Electric motor responsibilities are to disassemble defective equipment so that repairs can be made, using hand tools; record repairs required, parts used, and labor time; inspect and test equipment to locate damage or worn parts and diagnose malfunctions, or read work orders or schematic drawings to determine required repairs;

repair and rebuild defective mechanical parts in electric motors, generators, and related equipment, using hand tools and power tools; lubricate moving parts; measure velocity, horsepower, revolutions per minute (rpm), amperage, circuitry, and voltage of units or parts to diagnose problems, using ammeters, voltmeters, wattmeters, and other testing devices; scrape and clean units or parts, using cleaning solvents and equipment such as buffing wheels; solder, wrap, and coat wires to ensure proper insulation; read service guides to find information needed to perform repairs; adjust working parts, such as fan belts, contacts, and springs, using hand tools and gauges; inspect electrical connections, wiring, relays, charging resistance boxes, and storage batteries, following wiring diagrams; weld, braze, or solder electrical connections; reassemble repaired electric motors to specified requirements and ratings, using hand tools and electrical meters; rewire electrical systems, and repair or replace electrical accessories;

assemble electrical parts such as alternators, generators, starting devices, and switches, following schematic drawings and using hand, machine, and power tools; lift units or parts such as motors or generators, using cranes or chain hoists, or signal crane operators to lift heavy parts or subassemblies; remove and replace defective parts such as coil leads, carbon brushes, and wires, using soldering equipment; maintain stocks of parts; sharpen tools such as saws, picks, shovels, screwdrivers, and scoops, either manually or by using bench grinders and emery wheels; clean cells, cell assemblies, glassware, leads, electrical connections, and battery poles, using scrapers, steam, water, emery cloths, power grinders, or acid; reface, ream, and polish commutators and machine parts to specified tolerances, using machine tools; hammer out dents and twists in tools and equipment;

test equipment for overheating, using speed gauges and thermometers; test battery charges, and replace or recharge batteries as necessary; verify and adjust alignments and dimensions of parts, using gauges and tracing lathes; test conditions, fluid levels, and specific gravities of electrolyte cells, using voltmeters, hydrometers, and thermometers; steam-clean polishing and buffing wheels to remove abrasives and bonding materials, and spray, brush, or recoat surfaces as necessary; repair and operate battery-charging equipment; set machinery for proper performance, using computers; cut and form insulation, and insert insulation into armature, rotor, or stator slots; inspect batteries for structural defects such as dented cans, damaged carbon rods and terminals, and defective seals; drain and filter transformer oil and refill transformers with oil until coils are submerged; rewind coils on cores in slots, or make replacement coils, using coil-winding machines;

clean, rinse, and dry transformer cases, using boiling water, scrapers, solvents, hoses, and cloths; add water or acid to battery cell solutions to obtain specified concentrations; pour compounds into transformer-case terminal openings to seal out moisture; position and level battery cells, anodes, or cathodes, using hoists or leveling jacks, or signal other workers to perform positioning and leveling; seal joints with putty, mortar, and asbestos, using putty extruders and knives; bolt porcelain insulators to wood parts to assemble hot stools.