Tweco 7-3442 User Manual
Manual 0-2768
RPT Adapter Kit
Catalog # 7-3442
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:
SMITH SPC-30, 20-50 and 40-80
Parts Supplied
The following parts are included in this kit:
• Control Connector Plug with Connectors (1 ea)
• Adapter Fitting (1 ea)
• Pilot Adapter Fitting (1 ea)
Installation
Install the Adapter Kit per the following procedure:
1. Turn OFF the power supply.
2. Disconnect the main input power to the power supply.
3. Remove the existing torch from the power supply, removing
covers as required.
4. Place the Adapter Fitting provided into the Power Supply
torch power cable fitting (-) and tighten securely.
5. Connect the pilot wire (+) from the replacement torch to the
Power Supply Pilot Adapter Fitting with the screw provided
and tighten securely
6. Plug the Pilot Adapter Fitting into the Po wer Supply Pilot
Connection.
7. Connect the Negative/Plasma Lead from the replacement
torch to the Adapter Fitting. Slide the protective boot over
the lead connection.
8. Connect the Control Connector Plug (see NOTE), with two
connectors, to the two mating connectors on the replacement
torch leads.
For Mechanized Systems refer to the
Torch Control Cable Wiring Diagram
on the last page of this Manual.
Control Connector
Plug with Connectors
Torch Control
Connectors
Negative/Plasma Lead
Torch Lead Assembly
NOTE
To Power Supply
Pilot Connector
Pilot Adapter Fitting
Pilot Lead
To Power Supply
Control Connector
To Power Supply
(-) Fitting
Adapter Fitting
A-02494
9. Connect the Control Connector Plug to the Power Supply.
10. Reinstall any covers removed (see WARNING).
11. Install the proper torch consumables for the Power Supply amperage.
12. Reconnect main input power to the Power Supply and turn the unit ON.
13. Set air pressure to 60 - 70 psi (4.1 - 4.8 bar).
14. Test torch for proper operation.
© 1998 Thermal Dynamics Corp., Printed in USA
WARNING
Make sure that the Control Connector Plug
wires DO NOT contact the Adapter Fitting after
all leads are connected.
Installation Instructions 5/21/99
Torch Control Cable Wiring Diagram For Mechanized Systems
T o Torch
Control Device
Control Connector
Plug with Connectors
Torch Control
Torch Control
Cable
Connectors
To Power Supply
Control Connector
A-02497
Torch Lead Assembly
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.
© 1998 Thermal Dynamics Corp., Printed in USA
Installation Instructions 5/21/99
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