Tweco 7-3476 - Manuel (Page 2)

August 6, 2003 / 6 Août, 2003 2 Manual / Manuel 0-2958
Installation Procedure
A. Preparation
1. Remove the Power Supply Cover per the Power Supply Manual.
2. Label and disconnect all original torch connections. Remove the original torch from the Power Supply.
3. Remove the Strain Relief securing nut from the Strain Relief provided in this kit.
4. Slide the Strain Relief onto the Torch Leads or ATC Adapter Kit. If necessary for strain relief installation,
remove the insulation sleeve covering two joined wires on the Torch Leads or Adapter. Disconnect the joined
wires.
B. Adapter Installation - For 'Type A' Applications
1. Pass the end of the leads or ATC Adapter through the torch leads opening in the Power Supply.
2. Inside the Power Supply, slide the Strain Relief securing nut onto the Leads or Adapter. Tighten the securing
nut onto the Strain Relief to secure the strain relief to the Power Supply.
3. Refer to the illustration. Slide the insulating sleeve provided in this kit onto the Torch Leads or ATC Adapter
Kit Negative / Plasma fitting (only). Do not enclose the wires.
4. Connect the negative / plasma fitting from this adapter kit to the ATC Adapter or Leads plasma fitting. Do
not use sealant. Tighten securely.
Negative/Plasma
Lead
Large Insulating Sleeve (Installed)
Ring
Terminal
RPT Adapter Kit
ATC Adapter Kit
Torch Leads
Assembly
A-03488
Strain Relief
Securing Nut
Strain Relief
Assembly
To Power Supply
Gas Input Connector
Strain Relief
Dome Nut
Negative/Plasma Fitting
RPT Adapter
Plasma Gas Line
Plasma
Connector
To Power Supply
Negative Connection
To Power Supply
Pilot Connection
To Power Supply
Control Circuitry
(All Applications)
To Power Supply Control Circuitry
(4-wire Applications Only)
5. Connect the ring terminal on the negative / plasma fitting wire to the negative connection on the power
supply.
6. Tighten the nut on the negative / plasma fitting securing the large ring terminal.
7. Slide the large insulating sleeve over the Torch Leads or ATC Adapter plasma fittings, and the negative /
plasma fitting. The sleeve must completely cover the fittings on both the Leads or ATC Adapter, and the
negative / plasma fitting.