Diesel Service Technicians and Mechanics

Diesel Service Technicians and Mechanics typically perform the following tasks: • Use handtools, such as screwdrivers, pliers, wrenches, pressure gauges, or precision instruments, as well as power tools, such as pneumatic wrenches, lathes, welding equipment, or jacks and hoists. • Inspect brake systems, steering mechanisms, wheel bearings, and other important parts to ensure that they are in proper operating condition. • Raise trucks, buses, and heavy parts or equipment using hydraulic jacks or hoists. • Adjust and reline brakes, align wheels, tighten bolts and screws, and reassemble equipment. • Attach test instruments to equipment, and read dials and gauges to diagnose malfunctions. • Perform routine maintenance such as changing oil, checking batteries, and lubricating equipment and machinery. • Examine and adjust protective guards, loose bolts, and specified safety devices. • Inspect, test, and listen to defective equipment to diagnose malfunctions, using test instruments such as handheld computers, motor analyzers, chassis charts, or pressure gauges. • Rewire ignition systems, lights, and instrument panels. • Test drive trucks and buses to diagnose malfunctions or to ensure that they are working properly. • Diagnose and repair vehicle heating and cooling systems. • Inspect, repair, and maintain automotive and mechanical equipment and machinery, such as pumps and compressors. • Inspect and verify dimensions and clearances of parts to ensure conformance to factory specifications. • Disassemble and overhaul internal combustion engines, pumps, generators, transmissions, clutches, and differential units. • Adjust or repair computer controlled exhaust emissions devices. • Rebuild gas or diesel engines. • Specialize in repairing and maintaining parts of the engine, such as fuel injection systems. • Recondition and replace parts, pistons, bearings, gears, and valves. • Install or repair accessories. • Repair or adjust seats, doors, or windows.