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Maintenance
Coolant maintenance
If the Computer Numerical Control (CNC) alerts you that the coolant level is low, remove the power from the cutting system and refill the coolant reservoir immediately.
Make an estimate of the total coolant volume
Use these calculations to make an estimate for the total coolant volume for your plasma cutting system.

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Maintenance
- Overview of cutting system maintenance
  Hypertherm® cutting systems can operate in harsh conditions for many years. For satisfactory cutting system performance, decreased operation costs, and longer cutting system life, it is important to do all maintenance procedures on schedule.
- References for cutting system maintenance
- Remove the power from the cutting system
  It is necessary to remove the power from the cutting system for many procedures.
- Cleaning and inspection schedule for preventive maintenance
  The cleaning and inspection schedule for plasma cutting systems shows the intervals of preventive maintenance tasks.
- Tasks for one-day intervals
- Coolant maintenance
  If the Computer Numerical Control (CNC) alerts you that the coolant level is low, remove the power from the cutting system and refill the coolant reservoir immediately.
  - Coolant replacement and its significance
    Hypertherm® recommends that you replace all of the coolant at least once every six months, as part of routine preventive maintenance. More frequent replacement can be necessary because of environmental conditions, contaminants in your coolant, or diagnostic codes for coolant problems.
  - Make an estimate of the total coolant volume
    Use these calculations to make an estimate for the total coolant volume for your plasma cutting system.
  - Remove old coolant from the plasma cutting system
    Empty the reservoir, heat exchanger, hoses, and filter housing. Use compressed air to remove remaining coolant. Replace the coolant filter and pump screen if necessary. Clean all parts and look for debris before you connect the hoses.
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Make an estimate of the total coolant volume

Use these calculations to make an estimate for the total coolant volume for your plasma cutting system.

The coolant reservoir can contain a maximum of 15.1 liters (4 U.S. gallons). But when the cutting system is fully installed, the entire system can contain between 22.7 liters – 45 liters (6 U.S. gallons – 12 U.S. gallons).

More coolant is necessary for a cutting system with long leads than a cutting system with short leads.

Make an estimate of total coolant volume in liters.


26	+	0.2534	X	Length of leads (in meters) between the plasma power supply and gas connect console for your cutting system	=	Total estimated volume (in liters)

Make an estimate of total volume in U.S. gallons.


6.8	+	0.0204	X	Length of leads (in feet) between the plasma power supply and gas connect console for your cutting system	=	Total estimated volume (in U.S. gallons)