Our garbage disposal jams at least three or four times a month...partially because my wife tries to overextend it, and partially because it sucks. So last time, I ask the maintance man to show me how to do fix it so they wouldn't have to come so often. He refused, citing some legal ramifications. So I told him no thanks, and that I'd just figure it out myself.
So, I did.
1/4” Allen wrench (hex key)