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Operation
H2
Silent running cannot be improved.
However, it is possible to readjust the tyre relative to
the rim to achieve signifi cant weight minimisation (i.e.:
smaller balance weights) without having an adverse
effect on silent running.
Depending on the readings, there are several
possibilities for proceeding with the program. These
possibilities are described below.
Reading === - OP.7
Turn the tyre over on the rim (the left display bars are
rotating).
Option 1: Turn the tyre over on the rim (normal program).
- Readjust the wheel according to the left direction
indicator and make a double mark on the left side of the
tyre exactly perpendicular to and above the main shaft.
- Remove the wheel from the machine.
- Turn the tyre over on the rim and readjust until the
double mark coincides with the valve.
- Clamp the wheel on the balancer and readjust it so
that the valve is exactly perpendicular to and above
the main shaft.
- Press the PRO-MATCH key (2) to acquire the valve
1 2
position.
Reading OP.8 appears.
- Press the START key (3) (check run).
If balancing optimisation (silent running) has been
carried out correctly (according to the program cycle),
after the check run the machine automatically returns to
the type of weight positioning previously selected and
indicates the residual dynamic imbalance on the wheel.
- Balance the wheel according to the readings.
Both optimisation and balancing are accomplished.
Message E9
Message E9 means that at least one error occurred
during the optimisation cycle. Press the STOP key
(4) to exit the optimisation program and repeat
optimisation if necessary.
Option 2: Do not turn the tyre over on the rim
- Press the F key (1).
3
4
The result is recalculated.
Reading OP.7 - = = = or H0 or H2 appears
5-16
- To go to === - OP.7 (turning over the tyre) press the
F key (1) again.
Option 3: Abort optimisation
- Press the STOP key (4) to exit the OP program and
return to the balancing program
The imbalance on the wheel is shown on the readout.
- Balance the wheel according to the readings.
Reading OP.7 - ===
Readjust the tyre on the rim (the right display bars light
up permanently).
Option 1: Readjust the tyre on the rim
(normal program)
• Readjust the wheel following the right direction
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