According to people in this career, the main tasks are...
| Task | Importance |
|---|---|
| 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. | 90% |
| Inspect brake systems, steering mechanisms, wheel bearings, and other important parts to ensure that they are in proper operating condition. | 86% |
| Raise trucks, buses, and heavy parts or equipment using hydraulic jacks or hoists. | 84% |
| Adjust and reline brakes, align wheels, tighten bolts and screws, and reassemble equipment. | 84% |
| Attach test instruments to equipment, and read dials and gauges to diagnose malfunctions. | 83% |
| Perform routine maintenance such as changing oil, checking batteries, and lubricating equipment and machinery. | 83% |
| Examine and adjust protective guards, loose bolts, and specified safety devices. | 82% |
| Inspect, test, and listen to defective equipment to diagnose malfunctions, using test instruments such as handheld computers, motor analyzers, chassis charts, or pressure gauges. | 81% |
| Rewire ignition systems, lights, and instrument panels. | 81% |
| Test drive trucks and buses to diagnose malfunctions or to ensure that they are working properly. | 81% |
| Diagnose and repair vehicle heating and cooling systems. | 80% |
| Inspect, repair, and maintain automotive and mechanical equipment and machinery, such as pumps and compressors. | 80% |
| Inspect and verify dimensions and clearances of parts to ensure conformance to factory specifications. | 79% |
| Disassemble and overhaul internal combustion engines, pumps, generators, transmissions, clutches, and differential units. | 78% |
| Adjust or repair computer controlled exhaust emissions devices. | 78% |
| Rebuild gas or diesel engines. | 78% |
| Specialize in repairing and maintaining parts of the engine, such as fuel injection systems. | 77% |
| Measure vehicle emissions to determine whether they are within acceptable limits. | 77% |
| Follow green operational practices involving conservation of water or energy or reduction of solid waste. | 76% |
| Recondition and replace parts, pistons, bearings, gears, and valves. | 76% |
| Install or repair accessories. | 75% |
| Repair or adjust seats, doors, or windows. | 74% |
| Dismount, mount, and repair or replace tires. | 73% |
| Align front ends and suspension systems. | 73% |
| Maintain or repair vehicles with alternative fuel systems, including biodiesel, hybrid, or compressed natural gas vehicles. | 68% |
| Operate valve-grinding machines to grind and reset valves. | 62% |
