Instruction Sheet
Terminating Head 58247-1
For MTA-156 Receptacle Connectors
Using Discrete Wire
408-6930
19 APR 11 Rev F
Locating
Pawl
Wire
Inserter
Mass Termination Assembly (MTA) -156
Insulation Displacement Contact (IDC)
Closed -End Receptacle Connectors
Feed
Slide
Tool
Base
With Lock Without Lock With Lock,
Without Lock,
(Ramp)
(Ramp)
With Polarizing With Polarizing
Tabs Tabs
Adjuster
(Insertion Rod)
Figure 1
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.
1. INTRODUCTION
Terminating Head 58247--1 (shown in Figure 1) is
designed to terminate discrete wire in MTA--156 IDC
closed--end receptacle connectors with or without lock
(ramp) and with or without polarizing tabs. Slotted
contacts for insulation displacement termination are
pre--assembled on 3.96--mm [.156--in.] centerlines in
each color--coded housing for a specific wire size.
Adjuster (Insertion Rod) — is a piston for the wire
inserter and regulates wire inserter travel.
Feed Slide — automatically positions the connector
after each termination.
Locating Pawl (or Anti--Backup Pawl) — aligns the
connector for insertion, and retains it during
termination.
The head must be installed in Pistol Grip Manual
Handle Assembly 58074--1 or Pistol Grip Pneumatic
Handle Assembly 58075--1. For head installation and
removal, refer to Instruction Sheet 408--6790 for the
manual handle assembly and 408--6789 for the
pneumatic handle assembly.
3. SETUP AND TEST INSPECTION
The adjuster (insertion rod) is preset for wire sizes
26 through 18 AWG. If the wire is being inserted too
deeply or not deeply enough inside the contact, it may
be necessary to adjust the depth of the wire inserter
or, in addition, if the pneumatic handle assembly is
being used, it may be necessary to adjust the air
pressure. Proceed as follows:
For detailed connector description and application
requirements, refer to Application Specification
114--1020.
Read these and all referenced instructions thoroughly
before using the head.
3.1. Setup
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.
NOTE
1. Determine the wire size, and select the
appropriate color--coded connector from Figure 2.
i
WIRE SIZE (AWG)
CONNECTOR COLOR CODE
Reasons for reissue of this instruction sheet are
provided in Section 8, REVISION SUMMARY.
26
24
22
20
18
Blue
Natural
Red
2. DESCRIPTION
Yellow
Orange
The head serves as a guide and support for the
connector during termination. Features of the head
(shown in Figure 1) and their function are as follows.
Figure 2
E2011 Tyco Electronics Corporation, a TE Connectivity Ltd. Company
All Rights Reserved
*Trademark
TOOLING ASSISTANCE CENTER 1--800--722--1111 This controlled document is subject to change.
1 of 5
PRODUCT INFORMATION 1--800--522--6752
For latest revision and Regional Customer Service,
visit our website at www.te.com
LOC B
TE Connectivity, TE connectivity (logo), and TE (logo) are trademarks. Other logos, product and/or Company names may be trademarks of their respective owners.