John Bean B 300 Betriebsanleitung Seite 58

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5-31
5-32
Operation
5.11 Optimisation / Weight
Minimisation
5.11.1 General
Optimisation is a fi ner form of matching.
During the opto–ride procedures the rim and tyre are
adjusted relative to each other on the basis of different
unbalance measurements. This generally means that,
where present, lateral and radial run–out and radial
and lateral force variations are reduced and thus
wheel running conditions optimised. In addition, the
mass (balance weight) necessary for balancing can
be reduced.
If optimisation is not desired, it is possible to achieve
weight minimisation (so–called matching).
This is e. g. possible if the rim does not exhibit geometric
deformations, in other words when unsmooth wheel
running conditions are a result of a non–uniform tyre.
In this case the unbalance of the rim can be readjusted
relative to the unbalance of the tyre such that the
unbalances compensate each other and the smallest
possible weight for unbalance correction is determined.
5.11.2 Instructions for the optimisation /
weight minimisation programs
Compensation of unbalance of the clamping device is
cancelled by starting an optimisation or minimisation
run (C4 7.1.1).
F
Preparation:
— Make sure the tyre is correctly mounted on rim and
infl ated to specifi ed infl ation pressure (mounting
guide rib of the tyre must be correctly seated).
— Clamp the wheel.
— Enter correct rim dimensions, or check existing
inputs for correctness.
• Select the *-key until the Minimization indicator
blinks.
The "M" indicator will start blinking.
The display now equals Figure 5-31.
The *-indicator will be on and the
Note:
Minimization indicator will blink. If the
Minimization indicator does not blink,
check if a NORMAL wheel is selected.
• Select ENTER (1, Fig. 5-32).
To exit the Minimization mode, select: STOP (5, Fig.
5-32)
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