Assist with the replacement of worn, defective, or damaged equipment, using appropriate equipment and tools such as multimeters, conduit benders and other tools common to the trade; interpret blueprints, sketches, and drawings to support the installation and troubleshooting of electrical equipment. Support the diagnosis of electrical or mechanical problems through the use of appropriate equipment and tools such as voltmeters, hand tools, hoists, pressure gauges, drills, grinding wheels, and other tools common to each trade.