5-18 Problem Cause Remedy "Motoring" effect. The steering wheel can turn on its own. Leaf springs are stuck or broken and have therefore reduced spring force. Inner and outer spools pinch, possibly due to dirt. Return pressure in connection with the reaction between differential cylinder and steering unit too high. Oil is needed in the tank. Steering cylinder worn. Gear wheel set worn. Spacer across cardan shaft forgotten. Replace leaf springs. Clean steering unit or contact the nearest service shop. Reduce return pressure. Fill with clean oil and bleed the system. Replace or repair cylinder. Replace gear wheel set. Install spacer.