powermax
380
Operator Manual
5-7
0
MAINTENANCE AND PARTS
Problem
Cause / Solution
10. The arc blows out, but re-ignites when
the torch switch is depressed again.
10.1 The consumable parts are worn or damaged.
Inspect and change the consumables, as
necessary. See Inspect Consumables, in this section.
See Torch Operation, Section 4.
10.2 The gas pressure is incorrect.
Adjust the operating gas pressure. See Check and
Adjust Gas Pressure, Section 4. Check that the gas
pressure to the power supply is not less than
90 psi (6.2 bar) at a flow of 6 scfm (170 l/m).
10.3 The gas filter element inside the power supply is
contaminated.
Replace filter element. See Air Filter Element
Replacement, in this section.
11. The arc sputters and hisses.
11.1 The gas filter element inside the power supply is
contaminated.
Replace filter element. See Air Filter Element
Replacement, in this section.
11.2 There is water in the air line.
Install or repair air filtration to power supply. See
Additional Gas Filtration, Section 3.
12. Cut quality is not good.
12.1 Consumables are worn or the torch is being used
incorrectly .
See Inspect Consumables, in this section.
See Hand Torch Operation, Section 4.
Technical Questions
If you are unable to fix the problem by following this basic troubleshooting guide or if you need further assistance:
1. Call your Hypertherm distributor or authorized Hypertherm repair facility.
2. Call the nearest Hypertherm office listed in the front of this manual.
3. See the Powermax380 Service Manual for wiring diagrams, higher-level troubleshooting and more parts list
information.
9. The arc does not transfer to the workpiece.
9.1 The work clamp is not connected to the workpiece
or the work cable is damaged.
Connect or repair the work clamp or cable.
9.2 The work clamp is not making good metal-to-metal
contact.
Clean the area where the clamp contacts the work-
piece.
9.3 The torch is too far away from the workpiece.
Move the torch head closer to the workpiece and start
the torch again.
See Torch Operation, Section 4.
Basic Troubleshooting (continued)
