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the aggregate of operations concerning the preparation, tooling, regulation, and tuning of a machine, with the aim of ensuring its performance under predetermined conditions during a definite time interval (an hour, shift, or day; the period of durability of the tool or the period for processing a set of parts). Adjustment is a part of the production process.
Adjustments are usually performed after assembly of machines (after installation) or after a temporary stoppage because of malfunction (breakdown, wear, decrease in rigidity, loss of precision, and so on). Adjustment is performed on machine tools, measuring instruments, electrical and radio equipment, transportation equipment, and tools, as well as their aggregates (for example, a transportation system or a flow production line).
The cost of adjustments may be decreased by using standardized elements and automatic adjustment devices. Adjustment costs have been reduced to a minimum for machines with programmed control and automatic control systems.