Diagnostics and Troubleshooting
XPR300 Instruction Manual 809480 317
Low shield water pressure code (532)
1. Make sure that the shield water pressure supplied to the cutting system is between 2.76 bar –
7.93 bar (40 psi – 115 psi).
If the pressure is less than 2.76 bar (40 psi), then a “booster” water pump
can be necessary to avoid system shut down or bad cut quality. Refer to
Shield water requirements (VWI and OptiMix) on page 51.
2. Examine all water hoses and water hose inlet fittings. Look for:
Damage or kinks that can restrict flow.
Leaks that can decrease pressure.
3. Replace any hoses with damage or kinks.
4. Reposition the hoses if you find fixable kinks.
5. Replace any fitting that has damage.
6. Tighten loose connections if found.
7. Examine water regulators. Look for debris that can block the flow path.
8. Adjust the inlet water pressures to at least 2.77 bar (40 psi) when cutting, if necessary.
The Hypertherm-supplied regulator that is connected to the gas connect
console is pre-set at the factory. Do not adjust this regulator.
9. If you cannot find or fix the problem with these corrective actions, contact your cutting machine
supplier or regional Hypertherm Technical Service team.
WARNING
ELECTRIC SHOCK CAN KILL
Disconnect electrical power before doing troubleshooting or diagnostic work.
All work requiring removal of the plasma power supply outer cover or panels
must be done by a qualified technician.
See the Safety and Compliance Manual (80669C) for more safety
information.
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