Got a good apron for the model A southbend lathe
The first apron I bought off of ebay was a piece of crap. It was totally worn out, and the selector handle was broken in shipping. After completely cleaning and stripping it down I ended up returning it to the the jackass I bought it from, and getting my money back.
Another one showed up soon enough, and this time I asked some important questions and landed a good deal.
So... back to the stripping tank!
The apron was a little rusty, and had apparently been painted with latex house paint (!). But other then that, it was in great shape. Well at least compared to the first one.
The front looks pretty rusty.
The back looks much better. I think that despite appearances it is going to clean up well.
First I pop out the taper pin on the handwheel (checking carefully to make sure I am hitting the big end).
Next step is to flip the apron over and knock out the pin holding the key in the leadscrew worm.
Then the retaining nut can be unscrewed. I did find that there was a slight burr on the threads around the pin hole. It took a bit of force to get the retaining nut to turn but once it started going it was fine.
Then you pull the clutch pieces out by loosening the LEFT HAND THREAD screw in the start handle. LEFT. HAND. THREAD. This is why so many aprons on ebay are missing the screw. It does not take much torque turning the wrong way to break it off.
Once the clutch shaft is removed (I don't have photos of that but it basically just falls out) the worm gear is loose and you can turn the worm and the gear to carefully remove the worm. It is a bit tricky, but as long as you keep an eye on the end of the worm threads you can wiggle it out.
Once the worm is out you can remove the worm gear by just pulling it out. Then the other gears come out. Remember to remove the retaining clip on the the cross feed drive gear.
If you want to remove all the shafts (as I did) you need to find the various set screws that hold them in place. this one is on the "top" edge of the apron and locks the short shaft holding the cross feed drive gear. In my case someone had pounded on the shaft with a hammer. No doubt because they did not see this set screw. I will need to clean the shaft up on the lathe. When everything else is done of course.
This one hold in the shaft for the gear that drives the handwheel pinion against the rack when using the longitudinal power feed.
On the bottom of the apron is a set crew that presses in a spring and steel pin to keep the half nut handle from falling out. Make sure you remove everything so that the pieces don't fall out later and get lost.
Here is the complete set.
That is pretty much it for the tricky parts. Here is everything laid out and ready for clean up and inspection.
Next up is the quick change gear box!