Electric Motor, Power Tool, and Related Repairers
Tasks
Core Tasks Include:
- 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.
- Record repairs required, parts used, and labor time.
- Reassemble repaired electric motors to specified requirements and ratings, using hand tools and electrical meters.
- Repair and rebuild defective mechanical parts in electric motors, generators, and related equipment, using hand tools and power tools.
- Inspect electrical connections, wiring, relays, charging resistance boxes, and storage batteries, following wiring diagrams.
- Read service guides to find information needed to perform repairs.
- Inspect and test equipment to locate damage or worn parts and diagnose malfunctions, or read work orders or schematic drawings to determine required repairs.
- Lubricate moving parts.
- Disassemble defective equipment so that repairs can be made, using hand 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.
- Weld, braze, or solder electrical connections.
- Adjust working parts, such as fan belts, contacts, and springs, using hand tools and gauges.
- Scrape and clean units or parts, using cleaning solvents and equipment such as buffing wheels.
Supplemental Tasks Include:
- Maintain stocks of parts.
- Rewire electrical systems, and repair or replace electrical accessories.
- Solder, wrap, and coat wires to ensure proper insulation.
- Assemble electrical parts such as alternators, generators, starting devices, and switches, following schematic drawings and using hand, machine, and power tools.
- Remove and replace defective parts such as coil leads, carbon brushes, and wires, using soldering equipment.
- Reface, ream, and polish commutators and machine parts to specified tolerances, using machine tools.
- Clean cells, cell assemblies, glassware, leads, electrical connections, and battery poles, using scrapers, steam, water, emery cloths, power grinders, or acid.
- Rewind coils on cores in slots, or make replacement coils, using coil-winding machines.
- Cut and form insulation, and insert insulation into armature, rotor, or stator slots.
- Set machinery for proper performance, using computers.
- Drain and filter transformer oil and refill transformers with oil until coils are submerged.
- Position and level battery cells, anodes, or cathodes, using hoists or leveling jacks, or signal other workers to perform positioning and leveling.
- Verify and adjust alignments and dimensions of parts, using gauges and tracing lathes.
- Test equipment for overheating, using speed gauges and thermometers.
- Bolt porcelain insulators to wood parts to assemble hot stools.
- Pour compounds into transformer-case terminal openings to seal out moisture.
- Test conditions, fluid levels, and specific gravities of electrolyte cells, using voltmeters, hydrometers, and thermometers.
- Clean, rinse, and dry transformer cases, using boiling water, scrapers, solvents, hoses, and cloths.
- Inspect batteries for structural defects such as dented cans, damaged carbon rods and terminals, and defective seals.
- Steam-clean polishing and buffing wheels to remove abrasives and bonding materials, and spray, brush, or recoat surfaces as necessary.
- Test battery charges, and replace or recharge batteries as necessary.
- Repair and operate battery-charging equipment.
- Add water or acid to battery cell solutions to obtain specified concentrations.
- Sharpen tools such as saws, picks, shovels, screwdrivers, and scoops, either manually or by using bench grinders and emery wheels.
- Seal joints with putty, mortar, and asbestos, using putty extruders and knives.
- Hammer out dents and twists in tools and equipment.
The data sources for the information displayed here include: O*NET™. (Using onet28)
