Lean Maintenance. Joel Levitt

at something, and you can work more efficiently, Society then has surpluses over having one person do everything. Surplus comes from each person focusing on one thing and gaining the mastery and efficiency that cannot be reached by a generalist.

      In our world, if you feel sick, you might see a generalist (internist) who has a wide but shallow knowledge base. If you need a coronary bypass you had better go to a sub-specialist, and not even a general surgeon. The same thing applies to maintenance. I would hope our welders are pretty well cross-trained with all kinds of welding. Code welding in a Nuclear power plant is a specialty, and if we have that kind of work we want a specialist to do it.

      Perhaps there is a middle ground. Lean workers are workers whose skills are used well. It would be fat to have workers with skills that are unused by custom, contract, or ignorance. For example if we had that code welder working in his or her specialty once a year that would be fat. On the other hand, when an operator does TPM maintenance, the company moves toward Lean. Certainly, when an operator jumps in and lends a hand to the maintenance worker during a repair, it is Lean. Even when a maintenance worker jumps on the line to keep it running during a break it is Lean.

       Some things to look for to Lean up a company’s work force