Applies to: E4

Cleaning the cooling liquid system

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)

    • 1 x Collecting container with filter for machining residues (filter optional)

  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.
    • The on-screen guide displays.
  5. Open the working chamber door.
  6. Pull the cooling liquid tank out of the machine.
  7. Remove the following items from the working chamber:
    • Any blank and holder
    • The tool magazines

  8. Perform a weekly cleaning of the working chamber.

    Performing the weekly cleaning

  9. Empty and clean the cooling liquid tank.

    Exchanging the cooling liquid and cleaning the cooling liquid tank

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

  11. Fill 1 l (1.1 qt) of drinking water into the container.

  12. Add 25 g Tec Powder to the water. Stir the water until the powder is completely dissolved.

  13. Soak a cloth in the TecPowder solution and remove contamination.

    1. Working chamber door seal
    2. Sealing lip of cross brace
    3. Contact surface
    4. Frame surface of view window
    5. Sealing lip of return mat
    6. Drip slide
  14. Insert the tank into the machine.
  15. 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.
  16. Wait until the process is finished.

  17. Empty the cooling liquid tank. Fill it with drinking water.

  18. Insert the tank into the machine.

  19. 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.
  20. Wait until the process is finished.
  21. Go to the next step of the on-screen guide.
  22. Open the working chamber door.
  23. Dry the working chamber with a cloth.
  24. Empty the cooling liquid tank.
  25. Thoroughly clean the cooling liquid tank.

  26. Fill in cooling liquid for the machining process.

    Filling the cooling liquid

  27. Insert the tool magazine into the working chamber.