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Instruction Sheet

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

LOC B

408-6795

MTA Terminating Head 58082-1

01 SEP 11 Rev A

Figure 1

1. INTRODUCTION

This instruction sheet covers the operation and

maintenance of TE Connectivity MTA Terminating

Head 58082-1 for use in Pistol Grip Manual Handle

Assembly 58074-1, or Pistol Grip Pneumatic Handle

Assembly 58075-1. Read these instructions

thoroughly before using the heads. Refer to the

instructions packaged with the pistol grip handle

assembly for head installation and removal.

Dimensions in this instruction sheet are in

millimeters [with inches in brackets]. Figures and

illustrations are for reference only and are not

drawn to scale.

Reason for revision is given in Section 8, REVISION

SUMMARY.

2. DESCRIPTION

This head is designed to terminate wires in MTA

(Mass Termination Assembly) posted connectors with

contacts on 3.96 mm [.156] centers (MTA-156). See

table in Figure 1.

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.

After the head is inserted into the pistol grip handle

assembly, it serves as a guide and support for the

connector during termination. Features of the head

(see Figure 1) and their functions are as follows:

Wire Inserter - forces 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.)

Adjuster - is a piston for - and regulates travel of - the

wire inserter.

Feed Slide - automatically positions the connector

after each termination.

Index Pawl - aligns connector for insertion, and retains

it during termination

3. SETUP ADJUSTMENTS AND TEST

The adjuster (insertion rod) of the wire inserter is

present for wire sizes 18 through 26 AWG. If the wire

is being inserted too deep or not deep enough inside

the contact, it may be necessary to adjust the depth of

the wire inserter; or, if the pneumatic handle assembly

is being used, it may be necessary to adjust either the

air pressure or the depth of the wire inserter.

3.1. For Pistol Grip Manual Handle Assembly

1. Determine the wire size, and select the

appropriate connector. (Connectors are color-coded

according to the wire sizes they accommodate.)

2. Using a small knife, cut off the wire retainers

(strain relief). This will provide a clear view for

inspecting the connector for a properly terminated

wire in the contact. See Figure 2.

Wire retainers are removed to provide a connector

for testing only. Do NOT use such connectors for

production applications.

3. Place connector in tool and make a test

termination using procedure described in Section 4,

TERMINATING PROCEDURE, Steps 1 through 6.

4. Push connector out of right side of head.

5. Inspect termination in accordance with Section 5,

INSPECTION, Steps 1 through 6.

If you determine that the wire insertion depth is

incorrect, proceed to Paragraph 3.3, Wire Insertion

Depth Adjustment.

WIRE SIZE

(AWG)

POSTED CONNECTORS (MTA-156)

COLOR

CODE

CLOSED

END

FEED

THROUGH

18

Orange

641435

641522

20

Yellow

641436

641523

22

Red

641437

641524

24

Natural

641438

641525

26

Blue

641439

641526

Index Pawl

Feed Slide

Wire Inserter

Adjuster

Head

NOTE

i

CAUTION

!