VHF R5 Mode D'emploi D'origine page 61

R5 – Maintenance and do-it-yourself
Exchanging the main fuse
The internal power supply of the machine has a main
fuse that is accessible from the outside and can be
replaced if necessary.
As a replacement fuse, only use a fuse of the fol-
lowing type: T6,3A L250V
A new main fuse is available as spare part from
customer service.
1.
Switch off the machine at the main power switch.
2.
Remove the power cord from the connection
panel.
3.
Remove the cover of the fuse.
F . 89 – C (
IG OVER OF THE FUSE MARKED ORANGE
4.
Remove the defective fuse and replace it with a
new fuse.
5.
If you do not have a replacement fuse ready, take
the replacement fuse from the right side of the
fuse cover and put it into the left side of the fuse
cover.
6.
Remount the fuse cover.
Calibrating the axes
Deterioration of machining results caused
by an incorrect calibration
At delivery, your machine is already calibrated. As
long as your machining results are accurate, a new
calibration is not necessary. A calibration takes much
time and will deteriorate the machining results if it is
improperly executed.
By calibrating the machine with test and calibration
specimens, it may be possible to improve the
machining results.
)
Your machine is delivered with a calibration set. It
contains the following parts:
You can calibrate the machine as follows:
1.
2.
3.
4.
Original Operating Instructions: R5
Version: 5/10/2019
NOTICE
In case of inaccurate machining results, try adjust-
ing the machining conditions first: Check the fix-
ation and quality of the blank and the state of the
tool.
Before
calibrating the machine, contact customer
service.
Be very careful
when measuring and entering
data during calibration. When in doubt, abort the
calibration.
The documentation for the manufacturing soft-
ware contains all information on calibrating the
machine. Therefore, you will only find inform-
ation specific to this machine in this document.
Calibration blanks which are used to mill cal-
n
ibration and test specimens
A tool for milling the calibration or test spe-
n
cimens
A micrometer for measuring the machining pre-
n
cision
Have the calibration set readily available.
Mount the calibration blank into the blank holder.
Follow the instructions on calibrating the machine
in the documentation for DentalCNC.
Keep all parts of the calibration set except used
calibration blanks for further use.
EN 61