VHF N4+ Originalbetriebsanleitung Seite 60

EN 60
1. Visually inspect all tools.
2. Check the tool life values in DENTALCNC.
3. Replace worn tools with new ones.
Do rings on the tools sit in the groove on the
tool shank?
How to check this:
Visually inspect all tools and push rings that have
moved into the groove again.
Are the tool magazine inserts worn?
If applicable:
Replace the tool magazine inserts with new ones.
Do the parameters of the job in the software
correspond to the parameters of the blank?
How to check this:
Make sure that the following parameters of the job
and of the blank in the machine correspond to each
other. Also make sure that they are suitable for the
objects that you want to machine.
Material type
n
Blank dimensions
n
Indications (types) of the individual objects
n
Do you use the latest version of the manu-
facturing software that is released for the
machine?
To update DENTALCAM & DENTALCNC, follow the
instructions in the documentation for the man-
ufacturing software.
Are the object files of sufficient quality?
How to check this:
1. Check the quality of object files (STL files) in your
CAD application or an STL viewer. Especially, con-
sider the manufacturer information on wall thick-
ness and border thickness.
2. If necessary, adjust the settings of your scanner and
scan application.
Is the collet chuck of the spindle contaminated
or is it loosely seated in the spindle?
If applicable:
1. Clean the collet chuck with the provided spindle
service set.
2. When you insert the collet chuck into the spindle,
make sure that it is properly seated.
Did you exchange the collet chuck at the recom-
mended interval?
How to check this:
Verify the recommended interval for exchanging the
collet chuck in the maintenance table. If necessary,
exchange the collet chuck.
The computer displays that the flow rate is too
low
cooling liquid soiled?
clogged?
The computer interrupts the job and displays
that the air pressure is too low

lator – on page 20
air supply system?
that jobs are frequently interrupted?
Original Operating Instructions: N4+
Version: 12/16/2021
You can resolve this problem while the job
execution is interrupted. DENTALCNC
continues the job as soon as the problem is
resolved.
Is cooling liquid lacking in the tank? Is the
If applicable:
Clean the tank. Fill in clean cooling liquid.
Is the filter in the cooling liquid tank clogged?
If applicable:
Clean the filter and the tank. Fill in clean cooling
liquid.
Are the liquid nozzles in the working chamber
If applicable:
Clean the nozzles with the inter-dental brush.
You can resolve this problem while the job
execution is interrupted. DENTALCNC
continues the job as soon as the problem is
resolved.
Is the compressed air regulator properly set?
Set the air pressure at the compressed air regulator
to a correct value.
Adjusting the air pressure with the compressed air regu-
Is the error caused by the external compressed
How to check this:
1. Close the main external compressed air supply
valve.
2. Check if all pneumatic hoses are properly seated in
their connections and are undamaged.
3. Check if your compressor is switched on and set
correctly.
4. Open all required valves of your compressed air
supply system.
Does the air pressure fluctuate significantly so
If applicable:
N4+ – Troubleshooting