My Craftsman lathe would not change speeds so I had to stop and fix it today and I’d thought I’d share the process in case someone else has this problem. This is my second Craftsman 15×38 wood lathe and they both have had this problem. This time the the lathe would not slow down. When I tried to crank it down, it just lost drive power. It has a Reeves Drive in it with an upper and lower sheave. The lower one is opened and closed with a crank and lever inside and the top sheave has a big spring behind it and it supposed to respond to the lower one by opening when the bottom one is closed and vice versa. Well the top sheave was frozen on the shaft and would not move so the belt just came loose on both of them.
The first time I ever did this, I managed to remove the c-clip holding the spring tension without compressing the spring. I thought I could hold it and let it out slowly. WRONG.. It shot across the barn and I was lucky to find all the pieces!!
So I started by making this puller with long piece of threaded rod, some nuts and a cut away cup so I could get at the C clip.
I goes through the spindle and compresses the spring.
After i got the C clip off I tried to get the sheave to slide back even with a mallet.
I would not move so I tapped two holes in the end of it and used the puller I made for the other lathe for the same condition.
Then I was able to pull it off and sand down the inside and the shaft until it moved easily. I put it together dry because I learned from the last one that lube gums up and freezes it more quickly.
Now it runs high and low like it is supposed to.
And they lived happily ever after!!!!!!!!!!!!!!!.................Cheers, Jim
-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!