112
Powermax125
Service Manual 808070
8 – Troubleshooting and System Tests
Sequence of operation
Power OFF (
O
)
• Connect the gas supply to the gas 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
).
• The green power ON LED illuminates,
indicating the system is ready for
operation.
• The fault LED should be off (see
on page 143 and
• Set the mode switch to the desired mode
for cutting or gouging.
• Set the amperage adjustment knob to the
desired output current based on the
thickness of the metal to be cut.
• The gas pressure automatically adjusts for
optimal cutting based on the selected
settings.
• 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 electronic regulator activates.
• The gas flow starts.
• The cutting arc starts.
• 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 arc extinguishes.
• Gas continues to flow for 30 seconds.
• The electronic regulator deactivates.
• The gas flow stops.
• Set the power switch (S1) to OFF (
O
).
