A diesel mechanic is a professional who specializes in the repair and maintenance of diesel-powered vehicles and appliances. They work on diesel engines, which are commonly found in trucks, buses, construction equipment, agricultural machinery, and industrial generators.
Diesel mechanics may also: Perform diagnostics on engines Inspect parts and system machinery Maintain and repair nonengine components, such as brakes, electrical systems, and heating and air conditioning Test and repair diesel motors Maintain mechanical parts of trucks, buses, and other heavy vehicles such as transmissions, suspension, steering, and brakes
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