Here is the situation. My buddy has a New Idea Corn Picker. The only info we know about it is #8 lot #p-133-1 Ser# 47281 That is the only thing on the Tag. He needs to remove the drive gear that runs the chains. Problem is, we have No idea how to do this. Any info on this situation would be greatly appreciated. Again, i know this is very little info. Just a starting oint would be nice. He is talking about taking the rollers off. I do not know if that is nessesary or ever possible.