Hypertherm HT4400 HySpeed Plasma Arc Cutting System - Manual (Page 132)

5-42 HT4400 Instruction Manual
7
Preventive Maintenance Master Schedule
Daily:
• Verify proper inlet gas pressure.
• Verify proper gas flow settings. – Mandatory at every consumable change.
• Verify proper coolant pressures and temperatures. – Water chillers only.
• Inspect torch and replace consumables as needed.
Weekly:
Week Jan Feb March April May June July Aug Sept Oct Nov Dec
1
2
3
4
5
Monthly:
Jan Feb March April May June July Aug Sept Oct Nov Dec
Bi-Annually:
Year 1st Service 2nd Service
• Clean power supply with dry, oil free compressed air or vacuum.
• Verify cooling fans are working properly.
• Clean torch threads and current ring.
• Verify proper coolant level.
• Complete systems check per the preventive maintenance protocol.
Annually:
Year
• Complete systems check per the preventive maintenance protocol.
• Complete systems check per the preventive maintenance protocol.