CEMB USA C75-L (C) - Manual (Page 30)

I 0438 - 30
I 0438 - 31
GB GB
7.4.2 - Wheel balancer calibration
For calibration of the machine, proceed as follows:
- Use a medium-sized metal wheel. Example: 6" x 14" (± 1")
- Preset the wheel dimensions with
GREAT CARE.
- Follow the instructions appearing on the monitor.
7.4.3 - Ambient temperature
Ambient temperature is important for correct use of the sonars. Set the average temperature of the area where the
wheel balancer is installed.
7.4.4 - Video interface
Select “LCD”. Incorrect selection results in the images being displayed in very light colours with little contrast.
7.4.5 - Self-diagnostics
An automatic self-diagnostics cycle is provided for easier trouble shooting. At the end of the self-diagnostics cycle,
several parameters are displayed which are useful for the Technical Service Department in order to identify machine
faults.
: returns to previous menu.
7.4.5.1 - To check the encoder
When the spindle is rotated:
- the angular position “POS” should vary from 0 to 128;
- the wording
“UP” should appear when rotated clockwise and “DOWN” when rotated in the opposite direction.
Encoder check
Check for correct operation
of the distance gauge;
the number increases when
the gauge is pulled out.
Check for correct
operation of the dia-
meter gauge; the
number increases when
the gauge is rotated
outwards
Check of the width
sonar: the number
decreases when a
surface is approached to
the sonar
Check of the eccentricity sonar (option):
the number decreases when a surface is
approached to the sonar
In the event of failure or faulty operation of the wheel balancing machine, notify the Technical Service of all the para-
meters displayed.
Width