TROUBLESHOOTING
The most frequent problems are given below. If the problem is different, please consult the
PRAXAIR SOLDADURA S.L.
technical service. Always use original spares from the machine manufacturer,
PRAXAIR SOLDADURA S.L.
If different
components are used, these could damage the machine or adversely affect its performance.
FAULT
LIKELY CAUSE
SOLUTION
Low open circuit voltage
Ø
Blown line fuses.
Ø
Blown primary fuse
>
Measure the 3 line phases
>
Change fuses
The ventilator does not
work
Ø
Faulty motor
Ø
Cut or loose ventilator power cables
Ø
2 or 4 A fuses blown
>
measure the voltage of the motor
cables. If it is 230 V the motor is
faulty.
>
Change fuses.
Poor welding current
Ø
Loss in the cables
Ø
Faulty wire feed
>
Tighten connections
>
Lessen the wire feed roller pressure.
>
Clean the torch tip
>
Clean the rollers or change them if
faulty.
Gas holes in weld
Ø
Insufficient shielding gas flow
Ø
Welded part is rusty or dirty.
Ø
Moisture present in gas
>
Reduce the feed speed.
>
Increase the arc voltage.
Lack of penetration
Ø
Irregular position of torch
Ø
Very low voltage
Ø
Too large a margin
Ø
Irregular wire feed
Ø
Excessive projection
>
Increase the arc voltage
Spatter
Ø
very high voltage
Ø
dirt or spatter on tip
Ø
insufficient inductance
Ø
too much angle on torch
>
Reduce the arc voltage
>
Clean or change the tip
>
Change the earth connection to
max. ind.
Summary of Contents for SELECT-400
Page 7: ...PARTES DE REPUESTOS SELECT 400 600 ...
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Page 10: ......
Page 11: ...MANUAL DE INSTRUÇÕES SELECT 400 600 EQUIPAMENTO DE SOLDADURA MIG MAG ...
Page 18: ......
Page 19: ...PEÇAS DE SUBSTITUIÇÃO SELECT 400 600 ...
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Page 24: ......
Page 25: ...OPERATING INSTRUCTIONS SELECT 400 600 MIG MAG WELDING MACHINE ...
Page 31: ......
Page 32: ...SPARE PARTS SELECT 400 600 ...
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Page 37: ...MODE D EMPLOI SELECT 400 600 INSTALLATION DE SOUDAGE MIG MAG ...
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Page 45: ...PIECES DE RECHANGE SELECT 400 600 ...
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Page 50: ...BEDIENUNGS ANLEITUG SELECT 400 600 MIG MAG SCHWEIBANLAGE ...
Page 57: ...ERSATZTEILE SELECT 400 600 ...
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