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Test battery charges, and replace or recharge batteries as necessary.
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Test equipment for overheating, using speed gauges and thermometers.
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Lubricate moving parts.
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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.
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Verify and adjust alignments and dimensions of parts, using gauges and tracing lathes.
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Lift units or parts such as motors or generators, using cranes or chain hoists, or signal crane operators to lift heavy parts or subassemblies.
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Inspect electrical connections, wiring, relays, charging resistance boxes, and storage batteries, following wiring diagrams.
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Rewind coils on cores in slots, or make replacement coils, using coil-winding machines.
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Weld, braze, or solder electrical connections.
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Seal joints with putty, mortar, and asbestos, using putty extruders and knives.
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Clean cells, cell assemblies, glassware, leads, electrical connections, and battery poles, using scrapers, steam, water, emery cloths, power grinders, or acid.
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Repair and operate battery-charging equipment.
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Inspect and test equipment to locate damage or worn parts and diagnose malfunctions, or read work orders or schematic drawings to determine required repairs.
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Repair and rebuild defective mechanical parts in electric motors, generators, and related equipment, using hand tools and power tools.
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Adjust working parts, such as fan belts, contacts, and springs, using hand tools and gauges.
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Scrape and clean units or parts, using cleaning solvents and equipment such as buffing wheels.
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Solder, wrap, and coat wires to ensure proper insulation.
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Reface, ream, and polish commutators and machine parts to specified tolerances, using machine tools.
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Disassemble defective equipment so that repairs can be made, using hand tools.
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Set machinery for proper performance, using computers.
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Steam-clean polishing and buffing wheels to remove abrasives and bonding materials, and spray, brush, or recoat surfaces as necessary.
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Hammer out dents and twists in tools and equipment.
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Assemble electrical parts such as alternators, generators, starting devices, and switches, following schematic drawings and using hand, machine, and power tools.
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Cut and form insulation, and insert insulation into armature, rotor, or stator slots.
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Sharpen tools such as saws, picks, shovels, screwdrivers, and scoops, either manually or by using bench grinders and emery wheels.
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Reassemble repaired electric motors to specified requirements and ratings, using hand tools and electrical meters.
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Rewire electrical systems, and repair or replace electrical accessories.
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Maintain stocks of parts.
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Record repairs required, parts used, and labor time.
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Read service guides to find information needed to perform repairs.
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Remove and replace defective parts such as coil leads, carbon brushes, and wires, using soldering equipment.