Grain bins should never be entered when grain is being loaded or unloaded. Don't take the chance that the equipment may start or be started while you are working on it. If you are working with a blower, make sure the flywheel has stopped before performing any service. Shut off, lock, and tag the power to conveying equipment before servicing or unclogging it. Don't take the chance that the equipment may start or be started while you are working on it.
Many conveyors are PTO-driven.
Although it is common sense to avoid contact with a driveline, injuries still occur when workers step across or reach across or under a PTO shaft or driveline. Even though you may take steps to avoid PTO contact, all shafts and drivelines should be shielded to help prevent injury if something should go wrong. The irregular shapes of the shafts and flexible joints entangle loose clothing and hair very easily. Shields that were designed to rotate separately from the shaft inside should do so easily. This condition should only be checked, of course, with the shaft stopped.