Hello. My far right slot wheel seems loose on the motor shaft as it spins past the time it should have stopped and also spins in place when it starts up. I think it needs some tightening. Does anyone have any suggestions to keep the slot reel tight on the motor shaft so it starts and stops correctly when the motor starts and stops? Also, what kind of tool is need to loosen and tighten the screw that secures the reel to the shaft? I can't find what to use to loosen and tighten it. Thanks for the help!!

Thanks for the info. Either way, I need to get that screw out. It is hollow and looks threaded on the inside. What tool do I use to loosen that screw that tightens the reel on the motor shaft? Thanks!!!!