Hypertherm HSD130 HySpeed Plasma - Manual (Page 148)

MAINTENANCE
5-2 HySpeed HSD130 RHF Instruction Manual
Introduction
Hypertherm assumes that the service personnel that troubleshoots and tests the plasma systems are
high-level electronic service technicians who have worked with high-voltage electro-mechanical systems.
Knowledge of final isolation troubleshooting techniques is also assumed.
In addition to being technically qualified, maintenance personnel must perform all testing with safety in
mind. Refer to the Safety section for operating precautions and warning formats.
Routine maintenance
For a complete list of routine maintenance recommendations, see the Preventative Maintenance Schedule, located at
the end of this section. Contact the Technical Services department listed at the front of this manual with any questions
regarding the maintenance schedule or procedures.
WARNING
Shock Hazard
Use extreme caution when working near the chopper components. The large blue capacitors store high
voltage. Even if the power is off, dangerous voltages exist at the capacitor terminals, on the choppers,
and the heatsinks. Discharging any capacitor with a screwdriver or other implement may result in an
explosion, property damage, or personal injury. Wait at least 5 minutes after turning off the power
supply before touching the chopper or the capacitors.