I just bought a Bolens 1220 model 193-01 that came with a 22" tiller model 18610. This is a round back tiller that from my research was produced in the early/mid 1960's. On the attachment interchangeability chart I have it indicates this is a "Not Recommended" combination. The seller said he used them together.
Can anyone provide input as to why this is a "Not Recommended" combination?