MAINTENANCE/PARTS
5-7
Operator Manual
TECHNICAL QUESTIONS
If you are unable to fix the problem with your Powermax900 by following this basic troubleshooting
guide or if you need further assistance:
1. Call your distributor or an authorized Hypertherm repair facility.
2. Call the nearest Hypertherm office listed in the front of this manual.
3. See the Powermax900 service manual for wiring diagrams, higher-level troubleshooting and
more parts list information.
8. The arc blows out, but re-ignites when the
torch switch is depressed.
9. The arc sputters and hisses.
10. Cut quality is not good.
8.1 There are faulty consumable parts.
Inspect and change the consumable parts, if
necessary. See
Operating Tips
in
Section 4.
8.2 The gas pressure is incorrect.
Adjust the gas pressure. Incoming gas
pressure is 90 psi (6.2 bar) at a flow of 360
scfh (170 l/m). Pressure at unit in TEST
mode is 70 psi (4.8 bar) for lead length of 25
feet (7.6 m) and 75 psi (5 bar) for lead length
of 50 feet (15.2 m). See
Operating
Instructions
in Section 4 to adjust gas
pressure, if necessary.
8.3 The gas filter at the rear of the supply
contains excessive moisture.
Drain the filter bowl and clean the filter. See
Routine Maintenance
earlier in this section.
9.1 The gas filter at the rear of the supply
contains excessive moisture.
Drain filter bowl and clean filter. See
Routine
Maintenance
earlier in this section.
10.1 Power supply voltage links are incorrect.
See voltage configuration settings in
Section 3.
10.2 Consumables are worn.
See
Operating Tips
in Section 4.
Problem
Cause
/ Solution
9-99
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