For example, after hearing a vibration from a machine, the mechanic must decide whether it is due to worn belts, weak motor bearings, or any number of other possibilities. New industrial machinery often is equipped with computer control panels that indicate the source of mechanical problems. After the problem has been diagnosed, the maintenance mechanic disassembles the equipment and repairs or replaces the necessary parts. A wide range of tools may be used. For example, repairers may use a screwdriver and wrench to adjust an engine, or a hoist to lift a printing press off the ground.
Repairers use catalogs to order replacements for broken or defective parts.
When parts are not readily available, or when a machine must be quickly returned to production, repairers may sketch a part that can be fabricated by the plant's machine shop. Repairers often follow blueprints and engineering specifications in maintaining and fixing equipment. After the equipment has been serviced, the repairer reassembles and tests it. Some of the industrial machinery repairer's duties may be performed by millwrights. Working Conditions Repairers may work in stooped or cramped positions, to reach the underside of a generator, for example.