If we look under the conveyor bed, we will find another set of changes. This area is called the CONVEYOR RETURN because the conveyor is returning for another load of ore. The idlers here are called RETURN IDLERS. The problems that they face are dirt and belt wander. The belt tracking will be taken care of by RETURN TRAINING IDLERS pivoted like the troughing idlers. The dirt problem is taken care of by a design change. Because the idlers are in contact with the dirty face of the conveyor belt a build of mud around the idler may cause problems with belt wander. To limit this build up, the surface area of the idler that comes into contact with the conveyor face is kept to a minimum. This is done by raising just those portions of the idler that are absolutely necessary.