GE had several styles for the impeller protector in the redesigned machines with the bow tie impeller. The first consisted of two rods that basically divided the area into four quadrants with two or three concentric rings overlaying the perpendicular rods. The dishwasher shown has the second cover for the impeller, the medium vinyl coated grid which, I believe, was attached at the corners to the lower rack. At first they were not as worried about the stainless steel impeller being damaged by a falling piece of silverware which would usually break the Bakelite impellers. The last design was a grid of stainless steel hardware cloth with the much finer squares. It was held in place by two S hooks mounted on the Calrod element. When those little plastic disks from baby bottle covers would fly loose during the cycle, they made a loud scraping noise as the two plumes of water from the impeller would drag them across the underside of hardware cloth type cover. While the impeller was turning, the water level was lower than the edges of the grid, so the little disks would slip under it. The easiest way to retrieve them was to stop the machine while the water level was even with the grid and then use fingers, if they would fit, or the handle of a spoon or fork to move it to the edge and then push it down to get it past the turned under edge of the grid where the buoyancy of the plastic would let it bob to the surface.
What the picture of the top rack does not show is the little vinyl coated fence added like an afterthought to the corner of the top rack under the detergent dispenser. It was not squared with the pins so it never looked quite right. It prevents anything from being loaded close enough to the dispenser to block its fall. At the end of the cycle, it was immediately apparent if the cover had not been closed before you even looked at the cup because the dishes would not be clean. One morning, I noticed that the baby bottles were flecked with bits of food. Immediately my father said that it was not a bottle washer and it could not be expected to clean them; never mind that we had been washing them in there since my sister was born. Then a glance showed the little cup with the detergent sitting under a layer of water (my mother had started the dishwasher the night before). The next detergent cup had a hinged cover and pivoted over on the timer shaft but it had the same fence. The KitchenAid portables with the pivoting dispenser on the back wall of the tank have a similar blocked area in the fixed rear portion of the upper rack.
Remember to use those 5 rectangular holes at the end of the slverware basket for cooking spoons and spatulas inserted handles down.
Our owner's manual had very detailed instructions for removing stains from dishes and the Plastisol tank. After the machine was loaded with dishes and glasses, but no metal, a measuring cup with a cup of liquid chlorine bleach was placed on the grid over the center of the impeller and the cycle started. The water circulation caused the cup to overflow adding a continuous bleaching solution to the two power pre-rinses and the wash. A similar process with vinegar, but without detergent, was used to remove hard water film & deposits.
