CEMB USA C218 User Manual - Manual (Page 19)

19
Use and maintenance manual Rev. 04-2011
ENGLISH
8. Special calibrations and functions
In order to gain access to the “Reserved Calibrations and
functions” it is necessary to enter a password.
Any incorrect operation within the functions described
below could impair the operation of the wheel balancing
machine. Unauthorized use will cause cancellation of the
warranty on the machine.
8.1 CONTROL OF ECCENTRICITY
MEASUREMENT
Set to ON/OFF to enable/disenable tyre eccentricity 1.
measurement when starting the unbalance measure
ment
Set the phase shift angle between the eccentricity 2.
measurement sonar and the unbalance correction
point (top vertical, 12.00 o’clock position)
Recommended values: sonar mounted on the guard =
72°.
8.2 PRESETTING THE CUSTOMER AND
USER NAME
The machine can be customized by presetting:
a) The name appearing on the Initial screen (screen-save).
b) The name of 4 different machine users (USER NAME).
An “ideal” keyboard appears on the monitor with the set of
characters available for composition of the wordings.
The Customer’s name consists of three lines, each max. 30
characters. The USER NAME consists of a wording max. 15
characters.
8.3 CALIBRATIONS
When is pressed from the Special Functions menu,
access is gained to the Calibration menu.
8.3.1 Gauge calibration
8.3.1.1 Distance gauge calibration
To calibrate the distance gauge, set it in rest position and
then on the adapter plane.
When done, set the gauge in rest position. If calibration is
correct, the wheel balancer is ready for operation, otherwise
an error message may be displayed if there are errors or
malfunctioning; in this case repeat calibration.
to cancel the distance gauge calibration
function if has erroneously been accessed.
Special calibrations and functions
8.3.1.2 Diameter gauge calibration
To calibrate the diameter gauge, place it on the adapter
fl ange and press . For better calibration turn the gauge
downward and position it 40 mm away from the adapter plane.
On the screen a value is shown near the word POS: if it is
256+/- 3°, set the gauge to rest position, otherwise press
.
to cancel the diameter gauge calibration function
if it has erroneously been accessed.
8.3.2 Balancing machine calibration
To calibrate the balancing machine, use a wheel with steel
rim of average dimensions, e.g. 6” x 14” (±1”).
To properly perform the procedure:
Mount a wheel on the machine, even unbalanced, and ▪
very carefully set its dimensions.
INDICATION
Setting incorrect measurements will result in the machine
not being correctly calibrated, and balancing of subse-
quent wheels will hence be incorrect until the machine is
recalibrated with the correct measurements!!
Follow the on-screen instructions. ▪
8.4 WHEEL BALANCING MACHINE SELF
TEST
An automatic self-diagnostic cycle is provided for easier
trouble-shooting (
Consult the extraordinary mainte-
nance manual or contact Technical Service).