Brother ML-300 Typewriter "repair pitching machine wheel" Questions

...ridges/raised slots below the center of the Daisy Wheel (viewed with the raised top tab on your left.) The B type are incompatible with your machine. 2) the typewriter has failed and needs

repair it requires the machine be hand-cycled using a hand cycle wheel which is screwed into the right hand side operational shaft. It's unlikely that an un-trained party would be successful repairing