Coolant replacement and its significance

Hypertherm® recommends that you replace all of the coolant at least once every 6 months, as part of routine preventive maintenance. More frequent replacement can be necessary because of environmental conditions including but not limited to contaminants in your coolant or diagnostic codes that indicate coolant problems.

Adding new coolant to the reservoir when the coolant level is low is not the same as replacing all of the coolant. All of the coolant must be removed to flush the coolant system.

Before refilling the cutting system with new coolant, refer to Remove old coolant from the system.

The use of old coolant can decrease coolant flow, which can cause higher torch temperatures that shorten the life of consumable parts.