As more firms introduce automated production equipment, these workers will be needed to ensure that these machines are properly maintained and consistently in operation. However, many new machines are capable of self-diagnosis, increasing their reliability and somewhat reducing the need for repairers. Increasing imports and the relocation of production facilities abroad also are expected to dampen employment growth for these workers.

Unlike many other manufacturing occupations, industrial machinery installation, repair, and maintenance workers, except millwrights are not usually affected by seasonal changes in production. During slack periods, when some plant workers are laid off, mechanics often are retained to do major overhaul jobs and to keep expensive machinery in working order. Although these workers may face layoff or a reduced workweek when economic conditions are particularly severe, they usually are less affected than other workers because machines have to be maintained regardless of production level.