Hypertherm HD3070 Plasma Arc Cutting System w/ Automatic Gas Console - Manual (Page 127)

5-2 HD3070 with Automatic Gas Console Instruction Manual
16
MAINTENANCE
Introduction
It is assumed that the service personnel performing the troubleshooting testing are high-level electronic
service technicians that 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.
If you need additional assistance or need to order parts, call Hypertherm Customer Service at 1-800-643-0030 or
Hypertherm Technical Service at 1-800-643-9878.
WARNING
SHOCK HAZARD: The large electrolytic capacitor(s) (blue-cased cylinder(s)) store 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 the capacitor(s) with a screwdriver or
other implement…explosion, property damage and/or personal injury will result. Wait at least five minutes
after turning the power supply off before touching the chopper or the capacitor(s).