Hypertherm Powermax125 Service Manua - Manual (Page 66)

66 Powermax125 Service Manual 808070
5 – Hand Cutting
Common hand-cutting faults
The torch does not cut completely through the workpiece. The causes can be:
 The cut speed is too fast.
 The consumables are worn.
 The metal being cut is too thick for the selected amperage.
 Gouging consumables are installed instead of drag-cutting consumables.
 The ground clamp is not attached properly to the workpiece.
 The gas pressure or gas flow rate is too low.
 Gouging mode is selected on the power supply.
Cut quality is poor. The causes can be:
 The metal being cut is too thick for the amperage.
 The wrong consumables are being used (gouging consumables are installed instead of drag-cutting consumables,
for example).
 The torch is moving too quickly or too slowly.
The arc sputters and consumable life is shorter than expected. The causes can be:
 Moisture in the gas supply.
 Incorrect gas pressure.
 Consumables incorrectly installed.
 The consumables are worn.