4-16 MAX200 Instruction Manual
OPERATION
Common Cutting Faults
• The workpiece is not totally penetrated. Causes can be:
– The current is too low.
– The cut speed is too high.
– The torch parts are worn.
– The metal being cut is too thick.
• Dross forms on the bottom of the cut. Causes can be:
– The cutting speed is too slow or too fast.
– The torch parts are worn.
Duty Cycle
The duty cycle is reduced if:
• The input line voltage is less than nominal, due to a long power cord, poor utility supply, etc.
• You are cutting material greater than one-inch thick.
• The work clamp is not making a good electrical contact to the workpiece due to paint, rust, etc.
• Arc voltage is greater than 150 volts (at 200 amps).
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