Personal fatigue and delay (PFD)
Personal fatigue and delay (PFD)
(OP)
I have currently been doing time studies in certain areas on the manufacturing floor. We are gathering the data for a new job costing project. I was told by my boss to use a 30% (PFD) tacked onto all of my actual process times. He had told me that this was the percentage that he used 3 years ago...is this percentage still valid today? Where could I go to research this issue if i needed to?





RE: Personal fatigue and delay (PFD)
Regards,
RE: Personal fatigue and delay (PFD)
For new process establishment, I always use a 15% PF&D factor until such a time that the operators become experts in the assembly process.
After that I will actually remove ALL PF&D allowed in the processing time. My professor, and another Lean Expert told me that the first and last break account for all needed PF&D time and they dont factor ANY PF&D into thier cycle times.
30% is huge if you ask me, that is an incredibale amount of time. When I do factor PF&D, I have always heard that 15%-20% is acceptable.
RE: Personal fatigue and delay (PFD)