Tweco 7-3450 User Manual

Manual 0-2834

RPT Adapter Kit

Catalog # 7-3450

Installation Instructions

General Information

This Replacement Torch Adapter Kit is to be used to connect the Thermal Dynamics Plasma RPT Series Cutting Torch to the
following equipment:

Thermal Dynamics EconoPak 100

Parts Supplied

The following parts are included in this kit:

• Control Connector Wires with Connectors (1 ea)

• Pilot Lead Adapter with Insulation Sleeving (1 ea)

Installation

Install the Adapter Kit per the following procedure:

1. Turn OFF the power supply.

Control Connector

Wires with Connectors

Ten-Pin Connector

To Power Supply

Control Connector

2. Disconnect the main input power to the power supply.

3. Remove the existing torch from th e power supply, removing

Torch Control

Connectors

covers as required.

4. Connect the pilot wire (+) from the replacement torch to the
Power Supply per the following procedure:

a. Measure back 2 inches (50.8 mm) on the pilot lead

from the ring terminal and cut the pilot lead off at this
point.

b. Strip the pilot lead wire insulation 9/32 inch.
c. Using the proper wire crimping tool, crimp the Pilot

Negative/Plasma Lead

Torch Lead Assembly

Ring T erminal Removed

Lead Adapter onto the pilot lead at the butt splice.

d. Pull the Pilot Return Insulation Sleeving over the butt (in-line) splice.
e. Connect the end of the Pilot Return Adapter to the pilot terminal on the Power Supply.

5. Connect the Negative/Plasma Lead from the replacement torch to the Adapter
Fitting. Slide the protective boot over the lead connection.

6. Connect the Control Connector Wire (see NOTE) to the two mating connectors on
the replacement torch leads to the two mating connectors on the replacement torch
leads.

For Mechanized Systems refer to the
Torch Control Cable Wiring Diagram
in the Manual supplied with the RPT
Torch.

7. Connect the PCB Header (10-pin connector) of the Control Connector Wires to the Power Supply.

8. Reinstall any covers removed (see WARNING).

9. Install the proper torch consumables for the Power Supply amperage.

To Power Supply

Pilot Connector

Pilot Lead Adapter

Pilot Lead With

NOTE

WARNING

To Power Supply

(-) Fitting

A-02940

10. Reconnect main input power to the Power Supply and turn the unit ON.

Make sure that the Control Connector Wires DO
NOT contact the Negative/Plasma Lead Fitting

11. Set air pressure to 60 - 70 psi (4.1 - 4.8 bar).

after all leads are connected.

12. Test torch for proper operation.

NOTE

Every effort has been made to provide complete and accurate information in this manual. However, the publisher does not
assume and hereby disclaims any liability to any party for any loss or damage caused by errors or omissions in this manual,
whether such errors result from negligence, accident or any other cause.

© 2000 Thermal Dynamics Corp., Printed in USA

Installation Instructions 7/25/00