In search of the cause
Our engineer is checking again the data being provided by the customer, among them the shift schedule. Regardless of the measurement data, it is apparent, that the damages occur exclusively when the first shift is working.
When technical measurements do not get anywhere, the reason could be “human”….
After talking to the employees of this shift, the following explication was given: The employees are working on a piece-rate-basis. Therefore, some of them increased the rotational speed of the machines by hand in order to accomplish more work in less time – and to earn more money, finally.
However, the gearboxes were not designed for that pace!