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Maintenance
Tasks for one-day intervals
Examine the coolant condition and level
Examine the coolant condition and level in the plasma cutting system. Replace contaminated coolant. Add coolant if the level is low.

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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
  - Do a test of the inlet pressures
    While the gas flows, do a test of gas pressures in preflow, cutflow, and pierceflow modes to find if the incoming gas pressure is in a range that complies with the inlet-pressure requirements for your cutting system.
  - Examine the gas regulators
    Before cutting system operation, examine the regulators on the supply gases to make sure that the pressures and flow rates are correct. Adjust the regulators on the supply gases, if necessary.
  - Examine the shield-water regulator (if applicable)
    Before cutting system operation, examine the regulator on the shield water supply to make sure that the pressure and flow rate are correct. Adjust the regulator on the water supply, if necessary.
  - Examine the air filter
  - Examine the connections between the system components
  - Examine the coolant condition and level
    Examine the coolant condition and level in the plasma cutting system. Replace contaminated coolant. Add coolant if the level is low.
  - Maintenance for torch and consumable parts
  - Examine the torch lead
    Examine the torch lead for signs of damage or loose connections. Make sure that the torch lead obeys bend-radius requirements in the instruction manual that came with your cutting system.
- 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.
Diagnostics and Troubleshooting
Parts List
Wiring Diagrams

Examine the coolant condition and level

Examine the coolant condition and level in the plasma cutting system. Replace contaminated coolant. Add coolant if the level is low.

Remove the cap from the reservoir inlet on top of the plasma power supply.
Examine the reservoir internally for coolant contamination. OptionDescription
If you find any contamination Replace all of the coolant.
Note:
Refer to Remove old coolant from the plasma cutting system.

If you do not find contamination Continue to the next step.

If you find any contamination	Replace all of the coolant. Note: Refer to Remove old coolant from the plasma cutting system.
If you do not find contamination	Continue to the next step.

If the coolant is below the base of the inlet, add coolant to the reservoir until the coolant is at the base of the inlet.

The image shows the reservoir inlet location on the XPR170 and XPR300 plasma power supply.

CAUTION

WET FLOOR

If you put too much coolant in the reservoir, the coolant can spill onto the floor. Coolant can cause floors to become slippery.

Be careful not to put too much coolant in the reservoir.

Install the cap on the reservoir inlet.