Removing a stuck chuck

Tried heating it up today.
Still stuck.
Have it soaking again.
 
I prefer a 50/50 mix of acetone and automatic transmission fluid (ATF) as a penetrating oil.
Add a little every day for a week or so, and then try again.

(....and if you try any heat, be careful as the acetone burns!)

-brino
50/50 Kerosene and ATF works better as with Acetone the Acetone evaporates too fast. Sometimes I add 20% Isopropyl Alcohol to the above mix for fast penetration but it has to be kept in an airtight container.
 
Liquid wrench has always worked for me- but I have no affiliation with them
I also found it makes a good fluid for drilling and tapping aluminum
Mark
 
Looking at it again today, I have to mount it better.
The head is off the bed, so it just moves around to much.
It's going to come off, one way or another.
 
Worked on it again today.
Tried the action wench, but just can't hold it firm enough. Head not attached to bed.
Decided to remove the chuck. I did mark it to put it back in the same place.
It made it so much easier to work with.
I made an angle flat head to remove the screws holding the front bearing in.
Hoping there was enough room for it to work.
It did and I got the whole shaft out.
Now I can hold the shaft in the press, put back the chuck, and hopefully remove the whole thing.
Bearing feels OK, but it doesn't look that great. I may replace it.

SDC12081.JPG

SDC12083.JPG

SDC12084.JPG

SDC12086.JPG

SDC12087.JPG
 
Worked on it again today.
Tried the action wench, but just can't hold it firm enough. Head not attached to bed.
Decided to remove the chuck. I did mark it to put it back in the same place.
It made it so much easier to work with.
I made an angle flat head to remove the screws holding the front bearing in.
Hoping there was enough room for it to work.
It did and I got the whole shaft out.
Now I can hold the shaft in the press, put back the chuck, and hopefully remove the whole thing.
Bearing feels OK, but it doesn't look that great. I may replace it.
If that is the original New Departure bearing, it would behoove you to try to save it. I have heard of people hanging a lot of weight on a bar held in the chuck and lubricating it. Come back the next day and the weight is on the ground. Never tried it but it sounds like it would work.
 
It is a New Departure bearing.
It feels good, but looks really dirty. Lots of brown staining around it.
Once I get the plate off I can see the bearing better.
Going to cut two "V" blocks to hold the shaft in the press.
Reinstall the chuck.
I'll try the "hanging a weight" trick and see how it works.
It will come off. I will not be defeated by it.
 
The 927 should have a 2 & 1/4-8 threaded spindle, I've heard of, but never seen, any modified with a locking screw. I'm thinking it's just stuck, not unusual if it's been on there for 10 years. As mentioned above, you may be able to remove the front portion and turn down the back plate. Replacing the back plate is no big deal, just another cost. Get used to it.
 
If you already have the chuck off, I would just split the back plate and be done with it. Backplates are reasonably cheap, if you mess around with it long enough you may break or damage something more expensive.
 
Back
Top