N4+ – General safety instructions

DANGER

Incorrect operation of the machine

Before installing, maintaining and putting the machine into operation, read all documents provided with the machine.
If the use of the machine is unclear in whole or in part, contact customer service and do not use the machine.
Make sure that every user has access to this document.
Instruct every user on safe and proper machine handling.

Danger to life due to an electric shock

If you come into contact with electrically charged parts, you can suffer from an electrical shock. Water increases the risk significantly.

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.
Before switching on the machine, check the power cord for damage.
Before unplugging the power cable, switch off the machine at the main power switch.
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
When liquid is leaking
Before you check or run electric cables

Exchange damaged cables with original manufacturer's spare parts.
Do not troubleshoot while the machine is running.
Only have authorized service technicians repair the machine.
Do not touch the machine and especially the cables with wet or damp hands.
Check the environment of the machine and all accessible internal areas daily for leaked liquid and remove any liquids near or in the machine immediately.
Never put any machines or devices which are powered by electricity under the machine.
Do not place objects on the machine.

WARNING

Fire hazard and / or machine damage if using the wrong software version

If you use a DentalCNC version prior to version 7.08 P2, the cooling liquid pump of the machine may overheat and ignite or it may get damaged.

Before operating the machine, update DentalCNC to Version 7.08 P2 or higher.

Respiratory disease when machining harmful materials

If you inhale harmful materials during their machining, your respiratory tracts may be damaged.

Avoid materials that harm your health.

Danger to health if using the wrong cooling lubricant

Some cooling liquids can be a serious threat to your health and / or the environment.

Only add the cooling lubricant Tec Liquid Pro to the cooling liquid. The mixing ratio is indicated on the bottle label.

Crushing hazard and risk of cutting injuries through moving machine parts

Through the moving axes and the rotating spindle you can suffer bruises and cuts.

Only operate the machine with the working chamber door fully closed and intact.
Keep the emergency release key so that only authorized persons have access to it.
Do not bypass or deactivate the safety devices of the machine.
Check the machine regularly for damage, especially the safety devices.
Have damaged safety devices repaired by customer service only.
Use only original manufacturer’s equipment and original spare parts in the machine.
Keep children and animals away from the machine.
Do not remove the housing of the machine.

Risk of injuries / Machine damage caused by broken tool and blank parts

Carefully check all tools and blanks for damage before use.

Service mode: Risk of cutting injuries and bruises as well as hazards through ejected residues

If you operate the machine in any “Service Mode” with the working chamber door open, the risk of injury is increased significantly!

Operate the machine in “User“ mode only unless you have been authorized by the machine's manufacturer to use other modes.
Even if you are an authorized user, use the “Service Modes” only when necessary.
While in any “Service Mode”: Do not reach into the working chamber while the axes are moving or during machining.

In any “Service Mode”: Everyone within range of the machine must wear protective goggles.

Hearing damage due to loud noise

If you are regularly exposed to loud machining noise, you may suffer from hearing loss and tinnitus.

If loud noise cannot be avoided, wear ear protection during machining.

Risk of injuries through loose pneumatic components under air pressure when connections are open

Loose pneumatic components can move extremely fast and unpredictably and may cause injury.

Before you run the pneumatic hoses, close the external compressed air supply.
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 air supply and the electrical source.

Contact customer service if connections are damaged or defective.

CAUTION

Risk of injuries when opening or closing the working chamber door

When you open or close the working chamber door, the moving working chamber door may crush your fingers. Objects on the machine may fall and cause injuries or damage.

When you open and close the working chamber door, use one hand and keep the other hand away from the machine.
When you close the working chamber door, ensure your hands do not get caught between the door and the machine housing.
Do not put any objects onto the machine.

Trip, fall and slipping hazards

Run cables in such a way that persons cannot trip over them.

Keep the workstation and installation site clean.

Risk of cutting injuries and burns

If you touch tools or sharp edges on blanks or the machine, you may suffer from cuts. If you touch the hot spindle body or hot tools, you may suffer from burns.

Wear gloves when you perform manual work at the machine or with blanks / tools.

Danger to health if handling the cooling lubricant incorrectly

Before using the cooling lubricant, read the safety data sheet that was supplied with the cooling lubricant.
When handling the cooling lubricant, always wear suitable protective clothing.
Always store the cooling lubricant in the original container.

Reduced ability to act with insufficient lighting

Inadequate lighting may impair your judgment and precision.

Make sure that the lighting in your working environment is adequate.

Risk of injury due to malfunctions caused by inadequate maintenance

If you do not maintain the machine as required, malfunctions that can lead to injuries may occur.

Pay attention to the intervals and conditions mentioned in the maintenance table in the operating instructions. Carry out the respective maintenance tasks accordingly.

Health risks caused by continuous strain on one side due to poor ergonomics at the workstation

In the long run, improper or one-sided positioning can be a risk to your health.

Set up an ergonomic workstation.
Make sure that the seat height and monitor position are ideal and the lighting is adequate.