408- 7773
3
of 4
Rev
C
5. MAINTENANCE AND INSPECTION
Tyco Electronics recommends that a maintenance
and inspection program be performed periodically to
ensure dependable and uniform terminations. Though
recommendations call for at least one inspection a
month, frequency of inspection depends on:
1. The care, amount of use, and handling of the
hand tool.
2. The presence of abnormal amounts of dust and
dirt.
3. The degree of operator skill.
4. Your own established standards.
The hand tool is inspected before being shipped;
however, Tyco Electronics recommends that the tool
be inspected immediately upon arrival to ensure that
the tool has not been damaged during shipment.
5.1. Daily Maintenance
1. Hand tool should be immersed (handles partially
closed) in a reliable commercial degreasing
compound to remove accumulated dirt, grease,
and foreign matter. When degreasing compound is
not available, tool may be wiped clean with a soft,
lint--free cloth. Do NOT use hard or abrasive
objects that could damage the tool.
2. Make certain that the retaining pins are in place
and that they are secured with retaining rings.
Do NOT remove retaining pins as permanent
damage to the tool may result. See Section 6,
REPLACEMENT AND REPAIR.
3. All pins, pivot points, and bearing surfaces
should be protected with a THIN coat of any good
SAE 20 motor oil. Do not oil excessively.
4. When the tool is not in use, keep handles closed
to prevent objects from becoming lodged in the
crimping dies. Store the tool in a clean, dry area.
5.2. Periodic Inspection
A. Lubrication
Lubricate all pins, pivot points, and bearing surfaces
with SAE 20 motor oil as follows:
Tool used in daily production -- lubricate daily
Tool used daily (occasional) -- lubricate weekly
Tool used weekly -- lubricate monthly
Wipe excess oil from tool, particularly from crimping
area. Oil transferred from the crimping area onto
certain terminations may affect the electrical
characteristics of an application.
B. Visual Inspection
1. Close tool handles until ratchet releases and
then allow them to open freely. If they do not open
quickly and fully, the spring is defective and must
be replaced. See Section 6, REPLACEMENT AND
REPAIR.
2. Inspect the head for worn, cracked, or broken
areas. If damage is evident, return the tool to
Tyco Electronics for evaluation and repair. See
Section 6, REPLACEMENT AND REPAIR.
Figure 4
66565--[ ]
1.07--0.86 [.042--.034]
Position Point on
Center of
Wire Barrel
Opposite Seam
Modified
Anvil
“A”
66566--[ ]
0.97--0.76 [.038--.030]
213605--[ ]
1.02--0.81 [.040--.032]
WIRE SIZE
AWG
(Max.)
CONTACT
NUMBER
(LP)
20
CRIMP SECT
WIRE SIZE
MARKING
(2) 24
24
22
1.12--0.91 [.044--.036]
20
CRIMP
HEIGHT
DIM. “A”
C. 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. Select a contact and
maximum
size wire for the
crimping chamber.
2. Refer to Section 3, CRIMPING PROCEDURE,
and crimp contact accordingly.
3. Using the crimp height comparator, measure the
wire barrel crimp height as shown in Figure 4. If the
crimp height conforms to that height, the tool is
considered dimensionally correct. If not, the tool
must be returned for evaluation and repair. See
Section 6, REPLACEMENT AND REPAIR.
CAUTION
