18
Operational Selections
geodyna optima
Operator’s Manual
9.4.2-0
9.4.2-1
9.4.2-2
9.5-3
9.5-1
9.5-2
9.4.2 Geometric matching with
only the rim
(fig.
9.4.2
-0)
• After having clamped the rim to analyse on the balancer,
press F6 on the “OPTIMA MATCHING” screen.
• Lower the wheel guard and press the START key: the
laser scanners carry out the runout measurement in
the bead seats. At the end of the measurement the
control software prompts the alignment of the rim valve
at 12 o’clock (fig.
9.4.2
-1).
• Press F6 to confirm.
• Release the rim and move it to the tire changer to fit
the tire (fig.
9.4.2
-2).
• After the tire changer, clamp the wheel (rim + tire) on
the balancer and confirm with F6.
• Lower the wheel guard and press START: the balancer
will proceed with the runout calculation with the tire
fitted.
To carry out the geometric matching of the complete
wheel proceed as indicated in the “Geometric
matching” section.
9.5 Rim Only Diagnosis
Optima can be used to perform an analysis of the rim
only and to process its structural parameters,
independently of the tire.
If only the rim is clamped, the machine always
automatically recognises the presence of a rim without
the tire.
To activate the "Rim only diagnosis" function:
• enable "1" in the "Optima Parameters" screen at the
"RIM ONLY" item (
m,
Section 9.6).
• start the run.
During the run measurements are taken on the lateral
internal profiles and on the bead recesses (fig. 9.5-1).
The laser reading positions on the rim are the same as
the contact points obtained with a circle with 16mm
diameter, as shown in figure 9.5-2.
When the run is complete, the graph showing the curves
for the radial Run-out of the right and left bead recesses
appears (fig. 9.5-3).
Only in the RIM ONLY function, the graph shows three
different coloured markers, indicating the first harmonic
peak position for:
Left bead recess - Yellow triangle
Right bead recess - Red triangle
Mean of the entire rim - Grey triangle
When the rim is turned, it will be stopped by the brake
in each peak position, to facilitate rim marking. The
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