The Challenge of Overtime in Factories
Overtime in a factory, as far as I am concerned, is a chronic issue. Once it becomes a practice, it turns into a demand or deemed compulsory right of employees. From the beginning, it's important to inculcate a habit of finishing the target numbers, whether in a line concept or group concept.
When Overtime Occurs
Overtime should only occur when there is a sudden demand from the customer. In a normal synchronizing flow or Kaizen line, once the cycle time is analyzed and set, it becomes a manpower empowerment to achieve the daily goal, unless there is an unfortunate machinery breakdown or deficiency in part numbers. These issues could be avoided or diverted if proper supporting staff is made responsible. Leadership plays an important role in this process.
Impact of Overtime on Work Culture
Overtime influences favoritism on the shop floor and spoils the work culture of motivated employee groups who strive to achieve target numbers by the end of the shift. Encourage motivated employee groups who can exceed norms by multitasking, and recognize them with appreciation or get-togethers at the end of every month.
A Case Study in Leadership
I had an opportunity where I removed the supervisor concept for a production line. I identified one highly motivated worker and made them a leader responsible for output in a Kaizen line. The result was amazing, achieving a record in both output and line rejection!