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Operation
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5.10 Optimization / Weight
Minimization
5.10.1 General
Optimization is a finer form of matching.
During the opto–ride procedures the rim and tire 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 optimization is not desired, it is possible to achieve
weight minimization (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 tire.
In this case the unbalance of the rim can be readjusted
relative to the unbalance of the tire such that the
unbalances compensate each other and the smallest
possible weight for unbalance correction is determined.
5.10.2 Instructions for the optimization /
weight minimization programs
During tire changing operations, as required for
optimization/minimization, the wheel balancer can be
used as a conventional wheel balancer by another
operator.
For this purpose, interrupt the optimization/minimization
program by pressing the ESC key or STOP key. The
electronic unit will then store the 4, 6, 10 program step,
the rim dimensions and all data so far measured.
If another optimization/minimization run is to be started
after an interruption, it is sufficient to depress the menu
key F4 (Fig. 5-32).
During optimization/minimization a measuring run
always has to be started with the START key. "Starting
5-32
by closing of the wheel guard" is not operative in this
case.
Compensation of unbalance of the clamping device is
cancelled by starting an optimization or minimization
run.
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