4. UNBALANCE OPTIMISATION
This procedure reduces the total wheel unbal-
ance by compensating for the tyre unbalance
with the rim unbalance, if possible.
The machine indicates that the procedure needs
to be performed by displaying the following warn-
ing light
. The operator can decide
to perform the procedure whenever considered
necessary.
The calculations performed by this programme
are based on the unbalance values measured dur-
ing the last spin performed which must therefore
refer to the wheel being serviced.
OPT 1
-
Move the valve to the 12 o'clock position.
-
press the
button on the monitor to confirm the opera-
tion
OPT 2
-
Place the wheel in the 6 o'clock position as
indicated on the screen. If the RPA function
is enabled, the wheel is automatically placed
in position.
-
Mark the 12 o'clock position on the outer side
of the tyre.
weight
-
press the
button on the monitor to confirm the opera-
tion
OPT 3
-
Remove the wheel from the wheel balancer
and using the tyre changer, line up the mark
on the tyre with the valve.
-
Remount the wheel on the wheel balancer.
-
press the
button on the monitor to confirm the opera-
tion
OPT 4
-
Move the valve to the 12 o'clock position.
-
press the
button on the monitor to confirm the opera-
EM9780 plus - EM9780 C plus AutomaticLine - Operator's manual
button or the
button or the
button or the
button or the
tion
OPT 5
-
Perform a spin by lowering the guard.
If significant improvements cannot be obtained,
the message "OUT" is displayed at the end of the
spin. In this case, we recommend quitting the pro-
cedure by pressing the Exit button
The operator can decide to proceed by pressing
the
or
OPT 6
Now, the real unbalance values of the wheel as it
is mounted on the wheel balancer are displayed.
-
Place the wheel in the position indicated on
the screen. If the RPA function is enabled, the
wheel is automatically placed in position.
-
The unbalances and percentual improvement
which can be obtained if the user decides to
continue the optimisation procedure appear
in the window.
If the improvement is considered insufficient,
press the Exit button
-
Make a double mark of the tyre in 12 o'clock
on the outer side position if direction in
which the tyre is fitted on the rim is not
pointed out, on the inner side position if the
direction is pointed out. If you do not wish
to invert the direction, press the Enable/
disable tyre inversion button
-
press the
button on the monitor to confirm the operation
OPT 7
-
Remove the wheel from the wheel balan-cer.
-
Rotate the tyre (inverting if necessary) on the
rim until the double chalk mark lines up with
the valve.
-
Remount the wheel on the wheel balancer.
-
press the
button on the monitor to confirm the operation
button on the monitor.
.
button or the
button or the
79
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UK
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