CEMB USA C88 (A) - Manual (Page 38)

I 0607 - 38 GB
Err. 20 The wheel comes to a halt before complet-
ing positioning correctly. 1. Make sure that the wheel to be balanced is at least 10” in diam-
eter.
2. Verify the correct setting of wheel dimensions on screen.
3. Verify belt tautness.
4. For wheels less than 12” in diameter wheels: disenable the eccen-
tricity measurement procedure.
Err. 22 Maximum number of spins possible for
the unbalance measurement has been
exceeded. 1. Check that a vehicle wheel has been mounted on the wheel
balancer.
2. Check belt tautness.
3. Check functioning of the phase generator and, in particular, the
reset signal.
4. Replace the computer board.
Err. 30 Clock error Replace the computer board.
Err.40/
Err.41/
Err.42/
Err.43 Eccentricity graph plotting procedure error. Perform a new eccentricity measurement.
Err.45/
Err.46/
Err.47/
Err.48 Eccentricity graph value display readout
error. Perform a new eccentricity measurement.
Err.50/
Err.51/
Err.52/
Err.53 Eccentricity graph current value cursor plot-
ting procedure error. Perform a new eccentricity measurement.
Err.54 Sonar readout error.
Sonar value readout impossible. 1. Position the eccentricity measurement sonar correctly before
performing the measurement.
2. Check eccentricity sonar connections.
3. Check the power supplies on the power board.
4. Replace the eccentricity measurement sonar.
5. Make sure that the wheel does not halt before completing at least
4/5 revolutions after the fi rst braking impulse.
6. Verify belt tautness.
7. Replace the computer board.
Err.55 Sonar readout error.
Sonar values are insuffi cient for correct
measurement of eccentricity. 1. Position the eccentricity measurement sonar correctly before
performing the measurement.
2. Make sure that the wheel does not halt before completing at least
4/5 revolutions after the fi rst braking impulse.
3. Verify belt tautness.
4. Mount a wheel of medium dimensions (14”x5 ¾”) and perform an
eccentricity measurement . If in these conditions error 55 no longer
occurs, this means that the wheel inertia causing the problem is
such as to half the wheel before having acquired the minimum
number of values necessary for reliable eccentricity measurement.
Err.56 Lateral Sonar readout error.
Lateral Sonar value readout impossible. 1. Position the eccentricity measurement lateral sonar correctly
before performing the measurement.
2. Check eccentricity lateral sonar connections.
3. Check the power supplies on the power board.
4. Replace the eccentricity lateral sonar.
5. Make sure that the wheel does not stop before completing at least
4/5 revolutions after the fi rst braking impulse.
6. Verify belt tautness.
7. Replace the computer board.
Err.57 Lateral Sonar readout error.
Lateral Sonar values are insuffi cient for cor-
rect measurement of lateral eccentricity. 1. Position the eccentricity lateral sonar correctly before performing
the measurement.
2. Make sure that the wheel does not stop before completing at least
4/5 revolutions after the fi rst braking impulse.
3. Verify belt tautness.
4. Mount a wheel of medium dimensions (14”x5 ¾”) and perform
an eccentricity measurement . If in these conditions error 57
no longer occurs, this means that the wheel inertia causing the
problem is such as to half the wheel before having acquired the
minimum number of values necessary for reliable lateral eccentri-
city measurement.
Err.58 Radial and lateral Sonar readout error.
Radial and lateral Sonar value readout
impossible. 1. Check points Err. 54
2. Check points Err. 56