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FULL VOLTAGE CALIBRATION USING A WELDING ARC
Service and repair should be performed by only Lincoln Electric factory trained personnel.
Unauthorized repairs performed on this equipment may result in danger to the technician or
machine operator and will invalidate your factory warranty. For your safety and to avoid elec-
trical shock, please observe all safety notes and precautions detailed throughout this manual.
If for any reason you do not understand the test procedures or are unable to perform the
test/repairs safely, contact the Lincoln Electric Service Department for electrical trou-
bleshooting assistance before you proceed. Call 1-800-833-9353 (WELD).
PROCEDURE DESCRIPTION
This procedure is necessary if the display board is replaced and the Quick Voltage Calibration
or the Normal Full Voltage Calibration is NOT possible.
MATERIALS NEEDED
A Test and Calibration overlay L9660-255 (the test procedure can be done within this)
A Synergic 7 wire feeder.
A calibrated DC voltmeter accurate to 0.1 volts at 30.0 volts.
The proper welding wire and gas combination to produce a Spray Arc. For example,
0.035 L-50 wire with a 90% Argon and 10% CO
2
blend of gas.
SETUP PROCEDURE
1. Connect a DC voltmeter to the machine’s negative output terminal and the conductor
block of the wire feeder.
2. Connect the Synergic 7 wire feeder to the Wire Feeder 1 amphenol on the back of the
Power Wave.
WARNING
TROUBLESHOOTING & REPAIR
F-147 F-147
POWER WAVE 450
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This procedure takes approximately 45 minutes to perform.