I have a Kenmore ultra washer and the water spinner that hooks on the upper chamber, where you put the dishes fell off. I tried to put it back on but was unable to. Is there a tool I need or do I need to get a repair man? Please let me know. Thank You

I have a Kenmore Ultrawash d/w that's about 5 or 6 yrs old and if yours is similar to mine, I see two screws, one you can see from above looking down on the upper tray. It holds the plastic clip that is connected to the upper slid out tray and takes a phillip head screwdrive. The bottom screw at the very bottom also takes a phillips head screwdriver and it looks like unscrewing this screw takes the spray arm off and apart to include any washers. Hope this helps.