Corghi ET88 Manual De Uso página 85

OPT OPTIMIZATION PROGRAM
The OPT program allows the minimisation of any residual vibrations noticeable
when the vehicle is running even after precision balancing. These vibrations
are normally due to wheel roundness faults. The optimisation procedure allows
identification of the optimal position for the tyre on the rim, in order to minimise
the eccentricity of the rim - tyre combination.
To recall this program, proceed as follows:
- select the
- select the
A window now opens in which the machine informs the user whether or not it is
necessary to carry out the optimisation procedure; the evaluation is based on
the imbalance values detected during the last wheel spin performed, which must
therefore refer to the wheel under consideration.
this accesses the first phase of the program.
- Fit the rim on the machine without the tyre.
- Turn it until the valve (or hole, although it is preferable to work with the
valve already fitted) is at 12 o'clock.
- Select the
- Perform a wheel spin.
At the end of the spin, the system moves on to the second phase of the program.
- Take the rim off the machine.
- Fit the tyre on the rim.
- Fit the complete wheel on the machine.
- Turn it until the valve is at 12 o'clock.
Select the
Perform a second wheel spin.
At the end of the spin, the system moves on to the third phase of the program.
Following the instructions on the monitor.
- turn the wheel until the valve is at 6 o'clock (the arrow at the bottom changes
from yellow to green);
- make a chalk mark on the outside wall of the tyre at 12 o'clock;
confirm that the mark has been made by selecting the
ET 88 operator's manual
(OPTIONAL)
Utility programs icon;
Optimisation icon;
OPT 1
icon to memorise the position of the valve.
OPT 2
icon to memorise the position of the valve.
OPT 3
icon.
GB
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