3-2
powermax190
c
Service Manual
MAINTENANCE
Introduction
Hypertherm assumes that the service personnel performing the troubleshooting testing are high-level
electronic service technicians that 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 in
mind. Refer to the Safety section for operating precautions and warning formats.
Under severe conditions, routine maintenance should be performed more frequently.
Before Each Use
• Check the torch and consumables for wear. See Inspecting and Replacing Consumable Parts in Section 4
of the Powermax190c Operator manual (803650) if necessary.
Every Week
• Check the torch cap-on sensor system by listening for the micro-switch to “click” when the retaining cap is
loosened.
3 Months
• Replace damaged or unreadable labels.
• Replace any cracked parts.
• Check the torch body and torch lead.
• Replace the torch lead if the insulation is broken.
6 Months
• Clean the inside of the power supply with air pressure or vacuum.
WARNING
ELECTRIC SHOCK CAN KILL
Disconnect electrical power before performing any maintenance.
All work requiring removal of the power supply cover must be performed by a
qualified technician.
Routine Maintenance
