Pre-trip inspection includes checking fluid levels of engine oil, antifreeze, tire pressure, brakes and other driver operated controls such as hydraulic systems, line systems, and hydraulics. For example, the following items are part of the job task requirements: rubber hose, map book, delivery tickets, remote for concrete pump, empty three-gallon pails at a weight of approximately 5 pounds and thirty pounds full and the frequency demand is eleven to thirty-three percent of the time.