Quill Pinion Shaft Question on Old Greenie

[JPG40504]

There is not anything wrong with your headstock. If you have been tracking Nick Engler's comments about the Power Pro headstock, the early greenie headstocks (no access hole) will not have an Power Pro upgrade kit available due to the thicker and rougher casting method used. The later headstocks with the access hole under the Logo cover was made using a different casting method that is thinner and is a more precision casting.

I add an access hole under the Logo cover and attach a bracket to the back of the logo cover. I find that I like this earlier headstock as it reduces internal sounds and seems to have less vibration than later headstocks. I do other modifications to this headstock to match the latest headstock setup.


I assume you have a 'sand cast' headstock! Should have realized the lack of the access hole indicated this.:o

If the control sheave shaft does NOT have an oil hole, add one! It is difficult enough to oil it with NO access hole either!

[billmayo]

I have a question for the rebuilders. On my recent acquisition (1954 freebie greenie Mark 5), the original headstock was in pieces. When I reinstalled the quill pinion shaft, I noticed the sleeve on the quill lock side stuck out about 1/4" when it was up against the domed washer. On both of my
1960's machines, the sleeve does not stick out. The individual parts seem to match up with the newer units, so the only thing I can think of is that the headstock quill clamp casting might be thicker. I see no reason it won't work like this but was wondering about it. Any comments appreciated. Thanks, John McCrossen

Shopsmith used a washer that was crimped/stamped (added strength) that was used in the sand cast headstocks. It is about 1/3 the thickness of the domed washer used in later headstocks.

Many small production changes since 1954 were made to Shopsmith equipment that are not documented but improved the reliability and performance. Most times the older and newer improvement are interchangeable.