7-12 Powermax105 Operator Manual
The consumable life is shortened. Causes can be:
• The gas setting is incorrect.
• The arc current, arc voltage, travel speed, and other variables are not set as recommended in the cut charts.
• Firing the arc in the air (beginning or ending the cut off of the plate surface). Starting at the edge is acceptable
as long as the arc makes contact with the workpiece when started.
• Starting a pierce with an incorrect torch height. Refer to the cut charts for the specific initial pierce height.
• The pierce time is incorrect.
• The air quality is poor (oil or water in the air).
• There might be a faulty pilot arc IGBT which can shorten nozzle life (refer to the troubleshooting sections in this
manual, or call Technical Service).
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