Delta Unisaw Blade Height Lock

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Forum topic by Wolfspaw posted 08-13-2017 10:08 PM 1827 views 0 times favorited 2 replies Add to Favorites Watch
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2 posts in 2362 days

08-13-2017 10:08 PM

I have a Platinum Edition Delta Unisaw Model 36-945. The blade height lock no longer functions. It appears that the tapered plugs (bullets) that are in the worm drive shaft have worn to the point of no longer working. Has anyone replaced these plugs? I would like to find some instructions on how to disassemble the saw with the least amount of pain. (I sent several emails to Delta Customer Service with no response) Thanks for any help that you can provide.

2 replies so far

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8160 posts in 3005 days

#1 posted 08-13-2017 10:28 PM

I doubt it is the bullets that have worn down, but the pot metal sleeve (angle pointer bracket) that gets worn down. Over time, and raising/lowering the blade without first loosening up the lock will wear a groove in it – to the point where the locking bullets no longer make sufficient contact. Here is an example showing the inside of the sleeve:

To replace, you need to first remove the crank handle, and then the two screws that hold it on.

Also – I’ve found that the lock isn’t really needed. Mine was missing the lock knobs when I bought it, and I used it without them (both height and tilt) for quite a while without any problems. I did finally machine up my own lock pins that I have in there now, but that was just because I had some spare time and felt like playing with my metal lathe :)


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

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2 posts in 2362 days

#2 posted 08-14-2017 03:33 PM

Brad, thanks so much for your help. I removed the pointer bracket sleeve per your instructions. The sleeve is fine…no groove but the bullets are junk. What should be a bullet shaped end is now just a concave semicircle. I have only been able to remove one of them so far…the other must be too deformed to slip out. I’ll probably need to cross drill and tap one side of a metal sleeve with a clearance hole on the other side to create some kind of a jacking bolt to push the bullet out. It’s always something!

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