CEMB USA C71_2 evo (D) User Manual - Manual (Page 16)

16
Use and maintenance manual Rev. 10-2013
ENGLISH
6.2 UNBALANCE OPTIMISATION
This operation is performed to reduce the static unba-
lance of the wheel.
It is suitable for static unbalance values in excess of 30
grams.
a. If no unbalance was measured before, START appears
on the display. Press this button to proceed.
b. Make a reference mark on the flange and the rim (using
a piece of chalk, for example).
With the aid of a tyre remover, turn the tyre on the rim
by 180°.
Refit the wheel in such a way that the reference marks
on the rim and the flange coincide.
Press START to begin reading.
c. RH display: percentage reduction value
LH display: actual static unbalance value which can be
reduced by rotation
d. Mark the two positions of the rim and tyre, and turn the
tyre on the rim until the positions coincide to achieve
the optimisation shown on the display
To cancel optimisation at any time, press .
6.3 OPPOSITE POSITION
The normal balancing condition requires the correction
weights to be applied at the top (12 o’clock) when the
symbol is displayed:
If “OPPOSITE POSITION” is enabled, the phase displays
also indicate the weight application position at the bottom
(6 o’clock) to facilitate cleaning the rim and the relative
application of adhesive weights. The symbol used is:
6.4 SELF-DIAGNOSTICS
The machine can perform self-diagnostics to check the
LED’s on the control panel and make sure the encoder
reads correctly.
To perform this operation, view the SETUP menu.
In the self-diagnostics sequence, all the LED’s on the pa-
nel light up for a few seconds in order to check operation.
When the LED’s go out, the machine automatically moves
on to the encoder reading phase. When the wheel is turned
manually (forwards and backwards), the display shows its
exact position. The value lies between 0 (zero) and 255.
TYRE
POSITION
RIM POSITION
Setup