Sun SWB 340 Notice D'utilisation page 80

Operation
5.11 Optimisation / Weight
Minimisation
5.11.1 General
The unbalance optimisation is used to minimise
operation noise.
During the optimisation the tyre is fi tted on the rim in
a specifi c position based on the result of the different
unbalance measuring runs. This generally means that,
where present, axial and radial run–out and radial and
lateral forces are reduced and thus wheel running
conditions optimised. In addition, the entity of the
compensation weights required for wheel balancing
can be reduced.
If optimisation is not required, it is possible to achieve
weight minimisation.
This is possible, for example, when the rim does not
show shape defects, meaning that wheel unbalance
depends exclusively on tyre irregularities. In this case
the unbalance of the rim can be readjusted compared
to the unbalance of the tyre in a way that the they
compensate each other and a lower correction weight
is required.
5.11.2 Operating instructions for
Optimisation / Minimisation
During tyre changing operations, as required for
optimisation/weight minimisation, the wheel balancer
can be used as a conventional wheel balancer by
another operator.
For this purpose, interrupt the optimisation/weight
minimisation program by pressing the ESC key or
STOP key. The electronic control unit will then store
step 4, 6, 10 of the current program, the rim dimensions
and all data so far measured.
If another optimisation/minimisation run is to be started
21
after an interruption, it is suffi cient to press the menu
key 21 (Fig. 5-32).
During optimisation/minimisation a measuring run
always has to be started with the START key. "Starting
by closing the wheel guard" is not operative in this case.
5-32
Compensation of unbalance of the clamping device
is cancelled by starting an optimisation or weight
minimisation run.
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