OPERATION
5-19
HT4001 Instruction Manual
COMMON CUTTING FAULTS
•
Torch pilot arc will initiate, but will not transfer. Causes can be:
1.
Work cable connection on cutting table not making good contact.
2.
Malfunction in HT4001 system. See
Troubleshooting in Maintenance section.
•
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 - See Dross Conditions on page 5-16.
•
Cut angle not square - See How to Get Better Cut Quality on page 5-15.
•
Short consumable life - See How to Get Longer Consumable Life on page 5-17.
TECHNICAL QUESTIONS
Claims for defective merchandise -- All units shipped from Hypertherm undergo rigorous
quality control testing. However, if your system does not function correctly:
1.
Re-check all pre-installation and installation requirements and connections.
2.
If you are unable to solve the problem, call your distributor. He/she will be able to help
you, or refer you to an authorized Hypertherm repair facility.
3.
If you need additional assistance, call Customer Service at 1-800-643-0030 or Technical
Service at 1-800-643-9878.
.
CUT CHARTS
The Cut Charts on the following pages are optimized to provide the best cut angle, least
dross and best cut surface finish. Keep in mind that the charts provide a good starting
point and that optimum cutting must be tuned to the application and materials on site.
Increasing cut speed, lowering the torch standoff, for example, all present certain trade-
offs as mentioned in
How to Get Better Cut Quality. Depending on the cutting
application, it is up to the operator to determine if the trade-offs are acceptable.
Before cutting, check all settings and adjustments and check for damaged torch
parts and worn consumable parts.
Содержание HT4001
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