General safety instructions

Electric shock due to touching live parts

• Do not remove the housing of the machine.

• Only have qualified electricians work on any electrical equipment.

• Make sure that an operational residual current device is installed on the electrical circuit of the machine.

• Run electrical cables so that they cannot be damaged by sharp edges.

• Check the power cable and the socket for damage before every startup.

• In the following cases, disconnect the machine immediately from the electrical source and secure it against restarting:

• When machine connections or electrical cables are damaged

• Before you check or run electrical cables

• Do not touch the machine and especially the cables with wet or damp hands.

• Do not place any liquid containers on the machine.

Electric shock when disconnecting the power cable with the main power switch in “ON” position.

• Follow the following sequence:

1. Switch off the machine at the main power switch.

2. Disconnect the power cable.

• Do not operate the machine unattended unless:

• The working chamber of the machine is completely cleaned.
• Unauthorized persons have no access to the machine.
• The room in which the machine is located has an automatic fire detection system.

Danger of becoming trapped due to moving housing parts

• Working chamber door

• Accessories container

• If you move these housing parts, use only the designated grip points.

• Make sure that your hands do not become trapped during movement.

Crushing hazard due to moving machine parts in the working chamber

• Only operate the machine with the working chamber door fully closed and intact.

• Do not bypass or deactivate the safety devices of the machine.

• Check the machine regularly for damage, especially the safety devices.

• Keep the emergency release key so that only authorized persons have access to it.

Danger of cutting and burning

• Always wear gloves when performing manual work on the machine or when working with blanks / tools.

• Only touch tools on the shaft.

• Do not touch the spindle body after machining.

Respiratory disease due to machining residues

• Do not use compressed air to clean the working chamber.

Risk of injury due to flying splinters

• Do not use compressed air to clean the working chamber.

Pneumatic components

Risk of injuries due to fast and unpredictable movements of pneumatic components

• When you run the pneumatic hoses, close the external compressed air supply.

• Before conducting compressed air through the hoses and connectors, verify that the hoses are securely inserted into the correct connectors and that they are not damaged.

• Before you check the pneumatic hoses and pneumatic connections, set the air pressure to a minimum value.

• In case of defective machine connections and pneumatic hoses, disconnect the machine from the external compressed air supply and the electrical source.

• Contact customer service if connections are damaged or defective.

Air extraction system

Respiratory disease when machining harmful materials

• Always use a suitable air extraction system during dry machining.

• Use a suction unit with fine class M dust filter.

• Avoid materials that are hazardous to your health.

Risk of injuries due to unsuitable spare parts / extra equipment Physical component which must be obtained separately and which adds new functionality to your machine. / accessories

• Use only original spare parts, original extra equipment Physical component which must be obtained separately and which adds new functionality to your machine. and original accessories for the machine.

Bearing failure and electrical damage to the spindle in case of contaminated compressed air

The incoming compressed air must be dry and oil-free according to ISO 8573-1:2010 because the compressed air regulator only serves as an indicator for contaminated air.

• Make sure that the compressed air meets the specifications in chapter Technical data.

• Check the water separator of the compressed air regulator daily for contamination.

• Never use the machine if there is water, oil or solid particles in the water separator.

Damage caused by the warm-up phase being omitted

When initially starting a machine or if it has not been used for at least 2 weeks, you must warm up the spindle before use.

• Use the warm-up process in DentalCNC.

Damage due to poor maintenance

• Clean and replace the collet chuck according to the maintenance table.

Damage caused by unsuitable tools

• Recommendation: Use only original tools from vhf.

• Use tools only within the maximum lifetime shown in DentalCNC.

• See the requirements in the chapter Technical data.

Impact damage

• When working in the working chamber, do not apply force to the spindle in any way.

Machine damage due to incompatibility, malfunctions and/or incorrect operation of the software

• Always use the latest version of the program that your machine supports according to vhf.
• Ensure that your CAM computer The computer that is connected to your machine and which runs DentalCAM and DentalCNC. meets all system requirements.
• Before installing or operating the machine, read the documentation for the programs.

Damage to the control electronics due to strong mains voltage fluctuations and voltage peaks

• Connect the machine to a separately protected circuit or ensure that no devices are connected that cause severe mains voltage fluctuations when powered on.

• If strong voltage fluctuations cannot be avoided, install a surge protector to safeguard the machine against strong voltage fluctuations.

Air extraction system

Machine damage during dry machining without an air extraction system

• Always use a suitable external air extraction system during dry machining.

Working chamber

Damage to tools and blanks as well as defective machining results due to job cancelations

Machine damage caused by broken tool and blank parts

• Carefully check all blanks and tools for damage.

Damage to components in the working chamber due to compressed air

• Do not use compressed air to clean the working chamber.