Knowledge You Can Build On — Est. 1998
locking collar for PM 3530a
dick hines
well it finely happened. The locking collar on my 2530 in now in 3 pieces. And guess what it's available anymore. !$@%_()*)_)_*)_ The collar for the 2530B will not fit. I have checked some parts on line but so far I am coming up with a BIG 0.
The tech guy said to find a collar and grind a flat spot on it. Guess I will have to go to the John Deere shop.
Life sucks when you and your tools get old.
Re: locking collar for PM 3530a
John C Lucas
We'll that's a bummer. Can't remember.when the 3520 A game out. I've had mine about 12 or 13 years. I have a lathe/mill combo machine and could make one but it's down right now and I need to fix it first.
Re: locking collar for PM 3530a
Stuart Johnson
Check here:
http://www.ereplacementparts.com/powermatic-3520a-wood-turning-lathe-parts-c-32549_32637_173279.html
Re: nope, discontinued... sorry
What's a locking collar?
Re: locking collar for PM 3530a
Clifton C
Well, Dick, if you find something that works, buy two. Mine broke a few years ago and when I found someone who thought they could make me a new one, I couldn't find the pieces. I've been using a strap wrench, but it is most inconvenient. I think the fix might be to disconnect the power cord and reattach it to an American Beauty...
c
You refer to...
Brian Roberts
a 3530a....a 2530.....and a 2530B
So....what model do you have?
Re: You refer to...
john lucas
As far as I know there are only 3520's not 30's. There is the new shortbed version. They put the locking ring on the left of the spindle on the 3520B which is why it won't work on the A. There must be some dimension change. The collar is cast which is a big mistake in my opinion although there are an awful lot of machines out there and you don't here of this problem a huge amount. Machining one out of steel, possibly in 2 parts would make them very easy to install and they would probably last a long time. If you machined them in one part and pulled the headstock apart to repair they would last a lifetime.
Re: You refer to...
dick hines
I fat fingered the key board. It should be 3520A. I only use two fingers and sometimes I can't control them 
Re: What's a locking collar?
Doug Wolf
Dick, I think this is what he's looking for. I think it's what the plunger goes into to hold the shaft when changing chucks, etc.
Re: What are the exact dimensions?
Dave Paine
An interesting part.
I may be willing to make one or two if I have a piece of stock of sufficient diameter. I have to know the exact dimensions to check my limited steel stock. I need measurements from ideally a dial caliper.
The last time I asked for measurements from a friend, the part did not fit. When I mentioned I made it to the exact dimensions he stated, he then advised he eyeballed the diameter and did not measure. Doh!
I will need my machinist friend to mill the two outer flats. I should be able to broach the inner keyway on the metal lathe.
I have several projects in various stages of completion and others in the queue, so you will not have to be in a hurry for the piece.
Did you call toolpartsdirect
LGuthrie
they show one on their website #3097007 $15.11 - although that doesn't always mean anything.
http://www.toolpartsdirect.com/powermatic-3520a-20-woodturning-lathe.html
Re: Did you call toolpartsdirect
Clifton C
Yep, they show it...Out of stock...I'm sure there is one sitting on a shelf somewhere, maybe I'll see it while watching American Pickers...
Well,
LGuthrie
I said that doesn't always mean anything.
Re: Did you call toolpartsdirect
dick hines
Clifton, I have a deal for you. I found a guy not far from me that can make the locking collars. He is going to make a couple for me. If you want one you are welcome to it. I did not talk money but I miss having one so much I would pay more the one that PM makes.
He is going to use brass. They will look better than the pot metal ones
Re: Did you call toolpartsdirect
john lucas
Dick I would be leary of Brass. When I look at the wear patterns there are dents in the top edge of each of the 2 locking locations. I would think Brass would be soft enough these would wear a lot worse. I would say Steel would be my choice but then that would rust over time. Might want to ask the Herd here and maybe a more knowledgeable person will reply. I realize there are different types of Brass and some are harder than others.
Re: Agree brass is too soft
Dave Paine
As John stated, brass would not be a good material for the locking collar. It will be too easily swaged by the pin when used to lock the shaft.
Steel is harder, even mild steel. Ideally the collar would be machined from a type of steel which can be hardened. The time to harden then temper the part is trivial.
Leaf spring steel would be good for this part, but a piece of an actual leaf spring would need to be annealed in order to machine, then can be re-hardened.
