Dunlap/ Craftsman drill press issue

[Omar157]

I purchased a Dunlap 103.23622 on CL in decent shape. I finally had a chance to use it yesterday and I had some pretty noticeable runout. I wanted to soak the Jacobs chuck anyway so. I proceded to take it off to reseat but I wasn't sure If it was just pressed on so I hit it a few time before I realized the threaded collar made easy work of it. I put everything back together and I tightened the collar in the photo all the way. Now the spindle pulley is not spinning freely. Is this collar supposed to be loose?
Thanks guys

 

[bjt0055]

I had one of those. I don't think the collar has much to do with the spindle pulley. I'm guessing when you were hitting the chuck you moved the pulley lower causing it to drag?

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[Omar157]

I thought the same thing so I pulled the pulley off and reset it. I tightened the collar and the motor couldn't spin the pulley but as soon as I backed off on the collar just a tiny bit and i was having zero trouble

 

[bjt0055]

It's been awhile since I've messed with the chuck but I've had issues with the pulley I recall doing something similar. Glad you got it.

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[Omar157]

Thanks, idk if I'm doing any damage by leaving it loose

 

[exmaxima1]

AFAIK the Dunlop model drill presses employed sleeve bearings in lieu of the ball bearings found in their Craftsman counterparts. If that's true, I would expect some run out after all these years.

 

[Omar157]

If I replaced the bushings with bearings the same size, would that fix the runout?

 

[Craptain]

If I replaced the bushings with bearings the same size, would that fix the runout?

It would help if it were possible. However I don't think you can do it. There just might be a needle bearing that would fit but I doubt it. I would be looking for a better dp if you do work that needs it. Anything more than simple woodwork that is.

 

[Omar157]

That threaded collar you point to in the picture is called a spindle collar and has nothing to do with the chuck and much to do with the spindle.
It's purpose is to support and secure the spindle in the quill and allow adjustment for thrust bearing. It should be snug to the thrust bearing but not too tight. When you tightened that collar, it squeezed the bearing to the point where it wouldn't turn.

Early 12-1/4" drill presses came in two configurations. You could get a drill press with a tapered spindle or a DP with a threaded spindle. Below left are close-up photos of the spindle collar on a threaded spindle; on the right, tapered spindle.
Above the spindle collar on a threaded spindle is a fiber washer, then the thrust bearing, then the quill. The taper spindle assembly has a slightly different sequence of parts.







It's not likely you'd be able to be able to swap the sleeve bushings with needle bearings. The ID of the bushing is 5/8". I'm not exactly sure of the OD, but it's something like 3/4"... the walls are not very thick. It is likely new bushings would help run-out. In my experience, they need to be reamed after installation.

Check this link for disassembly instructions of a 12-1/4" drill press:
http://www.garagejournal.com/forum/showthread.php?p=5658352#post5658352

I have the threaded one. Thank you I will see if I can locate the bushings and replace them. I have another quick question. The spindle pulley has an angled hole for what looks to be a set screw. I pulled the pulley off and located the hole in the head but it does not have a set screw nor threads. Is that for oil? Or is it missing?

 

[Omar157]

Frank
I pulled everything apart last night. What a chore getting the quill past the indentation made by the set screws. I had to lightly sand it flat again. I can't tell if the bushings are any good but they do spin smoothly and have almost no play. The thrust bearing is definitely shot. One of the balls is missing and when I put pressure on it it locks up so definitely why I was binding when I tighten the collar. I can't tell if anything is bent but looks fairly straight. Do you know where can I buy the bushings and thrust bearing. It's marked nice 605 which I was able to find but not sure if it was original to the machine. Thanks for all of your help

 

[Omar157]

Set screw burrs are a very common issue on the spindles and motor shafts. That's all I do is to sand, file, or stone the high spots off.

Bushings with almost no play means it has some play which will affect run-out. New bushings may be in order, but you will need to ream to the proper id after installation.

Accurate Bearing is a good place to get bearings. However, I bought a 605 thrust bearing from them in the past, but it came from China. I was not satisfied with it. Check to see if they one from elsewhere. They may also have bushings; you'll have to ask. Ebay and Amazon will likely also have what you need.

That is a taper spindle. The chuck has the safety collar.

Where are you located?

I am in New Jersey
Thank you for getting back to me so quickly. What's the best way to order them? Can they cross reference the sears number?

 

[Omar157]

I pulled the bearings out so I am ready to go. I wish I could replace them with ball bearings.
Thanks for your help

 

[Omar157]

Lynn Can go screw herself. I wouldn't spend a nickel with accurate bearing. I had my sizes, all was ready to go and the salesman asked me where I heard from them and I told them. Biggest mistake as now only Lynn can write the order up since she handles orders off the site. What could have been over at 10am dragged on the entire day. If I would have said I found them online . I called back since now the day had passed and was told she would call me within the hour. I called toward the tail end of the day since within the hour was now three hours later and apparently she's upset I called back. She hops on with a major attitude but I dismissed it as it's finally just going to get ordered. She barks at me for having her on speaker and obviously I'm now bothered yet I let it roll off my back. I proceed to give her thethe dimensions off the bushing since the other salesman didn't save the order. I gave her the sizes 13/16 od x 5/8 Id x 3/4 oal. She jumps down my throat for not knowing I'm supposed to give it to her in a specific order ID X OD X OAL. Why does it matter since I specifically said 13/16 is the OD 5/8 is the ID and 3/4 is the OAL. Now I can't just let it go anymore. I refuse to be spoken to like a child. I asked her if there was a problem and she says yes it's too late in the day to deal with this bs order. I asked for a manger which she refused and hung up on me when I gave her a piece of my mind. Frank I thank you tremendously for you help and expertise but I would never buy anything from there and will spread my experience like the plague. Thanks again

 

[Omar157]

You did say she was busy which I can deal with but rude and verbally abusive is another thing

 

[oilfield trash]

Sorry to here about their state of customer service.
Fortunately bearings are not obsolete and should be available elsewhere by searching "nice 605 bearings". I think RBC (www.rbcbearings.com)will have them, if not Amazon or eBay.
I am missing;
Rubber Washer - PN 26812
Fibre Washer - PN 26716
Any help locating these, a substitute or the dimensions would be greatly appreciated.

 

[bmw57isetta]

I've bought two from Purvis Industries. Nice must have sold a zillion 605's to small drill press manufacturers. They run around $5.00 each (plus shipping if there isn't an office in your area.) Most of the stock here in Texas comes out of their Dallas facility. FYI.

http://www.purvisindustries.com/locations.html