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Delta 14" Bandsaw Sliding Bracket

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Forum topic by James Gallo posted 12-05-2016 09:02 AM 505 views 0 times favorited 3 replies Add to Favorites Watch
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James Gallo

68 posts in 1949 days


12-05-2016 09:02 AM

Issue: Upper wheel will not turn without scraping on upper wheel housing.

Background:

When I bought this saw used (28-203 w/riser block), it was tuned to perfection by former owner ( older gentleman).
I used the saw for 2 yrs with no problems. The only upgrade was I put urethane tires on wheels.

Then somehow (don’t ask me how because I don’t know), I broke the bolt that adjusts the tracking arm.
I tried to drill out the bolt while it was on the saw, but stopped because I was afraid I would damage the threads on the sliding bracket casting.

I was afraid to tear into it because I’m not really super mechanically inclined.
I left it that way for months, leaving the blade that was in the saw at the time and was tracking correctly.

I finally bit the bullet and called Iturra Design to order a new sliding bracket. He said he had none and couldn’t source any. He called me back later and said a Jet sliding bracket would work.

When I received the new part, I removed the wheel and the original Delta bracket.
The only difference between the Delta and Jet bracket was the Jet bracket had 2 set screws on one side where the pin for the adjusting arm goes through.
Being an idiot, I centered the pin in the bracket with the set screws, however, I tightened the set screws, instead of leaving a small amount of play so the adjusting arm could swing.

That is when the real trouble started.
After replacing the wheel, I noticed that I couldn’t turn the wheel by hand (no blade), without it scraping the upper housing, no matter which direction I turned the adjusting bolt. (I’m surprised that the bolt even turned because I had tightened those set screws).

I thought that if I put a blade on and tensioned the blade, the wheel might pull away from the housing. As I increased the tension (only to the 1/8” blade mark using a 3/8” blade, I heard a loud snap.

I took the wheel back off and removed the bracket, only to find one side of the bracket with the set screw broke off (because I had tightened the set screws).

The bracket is still usable I think, because it will still hold the pin, but only one set screw is on the bracket.
I really don’t know what I did wrong ( besides tightening the set screws).
The wheel would not turn without scraping even before it broke. I did not change anything else.

I took the original Delta sliding bracket to a machine shop to have them remove the bolt without damaging the threads on the casting. I will then try to re-install it and hope all my problems go away. Maybe it was just the Jet sliding bracket actually won’t work on a Delta, even though it fits.

Can anyone think of any other reason my wheel won’t turn without scraping the housing?

Sorry for the extra long drawn out post, but I’ve tried to explain my situation in detail in hopes of getting some guidance.

To be continued…...

-- Jg, Pittsburgh


3 replies so far

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MustacheMike

259 posts in 1927 days


#1 posted 12-05-2016 12:20 PM

Any pictures?

-- You can trust Mike -" because I will never pull your stash!" See my show weekly at Stumpynubs.com

View Holt's profile

Holt

167 posts in 2468 days


#2 posted 12-05-2016 01:22 PM

Warning, this is a stupid question. I haven’t had the upper wheel off my Delta, but I wonder, is it symmetrical? If not, maybe the wheel is on backwards?

-- ...Specialization is for insects.

View MrUnix's profile (online now)

MrUnix

6010 posts in 2037 days


#3 posted 12-05-2016 05:21 PM

You need to post some pictures because there are no bolts or set screws in the upper wheel assembly. The closest to what you describe is the thumbscrew (top middle of the picture below) that adjusts the wheel hinge (bottom right) in or out… and if you broke it, there should have still been enough of it sticking out – either in front of or behind – to remove it without the need to drill anything. As for the replacement bracket.. set screws? Just for reference, here are the relevant bits for the upper wheel bracket:

The wheel hitting the cover sounds like the very common problem of the hinge bracket getting bent or broken. That is a weak point on these saws, and they are very easy to bend if you try to over-tension a blade. It also occurs most often when trying to use a blade that is too wide to properly tension, particularly when the machine has a riser block.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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