2.
If there is no green check mark, follow the instruc-
tions for inserting tool magazines.
3.
If there is no green check mark although the
correct tool magazine is mounted, clean the
magazine and the tool magazine holder.
The machining results are not satisfactory
and / or tools keep breaking
Do the tool positions in the Tools section
correspond 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
positioning 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.
n
Material type
n
Blank dimensions
n
Indications (types) of the individual objects
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
recommended interval?
How to check this:
Verify the recommended interval for exchanging
the collet chuck in the maintenance table. If neces-
sary, exchange the collet chuck.
The machine displays that the flow rate is
too low
Is cooling liquid lacking in the tank? Is the
cooling liquid soiled?
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
clogged?
If applicable:
Clean the nozzles with the inter-dental brush.
Z4 – Troubleshooting
EN 73
Original Operating Instructions:Z4
Version: 12/5/2018
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