CEMB USA C212 User Manual - Manual (Page 13)

13
Use and maintenance manual Rev. 10-2010
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 previously, a message
appears on the display asking you to press START,
otherwise go to step b
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 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.
6.4 CALIBRATION
To calibrate the machine, proceed as follows:
▪ Fit an average size wheel with a metal rim on the shaft.
Example: 6” x 15” (± 1”).
▪ Set the wheel measurements as described in paragraph
USE OF THE WHEEL BALANCER.
cAuTIoN
s
eTTING INcoRRecT dImeNsIoNs Would meAN ThAT The mAchINe
Is NoT coRRecTly cAlIbRATed
, T
heRefoRe
,
All subsequeNT
meAsuRemeNTs WIll be INcoRRecT uNTIl cAlIbRATIoN Is peR -
foRmed oNce AGAIN WITh The coRRecT dImeNsIoNs
.
Display the SETUP menu:
1. Press to view the CALIBRATION
function.
TYRE
POSITION
RIM
POSITION
Setup
2. Add a sample weight to the outer side, in any position.
Sample weight: 60 g. (2.00 .oz) for car
300 g. (10.0 .oz) for truck
.