VHF Z4 Originalbetriebsanleitung Seite 77

Z4 – Troubleshooting
The machining results are not satisfactory and
/ or tools keep breaking
Do the tool positions in the Tools section corres-
pond to the tools in the respective tool magazine?
If not, the machine uses the wrong tools during job
execution.
How to check this:
1. Via the touchscreen, compare the tool positions in
the Tools section with the tools in the cor-
responding tool magazine.
2. Replace the wrong tools in the tool magazine with
the correct ones.
Is the blank properly mounted?
How to check this:
Remove the blank and remount it. The groove of
blocks has to properly sit on the corresponding pos-
itioning pin.
Are bolts, fixing mechanisms, gaps and open-
ings of the blank holder contaminated by
processing dust?
If applicable:
Clean the mentioned components thoroughly.
Is the measuring key contaminated?
If applicable:
Clean the measuring key with a brush.
Are the tools worn?
How to check this:
1. Visually inspect all tools.
2. Check the tool life values via the touchscreen.
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.
1. Check the quality of object files (STL files) in your
2. If necessary, adjust the settings of your scanner and
or is it loosely seated in the spindle?
1. Clean the collet chuck with the provided spindle
2. When you insert the collet chuck into the spindle,
mended interval?
The machine displays that the flow rate is too
low
cooling liquid soiled?
clogged?
I have exchanged the tool magazine inserts
and now there are no holes for the tools
anymore
Tool magazine inserts are delivered without drilled
holes for tools. You drill them with the machine.
Original Operating Instructions: Z4
Version: 12/15/2021
Material type
n
Blank dimensions
n
Indications (types) of the individual objects
n
Are the object files of sufficient quality?
How to check this:
CAD application or an STL viewer. Especially, con-
sider the manufacturer information on wall thick-
ness and border thickness.
scan application.
Is the collet chuck of the spindle contaminated
If applicable:
service set.
make sure that it is properly seated.
Did you exchange the collet chuck at the recom-
How to check this:
Verify the recommended interval for exchanging the
collet chuck in the maintenance table. If necessary,
exchange the collet chuck.
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.
Contact customer service.
EN 77