Instruction Sheet
Feed- Through Head Assembly 58443- 1
For Discrete Wire MTA- 156 Receptacles
Locating
Pawl
Insert
Housing
Wire Subassembly
Retainer
Rod Inserter
Adjuster
20 DEC 10 Rev C
408-- 9607
Feed
Slide
Wire Inserter
(Hidden)
Figure 1
1. INTRODUCTION
Feed--Through Head Assembly 58443--1 is used to
terminate discrete wires onto MTA--156 Receptacles
640599--[ ] (for wire size 18 AWG) and Receptacles
640604--[ ] (for wire size 26 AWG) with a maximum
insulation diameter of 2.41 mm [.095 in.]. Read these
instructions thoroughly before using the head.
The head must be mounted onto one of the following
tools (for operating procedure for the tool, refer to the
instructions packaged with the tool):
— Pistol Grip Manual Handle Assembly 58074--1
(408--6790)
— Electric Power Unit 931800--1 (409--5746)
— Pistol Grip Pneumatic Handle Assembly
58075--1 (408--6789)
— Pneumatic Power Bench Assembly 58338--1
(408--9393)
NOTE
All numerical values in this instruction sheet are
in metric units [with U.S. customary units in
brackets]. Dimensions are in millimeters [and
inches]. Figures are not drawn to scale.
Features of the head assembly (shown in Figure 1)
and functions are as follows:
Wire inserter—forces the wire into the two slotted
beams of the contact. Note that it provides support for
the contact beams when applying insertion force on
the wire.
Rod inserter adjuster—is a piston for the wire inserter
and regulates wire inserter travel.
Feed slide—automatically positions the receptacle
after each termination.
Locating pawl—aligns the receptacle for insertion,
and retains it during termination. The locating pawl is
sometimes referred to as the “anti--backup pawl.”
Insert housing—holds the receptacle in place in
relation to the wires.
Wire subassembly retainer—holds the wires in place
in relation to the receptacle.
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3. TEST CRIMP AND HEAD ADJUSTMENTS
3.1. Test Crimp
1. Make a termination according to Section 4,
Steps 1 through 6. If the receptacle cannot be
inserted into the head, or if the receptacle is too
loose in the head, adjust the insert housing
according to Paragraph 3.2.
This controlled document is subject to change.
For latest revision and Regional Customer Service,
visit our website at
www.tycoelectronics.com
Reasons for reissue of this instruction sheet are
provided in Section 8, REVISION SUMMARY.
2. DESCRIPTION
The head serves as a guide and support for the
receptacle during termination.
TOOLING ASSISTANCE CENTER 1-- 800-- 722-- 1111
E2010
Tyco Electronics Corporation, Berwyn, PA
PRODUCT INFORMATION 1-- 800-- 522-- 6752
All Rights Reserved
TE logo and Tyco Electronics are trademarks.
*Trademark. Other products names, logos, or company names might be trademarks of their respective owners.
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LOC B
ORIGINAL INSTRUCTIONS
Feed- Through Head Assembly 58443- 1
2. After making the test crimp, depress the locating
pawl and push the receptacle out of the RIGHT
side of the head.
3. Inspect the termination according to Section 5.
If necessary, make the following adjustment:
— For the manual handle assembly or electric
power unit, if the wire is inserted too deep or not
deep enough in the contact slot, adjust the wire
insertion depth according to Paragraph 3.3. Then,
repeat the termination procedure and inspection.
— For the pistol grip pneumatic handle assembly
or pneumatic power bench assembly, if the wire is
inserted too deep in the contact slot, adjust the
wire insertion depth according to Paragraph 3.3.
If the wire is not inserted deep enough in the
contact slot, increase the air pressure by 69 kPa
[10 psi], and repeat the termination and inspection
procedure until either the proper insertion depth is
obtained or the air pressure is set to 483 kPa
[70 psi]. If the proper insertion depth is not reached
at 483 kPa [70 psi], return the air pressure to
276 kPa [40 psi], and adjust the wire insertion
depth according to Paragraph 3.3. Then, repeat
the termination procedure and inspection.
408- 9607
3.3. Wire Insertion Depth Adjustment
1. Remove the head from the tool.
2. If the wire is inserted too deep, turn the rod
inserter adjuster
clockwise
one--sixth of a
revolution (the wire insertion depth will be
decreased by approximately 0.20 mm [.008 in.]).
If the wire is not inserted deep enough, turn the rod
inserter adjuster
counterclockwise
one--sixth of a
revolution (the wire insertion depth will be
increased by approximately 0.20 mm [.008 in.]).
Refer to Figure 4.
4. TERMINATION PROCEDURE
1. Determine the wire size and select the
appropriate receptacle (receptacles are
color--coded according to wire size).
2. Install the head onto the tool according to the
instructions packaged with the tool.
3. Refer to Figure 2, and:
— for the electric power unit, insert the receptacle
into the LEFT side of head (in the direction of the
arrow) until the first contact aligns with the wire
inserter.
— for the manual handle assembly, pistol grip
pneumatic handle assembly, and pneumatic power
bench assembly, depress and hold the trigger or
foot pedal (the wire inserter should extend), and
insert the receptacle into the LEFT side of head (in
3.2. Insert Housing Adjustment
If the receptacle cannot be inserted into the head, or
if the receptacle is too loose in the head, loosen the
two screws on the insert housing, and adjust the
insert housing until the receptacle fits properly in the
head.
Discrete Wires
Wire Inserter
(Hidden)
Funnel
Area
Left Side of Head
Locating
Pawl
Index Ribs of
Receptacle
Wire Sub-- Assembly
Retainer
Retainer
Latch
Pistol Grip Manual
Handle Assembly
(Ref)
Feed Slide
Figure 2
Receptacle
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Tyco Electronics Corporation
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Feed- Through Head Assembly 58443- 1
the direction of the arrow) until it stops, then
release the trigger or foot pedal (the receptacle
should advance so that the first contact aligns with
the wire inserter).
4. Check that the locating pawl is resting between
the index ribs of the receptacle. See Figure 2. If
not, push the receptacle out of the RIGHT side of
the head, and re--insert it.
NOTE
After making the test crimp, the wire
sub--assembly retainer can be used (as shown in
Figure 2) to hold and locate the wires during
terminations. Pivot the retainer latch to open the
retainer.
Inspection of Properly Terminated Wire
Contact
Slot
Front of
Contact Beam
Correct
408- 9607
Wire
Lead-- In
Transition
i
5. Insert an
unstripped
wire into the funnel area
between the contact and the wire inserter until it is
in the desired location to be terminated.
6. Actuate the tool according to the instructions
included with the tool. When the cycle is
completed, the wire inserter will retract, and the
feed slide will automatically advance the receptacle
to the next contact position.
NOTE
The locating pawl will move up and down as the
receptacle is automatically advanced through the
head. However, if movement is obstructed, or if
desired, depress the locating pawl and push the
receptacle out of the RIGHT side of the head.
Strain Relief
Incorrect
Deformation
Figure 3
i
Cut in Wire
7. Repeat Steps 4 through 6 until all contacts have
been terminated.
8. Inspect each termination according to Section 5.
Wire Insertion Depth Adjustment
5. TERMINATION INSPECTION
Refer to Figure 3, and inspect each termination to
ensure the following:
— the wire is terminated past the lead--in transition
and is about halfway in the contact slot
— the wire is from 2.29 to 2.74 mm [.090 to
.108 in.] beyond the front of the contact beam
— the wire is NOT bottomed in the contact slot
— the contact beams are NOT deformed (if
damage is apparent, replace the contacts in
accordance with the instructions packaged with the
receptacle)
— the wire is NOT nicked or cut in any area other
than the contact slot
— the wires extend beyond the strain--reliefs of the
receptacle
NOTE
Refer to 114--1020 for detailed application
requirements.
Turn Clockwise to Decrease
Wire Insertion Depth
Rod Inserter
Adjuster
Turn Counterclockwise to Increase
Wire Insertion Depth
Figure 4
6. MAINTENANCE AND INSPECTION
The following procedures have been established to
ensure the quality and reliability of the head. The
head should be checked daily, and a more detailed
inspection should be performed by your quality control
group on a regular basis.
i
Rev
C
6.1. Daily Maintenance
Each operator should be aware of, and responsible
for, the following steps of maintenance.
Tyco Electronics Corporation
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Feed- Through Head Assembly 58443- 1
1. Remove dust, moisture, and other contaminants
with a clean brush, or soft, lint--free cloth. DO NOT
use objects that could damage the head.
2. Make sure all components are in place and
properly secured.
3. Actuate the tool to ensure mechanisms inside
the head move smoothly.
408- 9607
1. Remove any accumulated film with a suitable
cleaning agent that will NOT affect plastic material.
2. Make sure all components are in place and are
properly secured.
3. Make a few test terminations, and inspect the
termination in accordance with Section 5.
4. Check for chipped, cracked, worn, or broken
areas. If damage is evident, repair is necessary.
See Section 7.
6.2. Quality Control Maintenance
Regular inspections should be performed by your
quality control personnel. A record of quality control
inspections should remain with the personnel
responsible for the head. One inspection a month is
recommended; however, operator skill, amount of
use, ambient working conditions, and your company’s
established standards are all factors in establishing
frequency of inspections.
7. REPLACEMENT AND REPAIR
Customer--replaceable parts are listed in Figure 5.
A complete inventory should be stocked and
controlled to prevent lost time when replacement of
parts is necessary. Parts other than those listed
should be replaced by TE to ensure quality and
reliability. Order replacement parts
17
16
14
13
12
A
A
15
18
Section A--A
2
1
3
4
5
6
7
8
9
10
11
Figure 5 (Cont’d)
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Feed- Through Head Assembly 58443- 1
REPLACEMENT PARTS
ITEM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
PART NUMBER
314487--2
6--22278--5
312147--1
21041--7
312192--1
1--23147--2
312151--1
314491--1
312154--1
3--21028--2
312148--1
312149--1
22488--5
314489--1
4--22430--8
845053--2
854179--1
314500--1
HEAD, Finished
SPRING, Compression
PAWL, Locating
PIN, Spiral Spring
PAWL, Finished Feed
SPRING, Compression
SLIDE, Feed
CAM, Traverse Slide
INSERTER, Wire
PIN, Slotted Spring
ROD, Inserter
ADJUSTER, Rod Inserter
SPRING, Compression
HOUSING, Insert
SCREW, Machine 4--40¢.88 in.
GUIDE, Terminal
HOUSING, Insert
WIRE RETAINER, Subassembly
Figure 5 (End)
DESCRIPTION
408- 9607
QTY PER HEAD
ASSEMBLY
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
through your representative, or call 1--800--526--5142,
or send a facsimile of your purchase order to
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.
8. REVISION SUMMARY
Revisions to this instruction sheet include:
S
Updated instruction sheet to corporate
requirements
S
Added Original Instructions to page 1
Rev
C
Tyco Electronics Corporation
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