jabberwoki
Cast Iron
- Joined
- May 15, 2009
- Location
- TACOMA
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That helps a lot . I got the 4 jaw apart so that's getting cleaned.
I`ll prolly just soak the 3 jaw in gas and clean it up that way.a
Don`t plan on using it as I intend to start off using the 4 jaw and learn that way.
I`ll see how brave I feel once it`s clean.
There are 3 jaws split differently - on those the pinions have to come out first
I am having the same problem with a 3 jaw Pratt chuck. I have tried mallet blows on holding bolts. no luck. I pressed it in a press and moved the backing plates approx 1/16inch then it does not move. I am wondering about the pinions- they are still in. I removed the set screws but the pinions do not come out. It looks like there is a small pin in the hole that the set screw pushed on. Not sure how i would get those out. Anyone have experience with taking apart a pratt 3 jaw chucks (from a DSG. thanks Mumf
thanks Tyrone. I just spent 4 hours getting one out. It was a small cap- disk 1/4 diam and about 1/8 long. The set screw set on this. There are 3 of them on the back side just besides the pinions. The only thing i can think of is that they retain the pinions, stop them coming out. Not sure, since i still cannot get the pinion out. As John O said, i think the 3 pinions have to come out before it can be split. My wife is away-with cell phone (camera) i will get soe pictures during the week.
thanks Mumf
Here are a couple of photos. The firsy shows the small hole close to being in line with the pinion. The secone show the set screww and small cap. Th pinion would still not come out. Not how they are removed, any help appreciated.
tks MumfView attachment 297880View attachment 297881
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