Repair and replace tires.

Install, service, or repair automatic door mechanisms and hydraulic doors. Includes garage door mechanics.

Install, repair, and maintain mechanical regulating and controlling devices, such as electric meters, gas regulators, thermostats, safety and flow valves, and other mechanical governors.

Install or repair heating, central air conditioning, HVAC, or refrigeration systems, including oil burners, hot-air furnaces, and heating stoves.

Repair, adjust, or install all types of electric or gas household appliances, such as refrigerators, washers, dryers, and ovens.

Repair, install, adjust, or maintain industrial production and processing machinery or refinery and pipeline distribution systems. May also install, dismantle, or move machinery and heavy equipment according to plans.

Lubricate machinery, change parts, or perform other routine machinery maintenance.

Install, dismantle, or move machinery and heavy equipment according to layout plans, blueprints, or other drawings.

Build or repair equipment such as furnaces, kilns, cupolas, boilers, converters, ladles, soaking pits, and ovens, using refractory materials.

Install or repair cables or wires used in electrical power or distribution systems. May erect poles and light or heavy duty transmission towers.