John Bean VPI System IV, Руководство по эксплуатации

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5.5.4.2-2
5.5.4.2-1
5.5.4 Optimization/ Weight minimization
5.5.4.1 General
Optimization is a finer form of matching.
During the Optimization/Minimization 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 optimized.
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 deter-mined.
5.5.4.2 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 current program step,
the rim dimensions and all data so far measured. The
menu field “Optimization interrupted” (Fig. 5.5.4.2-2)
appears.
By pressing the menu key associated with this menu
field you can proceed with the program exactly where
it has been interrupted.
The screen will view how to proceed.
After interruption by operation of the ESC key or STOP
key or the balancing key, the readings refer to the
unbalance of the latest measuring run.
If another optimization/minimization run is to be started
after an interruption, it is sufficient to depress the menu
key for optimization/ minimization (Fig. 5.5.4.2-1).
If a measuring run has to be interrupted by operation
of the STOP key (e. g. because wheel is incorrectly
clamped or in the case of an emergency), the machine
will switch back to the previous program step.
Optimization/minimization is then continued simply by
entering the valve position of the wheel once again.
During optimization/minimization a measuring run
always has to be started with the START key. Starting
by closing of the wheel guard is not operative in this
case.
Compensation of unbalance of the clamping device is
can-celled by starting an optimization or minimization
run.