Tweco 7-3480 - Manual (Page 2)

July 7, 2003 2 Manual 0-2973
3. The torch leads or ATC Adapter includes a pilot
wire with a ring-tongue terminal. Slide back the
insulation sleeve covering this wire. Cut the ter-
minal off the wire. Strip back approximately
11/16 inch (17 mm) of insulation from the end of
the wire. Double the stripped end of the wire back
onto itself. Use a crimping tool to attach the bar-
rel crimp included in this kit to the end of the pi-
lot wire. Check for a secure connection between
the crimp and the wire.
4. The torch leads or ATC Adapter includes two
wires covered with an insulating sleeve and joined
with mating connectors. Remove the tie wrap
securing the insulating sleeve in place. Remove
the insulating sleeve and disconnect the mating
connectors.
5. Remove the nut from the strain relief assembly.
6. Install the strain relief on the Replacement Torch
leads or ATC Adapter. It may be necessary to twist
the strain relief back and forth while sliding it onto
the leads or ATC Adapter.
7. Pass the Torch Leads or ATC Adapter through the
torch leads access opening in the power supply
front panel. Loosely thread the Strain Relief Nut
onto the Strain Relief. Do not tighten.
8. Connect the O2B Adapter Fitting (with wire har-
ness) to the Plasma Fitting on the torch leads or
ATC Adapter. Tighten securely.
9. Ensure that the O-ring is in place on the Adapter
Connector.
10. Press the Adapter Connector into the power sup-
ply solenoid connection. Secure the fitting in place
with the C-clip removed to disconnect the origi-
nal torch. Test for a secure connection between
the fitting and the solenoid.
11. Tighten the Strain Relief Nut onto the Strain Re-
lief securely. Test the torch leads or ATC Adapter
leads assembly to ensure that the strain relief holds
the leads or adapter leads securely.
12. Refer to the illustration. Install the pilot lead wire
(with barrel crimp) in terminal #3 in the terminal
block just above the power supply solenoid.
Tighten the securing screw. Check for a secure
connection.
13. Refer to the illustration. Install the power wire
connector from the torch adapter (4 wires termi-
nated in a barrel crimp) in terminal #5 in the ter-
minal block just above the power supply solenoid.
Tighten the securing screw. Check for a secure
connection.
14. Connect the mating wire connectors on the sepa-
rate 4 - wire harness assembly provided in this
kit to the connectors on the torch leads assembly
or ATC Adapter.
15. Connect the receptacle on the 4 - wire harness as-
sembly to the power supply main circuit board.
Press the connector into place securely.
16. Reinstall the power supply cover per
manufacturer's instructions.
17. Check the torch for proper consumables per the
torch manual.
18. Connect primary input power to the power sup-
ply. Test the power supply for proper operation.
19. Set gas pressure per the torch manual.
20. Test the torch for proper operation.
NOTE
Every effort has been made to provide com-
plete 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 omis-
sions in this Manual, whether such errors re-
sult from negligence, accident, or any other
cause.