Instruction Sheet
Mass Insertion Terminating Head 58644-1
for MTA (Mass Termination Assembly) 100
Feed-Through Receptacle Connectors
408-4406
28 OCT 11 Rev C
Wire Guide
Ram
Wire Inserter
Locating Pawl (Hidden)
Insertion Rod Adjuster
Push Rod
Figure 1
1. INTRODUCTION
Mass Insertion Terminating Head 58644-1, shown in
Figure 1, is designed to terminate MTA 100 feedthrough receptacle connectors (positions 2 through
12) onto discrete wire sizes 28 through 22 AWG with a
maximum insulation diameter of 1.27 mm [.050 in.].
Refer to Figure 2 for reference connector part
numbers.
NOTE
This head is designed to terminate one connector
at a time.
i
NOTE
i
A complete list of current connector part numbers
cannot be maintained on this document. For all part
numbers and their description, refer to Catalog
82056 or contact Product Information at the
number at the bottom of this page.
The head is used with Pistol Grip Manual Handle
Assembly 58074-1. For terminating head installation
procedures, and setup and operation of the handle
assembly, refer to Instruction Sheet 408-6790. Read
this and the referenced material before terminating
any connectors.
NOTE
i
Reasons for reissue are provided in Section 8,
REVISION SUMMARY.
2. DESCRIPTION (Figure 1)
The terminating head, when properly installed onto the
handle assembly, serves as a guide for the connector
during termination.
Features of the head and their functions are as
follows:
Wire Inserter-supports each wire in individual wire
slots so that, during the insertion cycle, the wire forced
into the two-slotted beam of the contact.
Wire Guide-holds the wires in position over the wire
inserter.
Ram-locates and holds the connector while pushing it
down onto the wires.
Locating Pawl-holds connector in proper alignment to
the wire inserter.
Push Rod-used to push the terminated connector past
the locating pawl for removal.
Insertion Rod Adjuster-is a piston for the ram and
regulates the travel of the inserted wires.
Dimensions on this sheet are in metric units [with
U.S. customary units in brackets]. Figures are not
drawn to scale.
© 2011 Tyco Electronics Corporation, a TE Connectivity Ltd. Company
All Rights Reserved
*Trademark
TOOLING ASSISTANCE CENTER 1-800-722-1111
PRODUCT INFORMATION 1-800-522-6752
This controlled document is subject to change.
For latest revision and Regional Customer Service,
visit our website at www.te.com
TE Connectivity, TE connectivity (logo), and TE (logo) are trademarks. Other logos, product and/or Company names may be trademarks of their respective owners.
1 of 5
LOC B
408-4406
WIRE SIZE
(AWG)
MTA 100 FEED-THROUGH RECEPTACLE CONNECTORS
(With Locking Ramp)■
COLOR CODE
WITH POLARIZING TABS
WITHOUT POLARIZING TABS
22
Red
644540
640620
24
White
644563
640621
26
Blue
644564
640622
28
Green
644565
640623
■ Dash numbers indicate number of contact positions (-2 through -12 are applicable for this terminating head).
Figure 2
Each wire is terminated in a connector contact using
the insulation displacement technique (a terminating
technique which inserts unstripped wire into a slotted
contact beam to form a reliable electrical connection
between the wire and the contact). Contact
termination is complete when the handle assembly is
actuated.
3. SETUP
3.1. Installing Head
Installing Head As
Harness Board Fixture
Handle
Assembly
(Ref)
The head can be installed onto the handle assembly
and used as a hand-held tool, or several tools can be
mounted onto a board to be used as a low-level
harness board fixture.
The board must have two 6.36-mm [.250-in.] holes
spaced 44.45 mm [1.75 in.] apart for each head.
Secure each head with screws. See Figure 3.
NOTE
i
The handle assembly is not quick to install onto the
head; therefore, each head should have its own
handle assembly.
3.2. Test Termination
At least one test termination should be performed and
inspected before starting production. Determine the
wire size and select the appropriate color-coded
connector.
1. Using a small knife, cut off the wire retainers
(strain relief) from both sides of the test connector.
See Figure 4.
NOTE
i
Wire retainers must be removed from test
connectors to provide a clear view for inspection-do
NOT use test connectors for production
applications.
2. Terminate the test connector according to Section
4 and inspect the connector following the
requirements in Step 6. Make any insertion depth
adjustments to the terminating head according to
Section 5 before starting production.
Rev C
Figure 3
4. TERMINATING PROCEDURE
1. Starting with the wire slot closest to the head
frame, push one wire into one slot for each contact
position of the connector being terminated. See
Figure 5.
2. Insert the connector into the ram with the contact
insulation barrels facing the wire slots.
3. Using a screwdriver (or equivalent), push the
connector into the ram until the connector touches
the surface of the frame. Refer to Figure 5.
NOTE
i
To ensure proper alignment in the head, all
connector positions must touch the surface of the
head frame.
2 of 5
408-4406
Terminated Production Connector
Terminated Test Connector
Contact Slot
Contact Partially
Removed for
Inspection
Lead-In
Transition
Wire Retainers Removed
(Both Sides)
No Deformation of
Contact Beam
No Cuts
in Wire
Figure 4
6. Then grip the wires on both sides of the
connector and carefully guide the connector out of
the ram.
Wire Inserted into Wire Slot
Ram
Handle Assembly
7. Refer to Figure 4 and visually inspect the
connector according to the following. If wire
insertion depth is found to be improper, refer to
Section 5 for head adjustments.
CAUTION Wire insulation tends to return to form after being
compressed. It is important to inspect the
connector within five minutes of termination;
!
otherwise, an improper inspection may result.
• Conductors are terminated past the lead-in
transition and halfway into the contact slot.
• Wires are not bottomed in contact slots.
• Wire insulation is not nicked or cut in any areas
except in the contact slots.
• Contact beams are not deformed. If damage is
evident, replace the damaged contact according to
the instructions packaged with the connector.
• Wire extends below the connector wire retainers.
Surface of Head
Frame (Connector
Must Start Here)
NOTE
Figure 5
4. Actuate the handle assembly according to the
instructions packaged with the handle assembly.
CAUTION After the ram completes the stroke, no wires should
be left in the wire slots. If any wires are still in the
slots, pull them up and out of the slots before
!
continuing.
5. Depress the push rod to move the terminated
connector beyond the locating pawl in the ram.
Rev C
For detailed inspection information, refer to
Application Specification 114-1019.
i
5. INSERTION DEPTH ADJUSTMENT
The terminating head is preset for nominal wire
insertion depth; however, it may be necessary to make
adjustments to the head, due to the wide range of
cable sizes used, as follows:
1. Remove the head from the handle assembly.
3 of 5
408-4406
6.2. Periodic Inspection
Wire Insertion Depth
Head Removed from
Handle Assembly
Clockwise to
Decrease
Regular inspections should be performed by quality
control personnel. Though recommendations call for
at least one inspection a month, the frequency should
be based on amount of use, working conditions,
operator training and skill, and your established
company policies.
1. Remove all lubrication and accumulated film by
immersing the head in a suitable commercial
degreaser that will not affect paint or plastic.
Insertion
Rod
Adjuster
2. Make certain all components are in place. If
replacements are necessary, refer to Section 7.
Counterclockwise
to Increase
Figure 6
2. If the wires are too deep in the contact slots, turn
the insertion rod adjuster clockwise. A 1/6revolution will decrease the wire insertion depth by
approximately 0.20 mm [.008 in.]. If the wires are
not deep enough in the contact slots, turn the
adjuster counterclockwise. A 1/6-revolution will
increase the wire insertion depth by approximately
0.20 mm [.008 in.]. See Figure 6.
3. Install the head onto the handle assembly; then
terminate and inspect a test connector.
4. Repeat the adjustment as necessary until proper
wire insertion depth is obtained. DO NOT use a
tighter setting than required.
3. Check all bearing surfaces for wear. Replace
worn or damaged parts.
4. Inspect the head for flattened, chipped, or broken
surfaces. Replace worn or damaged parts.
7. REPLACEMENT AND REPAIR
Replacement parts are listed in Figure 7. A complete
inventory can be stocked and controlled to prevent lost
time when replacement of parts is necessary. Order
replacement parts through your TE representative, or
call 1-800-526-5142, or send a facsimile of your
purchase order to 1-717-986-7605, or write to:
CUSTOMER SERVICE (038-035)
TYCO ELECTRONICS CORPORATION
PO BOX 3608
HARRISBURG PA 17105-3608
For customer repair service, call 1-800-526-5136.
6. MAINTENANCE AND INSPECTION
8. REVISION SUMMARY
TE recommends that a maintenance and inspection
program be performed periodically to ensure
dependable and uniform terminations.
Revisions to this instruction sheet include:
• Changed company name and logo
6.1. Daily Maintenance
1. Remove dust, moisture, and other contaminants
with a clean, soft brush or a soft, lint-free cloth. Do
NOT use objects that could damage the head.
2. Make sure that all pins, rings, and other
components are in place and secure.
3. When head is not in use, store it in a clean, dry
area.
Rev C
4 of 5
408-4406
DESCRIPTION
QTY PER
ASSY
ITEM
TE PART NUMBER
1
904092-1
2
23147-3
SPRING, Compression
1
3
312149-1
ADJUSTER, Rod Insertion
1
4
22488-5
SPRING, Compression
1
5
904087-1
RAM
1
6
2-22279-5
SPRING, Compression
1
7
904093-1
ROD, Push
1
8
21003-1
SCREW, Flat Head Cap, 0-80 x .12
1
9
1-23147-2
SPRING, Compression
2
10
904086-1
CLAMP, Wire Guide
2
11
21949-1
PIN, Spiral Wrapped
5
12
904129-1
BLOCK, Wire
2
13
904085-1
GUIDE, Wire
1
14
1-21000-4
SCREW, Socket Head Cap, 4-40 x .38
1
15
21028-2
PIN, Slotted Spring
1
16
904084-1
BLOCK, Inserter
1
17
1-21000-7
SCREW, Socket Head Cap, 4-40 x .75
1
18
904083-1
HEAD
1
PAWL, Locating
1
Figure 7
Rev C
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