||Aircraft Mechanics and Service Technicians
- Examine and inspect aircraft components, including landing gear, hydraulic systems, and deicers to locate cracks, breaks, leaks, or other problems.
- Conduct routine and special inspections as required by regulations.
- Measure parts for wear, using precision instruments.
- Replace or repair worn, defective, or damaged components, using hand tools, gauges, and testing equipment.
- Examine engines through specially designed openings while working from ladders or scaffolds, or use hoists or lifts to remove the entire engine from an aircraft.
- Remove, inspect, repair, and install in-flight refueling stores and external fuel tanks.
||Automotive Master Mechanics
- Repair, reline, replace, and adjust brakes.
- Follow checklists to ensure all important parts are examined, including belts, hoses, steering systems, spark plugs, brake and fuel systems, wheel bearings, and other potentially troublesome areas.
- Overhaul or replace carburetors, blowers, generators, distributors, starters, and pumps.
- Repair or replace parts such as pistons, rods, gears, valves, and bearings.
- Repair or replace shock absorbers.
||Bus and Truck Mechanics and Diesel Engine Specialists
- Inspect brake systems, steering mechanisms, wheel bearings, and other important parts to ensure that they are in proper operating condition.
- Inspect and verify dimensions and clearances of parts to ensure conformance to factory specifications.
- Inspect, test, and listen to defective equipment to diagnose malfunctions, using test instruments such as handheld computers, motor analyzers, chassis charts, or pressure gauges.
- Recondition and replace parts, pistons, bearings, gears, and valves.
- Inspect, repair, and maintain automotive and mechanical equipment and machinery, such as pumps and compressors.
||Automotive Specialty Technicians
- Repair or replace defective ball joint suspensions, brake shoes, or wheel bearings.
- Repair, replace, or adjust defective fuel injectors, carburetor parts, and gasoline filters.
- Repair or replace automobile leaf springs.
- Replace defective mufflers and tailpipes.
- Replace defective parts, using hand tools, arbor presses, flexible power presses, or power tools.
- Repair or replace other parts, such as headlights, horns, handlebar controls, gasoline or oil tanks, starters, or mufflers.
- Dismantle engines and repair or replace defective parts, such as magnetos, carburetors, or generators.
- Remove cylinder heads and grind valves to scrape off carbon and replace defective valves, pistons, cylinders, or rings, using hand and power tools.