Tweco 7-5227 - Manual (Page 3)

July 28, 2004 3 Manual 0-4647
Connecting Torch
The Torch Leads connect to the power supply with an Adapter
Kit consisting of two control wire connectors supplied with the
torch. Connect the torch to the power supply as follows:
WARNINGS
Disconnect primary power to the system before
disassembling the torch or torch leads.
DO NOT touch any internal torch parts while the
AC indicator light of the Power Supply is ON.
1. Pass the end of the Torch Leads Assembly through the
access opening on the power supply.
2. Connect the ring tongue terminal on the Torch Leads
Assembly pilot lead to the pilot terminal on the power
supply. Tighten securely.
Pilot
Lead
Negative/Plasma
Lead
Pilot Lead
Stud
Negative/Plasma
Lead Connection
Art # A-03959
Control Circuit
Connectors
Control
Wire
Connectors
Torch Lead Assembly
To
Po
wer Supply
(-) Fitting
To
Po
wer Supply
Control Connectors
3. Connect the Negative / Plasma lead from the torch to the
power supply. Tighten securely. Do not use sealant.
4. The torch leads assembly includes two wires joined to-
gether and covered with an insulating sleeve. These wires
must remain joined and sleeved for proper torch operation.
5. Refer to the illustration. Connect the Control Wire Connec-
tors to the torch leads assembly wires as shown.
6. Connect the Control Wire Connectors to the power supply.
7. Reinstall any power supply covers removed for torch in-
stallation.
Torch Parts Selection
Refer to the Consumables Selection Chart for the various torch
parts for the application and operation.
WARNINGS
Disconnect primary power to the system before dis-
assembling the torch or torch leads.
DO NOT touch any internal torch parts while the
AC indicator light of the Power Supply is ON.
The shield cup holds the tip and starter cartridge in place.
Position the torch with the shield cup facing upward to
keep these parts from falling out when the cup is removed.
Change the torch parts as follows:
1. Unscrew and remove the shield cup from the torch
head.
A-03645
Electrode
Starter Cartridge
Tip
Shield Cup
Torch Head
2. Tilt the torch head to remove the tip and starter car-
tridge.
3. Fit the desired starter cartridge and tip onto the electrode.