4. Why TPM: Downtime
(a) Breakdowns due to equipment failure.
(b) Setup and adjustment e.g . exchange of die injection moulding machines etc.
5. Why TPM - Speed losses
(a) Idling and minor stoppages e.g. abnormal operations of sensors
(b) Reduced speed e.g. discrepancies between design and actual speed of equipment
6. Why TPM - Defects
(a) Defect in process and rework ( scrap and quality defects requiring repair )
(b) Reduced yield between machine startup and stable production.