Exhaust System Defects. A broken exhaust system can let poison fumes into the cab or sleeper berth. Look for Loose, broken, or missing exhaust pipes, mufflers, tailpipes, or vertical stacks. Loose, broken, or missing mounting brackets, clamps, bolts, or nuts. Exhaust system parts rubbing against fuel system parts, tires, or other moving parts of vehicle. Exhaust system parts that are leaking. Emergency Equipment. Vehicles must be equipped with emergency equipment. Look for Fire extinguishers. Spare electrical fuses (unless equipped with circuit breakers. Warning devices for parked vehicles (for example, three reflective warning triangles or 6 fusees or 3 liquid burning flares. Cargo (Trucks.You must make sure the truck is not overloaded and the cargo is balanced and secured before each trip. If the cargo contains hazardous materials, you must inspect for proper papers and placarding.