I bought a parts book similar to what my dealer had from Ebay.
I was thinking my Hoe was a 221 proto-type which was replaced by the 222.
My hoe has the extended dipper, a model 200 loader and I have the top like the model 30 backhoes.
I think 222 parts will fit my hoe except for some cylinder parts. (I remeber my dealer said my cylinders were different but everything else was the same or could interchange)( I hope)
I decided to have the cylinder repaired