International 440 wire twister out of time

[MustangOk]

I have an International 440 square baler that the outer wire twister has gotten out of time. The flat edge of the twister is not riding against the flat edge of the cam wheel. When it cycles to cut wire and start over the twister spins twisting the wire but stops pointing the wrong direction and the wire breaks leaving twisted wire on the tooth. My question is, I see a roll pin in the gear that twist, but is there an easy way of getting the flat edge of the gear that twist back up against the cams flat surface or do I have back the cam off to turn the twister to its correct position? Any help, advice or info is appreciated.