The door on the Jenn-Aire diswasher drops to the floor. The soft door drop is not working. The wheel hub came off the bolt. The cable is frayed but the wheel hub will not stay on the bolt. What retains the wheel hub to the bolt? The right side of the door is fine, spring and connector are intact. The left side spring, wheel and cable were on the floor the bolt was still connected when we opened the dishwasher. Please advise how to repair.