408-7235
3 of 4
Rev H
5. MAINTENANCE AND INSPECTION PROCEDURE
It is recommended 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:
— the care, amount of use, and handling of the
hand tool,
— the presence of abnormal amounts of dust and
dirt,
— the degree of operator skill, and
— your own established standards.
The hand tool is inspected before being shipped;
however, it is recommended 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.
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
jaws. 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 the tool handles until the 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 jaws for worn, cracked, or broken
areas. If damage is evident, return the tool for
evaluation and repair. See Section 6,
REPLACEMENT AND REPAIR.
C. Crimp Height Inspection
Crimp height inspection is performed through the use
of a micrometer with a modified anvil, commonly
referred to as a crimp-height comparator. TE does not
manufacture or market crimp-height comparators.
Detailed information on obtaining and using crimp-
height comparators can be found in Instruction Sheet
408-7424.
Proceed as follows:
1. Select a receptacle and maximum size wire for
each crimping chamber.
2. Refer to Section 3, CRIMPING PROCEDURE,
and crimp the receptacle accordingly.
3. 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,
return the tool for evaluation and repair. See Section
6, REPLACEMENT AND REPAIR.
Figure 4
D. Ratchet Inspection
1. Select a receptacle and maximum size wire for
the tool.
2. Position the receptacle and wire between the
jaws as described in Section 3, CRIMPING
PROCEDURE.
3. Hold the wire in place and squeeze the handles
until the ratchet releases. Hold the handles in this
position, maintaining just enough tension to keep
the jaws closed.
HAND TOOL
MAXIMUM WIRE
SIZE (AWG)
CRIMP HEIGHT
±0.10 [±.004]
90165-1
18
1.75 [.069]
14
1.80 [.071]
90166-1
18
1.40 [.055]
90166-2
Position Point on
Center of Wire Barrel
Opposite Seam
Modified
Anvil
Crimp Height
(See Table)
