The distance values measured with the automatic sensor are not
the same as the values read on the millimetre rule.
The sensor has not been positioned correctly during measuring.
➥ Bring the sensor to the position shown in fig. 14 and follow the instructions in the
ENTERING THE WHEEL DATA section.
The sensor is not calibrated.
➥ Carry out the sensor calibration procedure.
The automatic sensor does not work.
The sensor was not in the rest position at switch-on (Err 10 or Err 11) and the
ENTER button was pressed to enter the geometric data with the keypad, disabling
control of the automatic sensor.
➥ Switch the machine off, return the sensor to the correct position and switch it back
on.
The sensor is not calibrated.
➥ Carry out the sensor calibration procedure.
The FU2 and/or FU3 fuses on the power supply circuit board have blown.
➥ Replace the blown fuse.
When START is pressed the wheel remains stationary (the
The guard is raised (the message "Cr Err" appears).
➥ Lower the guard.
The FU1 and/or FU5 fuses on the power supply circuit board have blown.
➥ Replace the blown fuse.
The machine displays unsteady imbalance values.
The machine has been jolted during the spin.
➥ Repeat the spin, taking care not to disturb the machine while measuring is in
progress.
The machine is not soundly installed on the flooring.
➥ Check the installation and adjust the support feet, using shims if necessary.
The wheel is not properly clamped.
➥ Tighten the clamping ring-nut firmly.
Several spins are required in order to balance a wheel.
The machine has been jolted during the spin.
➥ Repeat the spin, taking care not to disturb the machine while measuring is in
progress.
The machine is not soundly installed on the flooring.
➥ Check the installation and adjust the support feet, using shims if necessary.
The wheel is not properly clamped.
➥ Tighten the clamping ring-nut firmly.
The machine is not correctly calibrated.
➥ Carry out the sensitivity calibration procedure.
MT 2450 operator's manual
machine does not start)
GB
87