I was curious if you had a code definition or list for raymonds, I've got a code A4 on a 152-opc30tt stacker. Saw your name was "eazi-tek" so figured you might know. Just bought this unit and it was supposed to be "completely refurbed unit". Instantly saw elec.tape on the rotary encoder for the drive steering unit keeping it in one place. Knew that wasn't good. Just can't get a code definition anywhere. Any help would be appreciated.