Troubleshooting Guide
140 809240 Operator Manual Powermax45 XP
Check the gas pressure
Gas supply: Incorrect gas pressure can result in issues with cut quality and cut
performance. Refer to Gas supply source on page 35 for details on the inlet gas supply
requirements for this system. Never exceed the maximum gas pressure of 9.3 bar
(135 psi).
Gas hose: An incoming gas supply hose with too small a diameter can result in issues with
cut quality and cut performance. Only use gas hoses with an internal diameter of 9.5 mm
(3/8 inch) or greater.
Pressure setting: The system regulates gas pressure automatically, but you can adjust the
gas pressure manually if needed. See page 54.
Gas test: You can run a gas test to see if adequate pressure is exiting the torch. The gas
test lets you see the plasma system’s actual gas pressure so that you can compare it to the
inlet set pressure. See page 149.
If you manually adjusted the gas pressure and then started to notice
issues with cut quality or cut performance, reset the gas pressure to the
default setting. Seepage56.
The consumables wear
out more quickly than
they used to.
• Check the gas pressure and the gas supply hose. See page 140.
• Do not start or end cuts off of the surface of the workpiece. Starting at the
edge of the workpiece is acceptable as long as the arc makes contact
with the workpiece when started.
• Inspect the torch lead. Straighten it if it is twisted or kinked. Replace it if it
is damaged.
• Make sure the arc current, arc voltage, travel speed, and other cut settings
are correct. Refer to the cut charts starting on page 121.
• Use the correct torch height for piercing. Refer to the cut charts starting
on page 121 for the initial pierce height.
• Make sure that the pierce delay time is correct. Refer to the cut charts
starting on page 121.
• Inspect the shield, swirl ring, and retaining cap. Replace them if they are
worn or damaged. See page 154.
• Inspect the gas filtration system for signs of contaminants that may be
interfering with system performance. See page 141.
• A faulty pilot arc IGBT may be shortening nozzle life. Contact your
distributor or authorized repair facility.
Problem Solution
ARC WELDING SUPPLIES - 07 847 7870