Motor Pulley Misalignment and Replacement
Motor pulley misalignment and excessive rubber dust were found after maintenance. Vibration measurement showed issues with the pulley and taper bush, requiring replacement and further inspection.
After maintenance:
Motor pulley was 2mm back from its axis. There was also quite a few rubber dust on the floor coming off the v-belt.
After the pulley montage and adjustment, vibration measurement was again. The motor value decreased from 11.28 mm/sto 3.63 mm/s. However, there are dominant horizontal and axial problems in the spectrum. There is a problem with the pulley and the taper bush.
• Taper bush and pulley have to replaced.
• After the pulley replacement, it should be checked with the comparator.
The current values are within the limits. But the maintenance period should not be extended.
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