I got talked into doing this restore. I had it all working before I disassembled. One item I did not test was the "out of balls for jackpot" and the balls back up in a catch waiting for refill. The machine is completely disassembled so I would like to fix the part IF it needs it prior to reassembly. I have a photo below with a red rectangle around a wire with a ring on the end. The plastic it is resting on is chipped and look like a little tab may have protruded up and into the ring. Can some tell me if I need to attach this metal wire to the plastic or will is work as is? Of course I'll know after reassembly, but then I'd have to take the part off again. Thanks in advance

broken piece.jpg