Maintenance
HPR800XD Auto Gas – 806500 5-3
Introduction
Hypertherm assumes that the service personnel performing the troubleshooting testing are high-level
electronic service technicians who have worked with high-voltage electromechanical systems. Knowledge
of final isolation troubleshooting techniques is also assumed.
In addition to being technically qualified, maintenance personnel must perform all testing with safety
inmind. Refer to the Safety section for operating precautions and warning formats.
WARNING
SHOCK HAZARD
Use extreme care when working near the chopper modules. Each large electrolytic capacitor
(blue-cased cylinder) stores large amounts of energy in the form of electric voltage. Even if the
power is off, dangerous voltages exist at the capacitor terminals, on the chopper, and the diode
heatsinks. Never discharge any capacitor with a screwdriver or other implement… explosion,
property damage and/or personal injury will result.
Routine maintenance
See Preventive Maintenance, located at the end of this section, for maintenance information. Contact the Technical
Services department listed at the front of this manual with any questions regarding maintenance procedures.
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