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65. In order to foster the kaizen philosophy, engineers and managers created an environment like a clean room, brightly lit
like a pharmaceutical laboratory, with a place for everything and everything in its place. Traditional automobile factories
are dark and noisy places, filled with flying sparks and the pounding of metal stamping machines. The Cambridge plant,
by contrast, is painted in light colors and boasts a spotless floor—the result of constant sweeping up with small brooms
and dustpans. These come from “5s” stations, a key element of lean production. Cleanliness plays such a large role
because at a typical automobile plant most defects are caused by the process of manufacturing itself, by bumps and
scrapes from workers. That is why there are no rings or watches on the line at Cambridge, no jeans with rivets to scratch
bodies, and why fragments of metal are swept up before they can infiltrate the paint system. The Lexus philosophy is
based on the fundamental insight that quality must be built into each part of the production process, not applied as an
afterthought through inspections or fixes.
66. At K&N, data that indicate the need for work process improvements come from operations inspections, process audits,
team members, and guest feedback.
67. When the cause of a problem is not known, a special problem-solving process is used at K&N. This includes finding
the root cause of the problem, determining the best solution, designing an improvement and implementing it, determining
if the results are positive, and if so, standardizing the solution. The problem-solving process has assisted K&N in reducing
variability in processes across the organization, improving production and service processes, and achieving better
performance.
68. K&N uses a comprehensive system for process management that incorporates design, control, and improvement.
Design of work processes is linked to product offerings; as new or improved products are designed, redesign of work
processes may be necessary. First, equipment needs are analyzed, based on the equipment capability requirements and
selection characteristics. Next, workforce needs are determined, including the design of workstations and the capabilities