30
Operational Selections
geodyna optima
Operator’s Manual
11.1.1-1
F1
11.1.1-2
11.1.1-3
H
11.1.1 PULL calibration
The PULL calibration procedure is available if the OPTI
LINE mode is installed.
This procedure is for checking and correcting any
parallax problems between the rear scanner running
plane and the axis of the machine wheel shaft, to
guarantee precision measurement of the tread conicity
indices.
The procedure uses the special Calibration Tool
supplied, on whose front surface the rear laser's beam
must run (Fig. 11.1.1-1).
CAUTION:
HANDLE THE CALIBRATION TOOL
WITH CARE. AVOID BUMPS AND KEEP IN A SAFE
PLACE.
Calibration must be carried out regularly.
When using the Set of Wheels procedure, the last
calibration should have been performed within a month.
To perform the PULL calibration, proceed as follows:
•
Open the OPTIMA screen page (
F6
).
•
Select key
F3
to open the OPTIMA
PARAMETERS screen page.
•
Select key
F1
(Fig. 11.1.1-2).
•
Install the Calibration Tool so that the blind hole
used as a reference faces the outside of the
machine, as illustrated (
H
, Fig. 11.1.1-3).
•
Turn the front surface of the Tool towards the
back of the balancer, angle the plate towards
the scanner, then lock it in position using the
pedal brake.
•
Lower the wheel guard.
•
Press
F6
to start calibration.
The rear scanner starts up, starting the calibration.
If the difference between the PULL index calculated by
the user calibration and the value set by the factory
calibration is less than 0.5, the operation ends with a
positive result and the text OK appears.
If not, error E400 is signalled (see "Error Messages"
section).
•
Remove the calibration tool.
Note
: For an on-line description of the procedure
select the HELP key in the OPTIMA
PARAMETERS screen page.
Summary of Contents for geodyna optima
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