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ORIGINAL INSTRUCTIONS
Index Pawl
The MTA system uses the Insulation Displacement
Technique which is a method of inserting unstripped
wire into a slotted contact beam to form a reliable
electrical connection between the conductor and
contact.
408-6795
Test Connector
Contact (Partially
Removed)
Production Connector
Improper Cut
Lance
Wire Retainer
(Removed)
Front Beam
Right
Lead In
Wrong
Wrong
Contact Slot
Deformation
Figure 2
3.2. For Pistol Grip Pneumatic Handle Assembly
1. Perform the procedure outlined in Paragraph 3.1,
for Pistol Grip Manual Handle Assembly, Steps 1
through 4.
2. Inspect termination to ensure that conductor is
terminated past the lead-in transition and is
positioned about halfway into the contact slot. See
Figure 2.
3. Inspect termination to ensure that insulation is
2.03 to 2.54 mm [.080-.100 in.] beyond the front
contact beam.
4. If, upon inspection, it is determined that the wire
is not inserted deep enough, increase the air
pressure by 68.95 kPa [10 psi], and repeat the
termination and inspection procedure. Continue in
this manner until either the proper insertion depth is
obtained, or the air pressure is set to 482.6 kPa
[70 psi]. If the proper insertion depth is not reached
at 482.6 kPa [70 psi], return the air pressure to
275.8 kPa [40 psi] and follow the procedure in
Paragraph 3.3, Wire Insertion Depth Adjustment.
If the wire is inserted too deep, refer to the procedure
in Paragraph 3.3, Wire Insertion Depth Adjustment.
reduce the wire insertion depth by approximately
0.20 mm [.008 in.]. Repeat Steps 3, 4, and 5 or
Section 3, SETUP ADJUSTMENTS AND TEST.
Turn Clockwise to
Reduce Wire
Insertion Depth
Turn Counterclockwise
for Deeper Wire
Insertion
Adjuster
NOTE:
1/6 Turn Equals 0.20 mm [.008 in.] Adjustments.
Figure 3
4. TERMINATING PROCEDURE
(Figure 4)
1. Insert connector into left side of head as
indicated.
2. Align contact to be terminated with wire inserter.
3. Make sure index pawl rests between connector
index ribs.
4. Insert an unstripped wire into the funnel area
between contact and wire inserter until it bottoms on
tool base.
2
of 4
3.3. Wire Insertion Depth Adjustment
CAUTION
Use a 9/16-in. socket wrench or box wrench when
turning the adjuster. Do NOT use an open-end
wrench or pliers; both of these tools will deform or
!
nick the adjuster.
Wire Too Deep in Contact Slot -
If the wire is inserted
too deep, remove the head, and turn the adjuster 1/6
revolution CLOCKWISE (see Figure 3). This will
Rev
A
408-6795
Wires
Index Pawl
Index Rib
Left Side
of Head
Slide Spring
Tool Base
CAUTION:
Do NOT push the connector
through the tool from the right side. Otherwise,
damage to the slide spring may result.
Figure 4
5. Depress trigger (or squeeze cam handle) of pistol
grip handle assembly and hold it until inserter
bottoms or ratchet releases.
6. Release trigger (or cam handle). The inserter will
retract and the feed slide will automatically advance
connector to next contact position.
NOTE
The index pawl will move up and down as the
connector is automatically advanced through the
head. However, if movement is obstructed, or if
desirable, the index pawl can be depressed and the
connector moved manually out the RIGHT side of
the head.
6. TOOL CERTIFICATION
The procedures described in the following text have
been established to ensure quality and reliability of TE
terminating tools. A brief check should be made daily,
and a more detailed inspection should be scheduled
by your quality control group.
6.1. Daily Maintenance
Each operator should be aware of, and responsible for
the following:
1. Remove dust, moisture, and other contaminants
with a clean brush, or soft, lint-free cloth. Do NOT
use objects that could damage the tool.
2. Make sure all components are in place and
properly secured. (If NOT, return the tool to your
supervisor.)
3. Actuate handle assembly to ensure mechanisms
inside head move smoothly.
i
7. Repeat Steps 2 through 6 until all contacts have
been terminated.
8. Inspect each termination according to the
procedures in Section 5, INSPECTION.
5. INSPECTION
(Figure 2)
Inspect each termination to ensure the following:
1. Conductor is terminated past the lead-in
transition and about halfway in the contact slot.
2. Insulation is 2.03 to 2.54 mm [.080 to .100 in.]
beyond the front contact beam.
3. Wire is NOT bottomed in contact slot.
4. Contact beams are NOT deformed. If damage is
apparent, replace contacts in accordance with the
instructions packaged with the connector.
5. Insulation of wire is NOT nicked or cut in any area
other than the two wire slots.
6. Wire extends below the strain-relief features of
connector.
Rev
A
6.2. Quality Control Maintenance
Regular inspections should be performed by your
quality control personnel with a record of quality
control inspections remaining with the personnel
responsible for the tool. TE recommends one
inspection a month; however, operation training and
skill, amount of use, ambient working conditions, and
your company’s established standards are all factors
in establishing frequency of inspections.
These inspections should be done in the following
sequence:
1. Remove any accumulated film with a suitable
cleaning agent that will NOT affect plastic material.
3
of 4
408-6795
2. Make sure all components are in place and
properly secured. See Figure 5.
3. Make a few test terminations and inspect the
termination in accordance with Section 5,
INSPECTION.
4. Check for chipped, cracked, worn, or broken
areas. If damage is evident, repair is necessary.
See Section 7, REPAIR.
CUSTOMER SERVICE (038-035)
TYCO ELECTRONICS CORPORATION
PO BOX 3608
HARRISBURG PA 17105-3608
8. REVISION SUMMARY
•
Updated document to corporate requirements
•
New logo
7. REPAIR
Customer replaceable parts are listed in Figure 5.
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