke and around the top of the cylinder.
3. Inspect pivot pin holes and latch pin holes for
wear. Replace parts, as needed.
4. Activate power unit. Raise ram to UP position.
Inspect flat and round surfaces of ram for galling
(fretting or wear by friction), cracks, or oil leakage.
Release pressure and make sure that ram retracts
smoothly.
5. If head shows evidence of galling, cracks, oil
leakage, or rough cycling, return the crimping head
to for repairs. (Refer to Section 8, REPLACEMENT
AND REPAIR).
It is recommended that the head be returned to
Tyco Electronics once a year (or every 7,500
cycles) for magnetic particle inspection. Refer to
Instruction Sheet 408--8909.
7.3. Die Closure Inspection
Every crimping head die set is inspected for proper
die closure before shipment. However, the dies
should be inspected for excessive wear periodically.
Die closure is accomplished using GO/NO--GO plug
gages. Suggested plug gage design and GO/NO--GO
dimensions are shown in Figure 7.
Tyco Electronics neither manufactures nor sells
plug gages.
1. Clean the oil and dirt from the closure surfaces,
and plug gage members.
2. Lock the desired nest in the crimp position and
raise the indenter to the full UP position, as shown
in Figure 8, Detail A.
3. With the indenter positioned at the full UP
position, inspect the die closure using the
appropriate plug gage. Hold the gage in alignment
with die closure and carefully insert, without
forcing, the GO member. See Figure 8. The GO
member must pass completely through the die
closure as shown in Figure 8, Detail B.
4. Try to insert the NO--GO member. The NO--GO
member may enter partially, but must NOT pass
completely through the die closure. See Figure 8,
Detail B.
5. If the die closure meets the GO/NO--GO gage
conditions, the die closure is considered
dimensionally correct. If the die closure does not
conform with the GO/NO--GO gage conditions,
contact your local Tyco Electronics Representative.
DANGER
NOTE
i
NOTE
i


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