Adjust Cut Flow Gases And Prepare For Cutting; Common Cutting Faults - Hypertherm HySpeed HT2000 Instruction Manual

FM1 FM2
S3 S2

Common Cutting Faults

• Torch pilot arc will initiate, but will not transfer. Cause can be:
1. Work cable connection on cutting table not making good contact.
2. Malfunction in system. See Section 8.
• The workpiece is not totally penetrated, and there is excessive sparking on top of the workpiece. Causes
can be:
1. Current is set too low (check Cut Chart information).
2. Cut speed is too high (check Cut Chart information).
3. Torch parts are worn (see Changing Consumable Parts).
4. Metal being cut is too thick.
• Dross forms on the bottom of the cut. Causes can be:
1. Cutting speed is too slow or too fast (check Cut Chart information).
2. Arc current set too low (check Cut Chart information).
3. Torch parts are worn (see Changing Consumable Parts).
• Cut angle not square. Causes can be:
1. Wrong direction of machine travel.
High quality side is on the right with respect to the forward motion of the torch.
HySpeed HT2000 Instruction Manual

Adjust Cut Flow Gases and Prepare for Cutting

13. Set S2 on the gas console to Test Cut Flow.
14. Look at the oxygen (FM2) and/or nitrogen-air (FM1) flowmeters on the
gas console and set the Cut Flow plasma gas flow rate % by referring to
the Cut Charts and toggling the Cut Flow switch (S3) up or down.
Note: If you have changed consumable parts or if the power
supply has been off for more than one hour, purge gas
lines by leaving system in Test Cut Flow for one minute.
15. Set S2 to Run after the test preflow and test operate flow rates have
been set.
The system is now ready for operation.
OPERATION
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