Lean Maintenance for Lean Manufacturing（精益生产的精益维修）.pdfVIP

Lean Maintenance for Lean Manufacturing (Using Six Sigma DMAIC) Before putting new and 30 or 40 year old machines together into Lean Manufacturing lines, do you know how to get the near 100% uptime required? Or, will maintenance become the tail that wags your dog? Your Achilles heel? A Barrier To Lean To compete in todays global economy and to increase profits, many factories are moving to Lean Manufacturing, the next step beyond Just In Time. Others claim lean but hedge on the concept with hidden WIP inventories because they fear what theyve seen in the past, when critical path machines go down for a maintenance break. Other managers simply budget for and bolster their maintenance department with people, training, equipment and spare parts so they can more quickly put out the fires when downtime occurs. Others increase budget (expense) to hand off maintenance responsibility to outside subcontractors. Outside service vendors may or may not service you better, but its sure nice to be able to point the finger outside when downtime cripples production. But, its still your downtime. The Maintenance Problem The underlying problem here is equipment reliability and uptime (some call it maintenance reliability). The solution is to find ways to eliminate unscheduled equipment downtime. The problem with downtime is that most maintenance people think, It just happens. Then we fix it. The problem with downtime is, You can monitor it, measure it, log it, report it, track it, attack it, or delegate it, but downtime will not go away until you eliminate it - prevent it from happening in the first place. A Solution (Lean Maintenance) What? How does one fix a machine so it doesnt break down again? Answer: To prevent downtime from happening before it occurs, you must eliminate the basic stresses that cause the downtime. What is needed is a methodology for pro