Don't take the chance of losing control by shifting to neutral or leaving the tractor or harvester in a high gear. A good rule of thumb is to go downhill in the same gear, or a lower gear, as you would use to go uphill. Consider having an escort vehicle follow to help alert motorists. This is especially important if left-hand turns have to be made. Since most wagons don't have turn signals, consider using an escort vehicle to help alert other drivers.
Collisions occur when machinery starting a left turn is hit by a car passing from behind.
Wagon Safety Loaded grain wagons will often weigh more than the tractor or pickup truck pulling them. If a heavy wagon has a tire or running gear failure, you may not be able to control the wagon with your truck or tractor, resulting in a collision or overturn. Proper adjustment and maintenance of the wagon's steering components will reduce fishtailing or weaving and the chance of component failure. Never exceed the maximum load recommended for the wagon's running gear or the tires. Use the proper tires for the running gear.