Problems with RC122 Plucky Ducky Crane at Colonie Center Mall

While servicing the platform kiddie rides at Colonie Center Mall on Saturday, April 20, 2024, I noticed that the Plucky Ducky Crane game had an out of order sign on it and the machine was saying, "Please call attendant." After resetting the machine and going into service mode to test everything, I noticed that the crane gantry was not moving forwards or backwards. I could hear the motor spinning though.

I found that there is a black plastic drive gear on the axle shaft that controls the crane gantry's forward/backwards motion that is driven by a worm gear that is attached to the forwards/backwards drive motor. This black plastic gear appears to be cracked and easily slides back and forth on the axle shaft so that it will no longer mesh with the worm gear on the motor. I have tried several times to push the gear back on the shaft so that it will mesh with the worm gear, but after a few times trying to move the crane gantry forwards and backwards, eventually that black drive gear will slide down the shaft and not mesh with the worm gear anymore.

I am not really sure what is the best way to fix this problem with the Plucky Ducky Crane game. Can that drive shaft be [reasonably] easily replaced on the crane gantry? I'm guessing that Elaut doesn't have just the replacement drive gear for this as I'm assuming it has to be pressed onto the axle shaft so that it is on there tight so it doesn't slip on the shaft like it is doing now. I hope that the entire crane gantry assembly doesn't have to be replaced on the machine to fix this issue.