Attach test instruments to equipment, and read dials and gauges to
diagnose malfunctions.
Adjust or repair computer controlled exhaust emissions devices.
Diagnose and repair vehicle heating and cooling systems.
Perform routine maintenance such as changing oil, checking batteries, and
lubricating equipment and machinery.
Adjust and reline brakes, align wheels, tighten bolts and screws, and
reassemble equipment.
Recondition and replace parts, pistons, bearings, gears, and valves.
Align front ends and suspension systems.
Test drive trucks and buses to diagnose malfunctions or to ensure that they are
working properly.
Disassemble and overhaul internal combustion engines, pumps,
generators, transmissions, clutches, and differential units.
Inspect, test, and listen to defective equipment to diagnose malfunctions, using
test instruments such as handheld computers, motor analyzers, chassis charts,
and pressure gauges.
Inspect and verify dimensions and clearances of parts to ensure
conformance to factory specifications.
Rebuild gas or diesel engines.
Specialize in repairing and maintaining parts of the engine, such as fuel
injection systems.
Raise trucks, buses, and heavy parts or equipment using hydraulic jacks or hoists.
Measure vehicle emissions to determine whether they are within
acceptable limits.
Maintain or repair vehicles with alternative fuel systems, including
biodiesel, hybrid, or compressed natural gas vehicles.
Examine and adjust protective guards, loose bolts, and specified safety
devices.
Install or repair accessories.
Inspect brake systems, steering mechanisms, wheel bearings, and other
important parts to ensure that they are in proper operating condition.
Repair or adjust seats, doors, or windows.
Rewire ignition systems, lights, and instrument panels.
Operate valve-grinding machines to grind and reset valves.
Inspect, repair, and maintain automotive and mechanical equipment and
machinery such as pumps and compressors.