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Maintainability
is the ease and speed with which any maintenance activity can be
carried out on an item of equipment. May be measured by Mean Time
to Repair. Is a function of equipment design, and maintenance
task design (including use of appropriate tools, jigs, work
platforms etc.).
Once a piece of equipment has failed it must be possible to get
it back into an operating condition as soon as possible, this is
known as maintainability. To calculate the maintainability
or Mean Time To Repair (MTTR) of an item, the time required to
perform each anticipated repair task must be weighted
(multiplied) by the relative frequency with which that task must
be performed (e.g. no. of times per year). MTTR data supplied by
manufacturers will be purely repair time which will assume the
fault is correctly identified and the required spares and
personnel are available. The MTTR to the user will include the
logistic delay
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controll measurement, tracibility, TQM, Operations Management, Engineering, industrial engineering, Work Study, Time Study, work station, line balancing, manufacturing process analysis, productivity, ergonomics, ergonomical design, bill of materials requirements plan, work instruction, flow chart, Total Productive Maintainance policy, Reliability centered maintenance strategy, preventive Maintenance, logistics, inventory, corrective preventive Maintenance, Condition Monitoring, Computerized Maintenance Management System, Failure Modes and Effects Analysis, Mean Time Between Failures, Mean Time To Repair, Project Evaluation and Review Technique Chart PERT, MTTR, MTBF |