Industrial machinery mechanics typically do the following:

• Read technical manuals to understand equipment and controls
• Disassemble machinery and equipment when there is a problem
• Repair or replace broken or malfunctioning components
• Perform tests to make sure that the machine is running smoothly
• Adjust and calibrate equipment and machinery.

Machinery mechanics use technical manuals, their understanding of industrial equipment, and careful observation to discover the cause of a problem. For example, after hearing a vibration from a machine, a mechanic must decide whether it is due to worn belts, weak motor bearings, or some other problem. Mechanics often need years of training and experience to diagnose all problems fully. They also use computerized diagnostic systems and vibration analysis techniques to help figure out the source of problems. After diagnosing a problem, they may take the equipment apart to repair or replace the necessary parts.

Increasingly, mechanics are expected to have the electrical, electronics, and computer programming skills to repair sophisticated equipment on their own. Once a repair is made, mechanics test a machine to make sure that it is running smoothly.

Industrial machinery mechanics might also do preventive maintenance. In addition to hand tools, mechanics commonly use lathes, grinders, or drill presses. Many are also required to weld.