“Mechanic” means an employee whose primary function is to put automobiles, trailers, trucks, or farm machinery in working order by making necessary repairs or adjustments. The following employees are not mechanics: An employee whose primary duty is to wash, clean, polish, lubricate packing wheel bearings, change oil or oil filters, change tires, paint, perform carpentry, dispatch, or install or repair seat covers; An employee whose primary duty is to record a vehicle's condition or to write a report detailing necessary parts and mechanical work.