keywords: truck, trailer, trailing, auto, automotive, automobile, tech, technician, mech, mechanic, delivery, van, welder, welding, driver, CDL, heavy-duty, heavy duty, duty, journey, journeyman, entry, skill, skills, skilled, Napa, Service, Sales, mobile, growth, career, diesel, engine, motor, brakes, diagnostic, diagnosing, DOT, electronic, scanner, electronics, gas, gasoline, propane, hydraulic, PM, preventive maintenance, oil, semi, semi-trailer, tractor, pickup, benefits, medical, dental, vacation, vision, retirement, tool, tools, shop. • Perform minor repairs on semi-trailers and truck cargo boxes including roll up and swing door repairs, tire replacement, brake repairs, suspension repairs, electrical systems and repair body panels, roofs, and frame rails.