Diesel Mechanic

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.