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Delta scroll saw - can I get rid of quickset II chucks?

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Forum topic by startingfromscratch posted 11-25-2015 12:54 AM 1226 views 0 times favorited 6 replies Add to Favorites Watch
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startingfromscratch

69 posts in 2657 days


11-25-2015 12:54 AM

I got a delta shopmaster ss-350 scroll saw that has quickset II chucks. It was new in box when I got it second hand for $50 with a stand and already one of the chucks has failed (the cam doesn’t stay flipped with the blade in it no matter ow much I mess with the screw). I was able to find a complete replacement (delta 40-251) for $20 on eBay but it looks like 1) they are scarce now and 2) I may be needing them often given that this one failed with very little use.

My question: can I swap out the quickset chucks for another variety of chuck and keep using this particular saw or do I have to move to another model altogether or get away from them?


6 replies so far

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CharleyL

197 posts in 2830 days


#1 posted 11-25-2015 02:57 PM

Those clamps are almost identical to those on my Delta Q3 40-650 scroll saw. The horizontal bolt that holds the
clamp together with the nut that you adjust for thicker/thinner blades was too soft and stretched as I clamped the blades tight. Over time they even became curved from the forces of the clamp so the clamp would no longer hold the blade tight. Replacing this bolt in each blade clamp with a much harder bolt made all the difference in the world on my saw. If I remember correctly, they are metric. It’s a cheap fix if this is what’s causing your problem so it should be worth trying.

Charley

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startingfromscratch

69 posts in 2657 days


#2 posted 11-27-2015 01:16 PM

Charley, this is super helpful and I thank you for your reply. I did notice that the alignment of the sides of the chuck was a little off and that the screw was a little bent.

Could I trouble you for a little more detail? I’m not sure how exactly to get a much harder bolt. What am I looking for exactly and where can I find it?

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CharleyL

197 posts in 2830 days


#3 posted 11-28-2015 04:46 PM

When I needed them (in 1998) my saw was still under warranty and Delta had great customer service. They sent me the new bolts that are still in use in my saw today. It was obvious from my conversation with them that this was already a recognized problem. Today, I doubt you will get much help from them, but if your saw is still under warranty I would try to get them from Delta first.

If, like me, your saw is out of warranty I would remove one of the bolts and take it to one of the better hardware stores. There is a True Value hardware store near me where I go when I need difficult to find hardware, because the guys working there really know hardware and are a great help. Explain your problem and hopefully, they will have the harder bolts of the same size. There is also a bolt specialty wholesaler in my area that I occasionally go to. They only sell by the box full, but their prices are so good that it’s sometimes worth buying a whole box to get what I need and the counter guy knows his business, so if you don’t find them anywhere else, consider finding a bolt wholesaler near you. The Lowes near me has a bunch of drawers containing specialty bolts in the hardware department. I know they have larger sizes of grade 8 hex head bolts so they might have what you need. The higher the grade #, the better the bolt – look for the lines stamped on the bolt head pointing toward outward from the center toward the hex edges – the more lines = the better the grade, up to 8). I think any better grade bolt above the common soft grade will work for this so you may find what you need there, but usually you are on your own when deciding what is right for your need at Lowes or Home Depot. Very few of the people in my local store are any help for things like this.

Good luck. Please report back on your success or failure. I may have a few more options for you.

Charley

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MrUnix

4231 posts in 1664 days


#4 posted 11-28-2015 06:32 PM

If, like me, your saw is out of warranty I would remove one of the bolts and take it to one of the better hardware stores.[...]

I doubt seriously that saw is still under warranty… but from the description of the fix Charley gave, it’s just a simple hardware store item and shouldn’t cost more than about a buck or two to fix, if that… maybe pick up several so you have spares should it happen again. For smaller stuff, it’s hard to find higher grades… but stainless might be an option as well.

Cheers,
Brad

PS: Delta service is better than it was when they were in transition a few years ago. I needed a missing part a few months ago (was still under warranty), contacted them, and got the replacement part three days later. They didn’t even ask for proof of purchase, just an address for where to send it.

-- Brad in FL - To be old and wise, you must first be young and stupid

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startingfromscratch

69 posts in 2657 days


#5 posted 12-05-2015 01:09 PM

Just reporting back, I was able to determine that it was an M4x.70 screw at Home Depot and get a couple stainless with wing nuts. I also got a replacement cam/handle just in case the other one was deformed at all and swapped that out. So far so good, I had to cut out the dust collector a little to make the wing nut fit and grind the heads of the bolts to get them to fit flush and be held (the other bolt was a hex head and these are round Phillips – a little impatience caused me a could hot metal imprints in my finger tips :)). But, the blade held last night. I’ll have to see if then stainless bolts resist bending but at least I know the size if I have to hunt for something specialty that is harder.

Really appreciate the help!!!!! Saved me from having to get another saw!!!!

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CharleyL

197 posts in 2830 days


#6 posted 12-06-2015 03:46 PM

You should be able to find those bolts with hex heads. Home Depot and Lowes only carry the high volume stuff, so you should be looking elsewhere.

Now that you know the thread size and bolt length it should be easy to find good hex head bolts that fit. Have you done a Google search for them? McMaster Supply or Graingers would be the best possibilities if you want to get them from the internet, but an Ace or True Value hardware store should have them in small quanities too. Look in the yellow pages for one of these better hardware stores. One is surely somewhere near you and every one that I’ve been in has both a bolt expert and a large quantity of little drawers full of all kinds of difficult to find nuts, bolts, motor brushes, machine knobs, etc. Tractor Supply is another place that carries the better quality bolts.

Stainless is hard, but you don’t really need stainless, just a better quality bolt. The better quality bolts have marks on the heads, kind of like the hour marks on a clock, that will be located on the head above each point of the hex head. The hardest is a grade 8 which has a mark (short Line) on the head above and pointing toward each point of the hex head. Softer versions of these quality bolts will have fewer lines, and the common grade, like most of the bolts on the market, have none of these lines. Your need probably doesn’t require the 6 line grade 8, but get them if you find them. Any bolt with one or more grade lines will likely work for your need (I’ve never seen a quality bolt with less than 3 grade line markings). The price difference between them is so little that it doesn’t matter anyway.

Charley

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