Applies to: N4+

Cleaning the cooling liquid system

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If the flow rate of the cooling liquid isn’t sufficient or the corresponding interval in the maintenance table has been exceeded, you must clean the cooling liquid system.

The task consist of the following automated processes:

Process Duration (approx.)

Cleaning

30 minutes

Rinsing

5 minutes
NOTICE

Material damage when cleaning the cooling liquid system incorrectly

If you clean the cooling liquid system incorrectly, the machine, blanks and tools will be damaged.

  • Only use Tec Powder from vhf to clean the cooling liquid system.
  • Carefully follow the instructions below.

  1. Have ready:

    1 x Tec Powder (50 g)

     

  2. Start DentalCNC.
  3. Open the Maintenance section window with the following icon in the main icon bar: 
  4. Select the Cleaning the cooling liquid system maintenance task.
  5. Confirm the current message.
    • The on-screen guide displays.
  6. Open the working chamber door.
  7. Open the cooling liquid drawer.
  8. Remove the following items from the working chamber:
    • Any blank and holder
    • The tool magazines

  9. Perform a weekly cleaning of the working chamber.

    Performing the weekly cleaning

  10. Empty and clean the cooling liquid tank.

    Exchanging the cooling liquid and cleaning the cooling liquid tank

  11. CAUTION!Pay attention to the label on the packaging of the TecPowder and wear personal protective equipment.

  12. Fill 2 l (2.1 qt) of drinking water without cooling lubricant into the tank.

  13. Add 50 g Tec Powder to the water. Stir the water until the powder is completely dissolved.

  14. Insert the tank into the machine.
  15. Close the cooling liquid drawer.
  16. Close the working chamber door.
  17. Go to the next step of the on-screen guide.
    • The cleaning process starts. The remaining time is displayed in the info area of DentalCNC‘s main application window.
  18. Wait until the process is finished.
  19. Open the cooling liquid drawer.

  20. Empty the cooling liquid tank. Refill it with drinking water without cooling lubricant.

  21. Insert the tank into the machine.

  22. Close the cooling liquid drawer.
  23. Go to the next step of the on-screen guide.
    • The rinsing process starts. The remaining time is displayed in the info area of DentalCNC‘s main application window.
  24. Wait until the process is finished.
  25. Go to the next step of the on-screen guide.
  26. Open the working chamber door.
  27. Dry the working chamber with a cloth.
  28. Open the cooling liquid drawer.
  29. Empty the cooling liquid tank.

  30. Exchange the carbon filter.

    Replace carbon pellets

  31. Thoroughly clean the cooling liquid tank.

  32. Fill in cooling liquid for the machining process.

    Filling the cooling liquid

  33. Insert the tool magazine into the working chamber.