Hypertherm Powermax 85

TROUBLESHOOTING AND SYSTEM TESTS
5-6 powermax 65/85 Service Manual
Sequence of operation
Power OFF
• Connect the gas supply to the air fitting on the power supply.
• Connect the work lead to the power supply and workpiece.
• Connect the torch to the power supply.
• Plug in the power supply and make sure incoming power is
ON if using a line-disconnect box.
• Set the ON/OFF switch (S1) to ON (I).
• Set the power switch (S1) to OFF (O).
• The electronic regulator deactivates.
• The gas flow stops.
• The arc extinguishes.
• Gas continues to flow for 20seconds.
• Drag the torch lightly across the
workpiece to make a cut.
• The workpiece drops after the cut.
• Release the plasma start trigger on the
hand torch or the remote start switch for
the machine torch.
• The electronic regulator activates.
• The gas flow starts.
• The cutting arc starts.
• Position the torch over the workpiece.
• Pull the plasma start trigger on the hand
torch or press the remote start switch for
the machine torch.
• The green power ON LED illuminates, indicating the system is
ready for operation.
• The fault LED should be off (see Troubleshooting guide and
Fault codes in this section for more information).
• Set the amperage adjustment knob to the desired output
current based on the thickness of the metal to be cut.
Note: The gas pressure automatically adjusts for optimal
cutting based on the selected settings.
• Set the mode switch to the desired mode for cutting or
gouging.