Help with the unisaw

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Forum topic by Paul posted 10-22-2009 11:49 PM 4081 views 0 times favorited 4 replies Add to Favorites Watch
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223 posts in 2873 days

10-22-2009 11:49 PM

almost a year ago I went to pick up a 15 dollar shop vac I found on Craig’s list.
When the guy opened the garage I found a full shop of wood working tools. The seller had accumulated tools in hopes of starting a cabinet business. Long story short, 15 years later he’s retiring to the south, never to get the shop going. I had just bought my first house and thought one day I would like to play with wood but I still had a full year of renovations. The seller had a week to clear out all his tools. After two days on the phone and not really knowing what I was negotiating for and almost not really caring whether he sold it to me or not, I went back and bought the Unisaw. I paid 450. I was told he bought it from a shop that rebuilds them. It still has fresh tags on the power cord the original style fence, kickback device and miter gauge are still in the new box. It also came with the right side extension to match the installed left side extension and a safety manual that had never been opened from it’s package. I don’t believe the saw has been used after being rebuilt. I have done some looking around on the internet and I believe I bought good but I still don’t know what I have. I can use a little help.
Here’s the info on the saw and motor. Rockwell #83-621 single phase 1.5hp 3500 rpm 115/230 volt
Saw is Delta 35j21190 34-761s
I believe I have the lower end of the scale with this motor but have the better rpm setup offered with the 1.5 hp.
How old is this saw?
I do have a tabletop table saw that I installed a delta Delta 36-T30 rip fence which I like.. I was thinking to install this fence on the unisaw. Should I use the original fence?
I finally have moved into the new house and would like to get the saw going. I have cleared out the garage and positioned the saw.
Thanks in advance.
Ridgewood NJ

4 replies so far

View Beginningwoodworker's profile


13347 posts in 3094 days

#1 posted 10-22-2009 11:59 PM

It could be a 80’s model.

View cstrang's profile


1829 posts in 2589 days

#2 posted 10-23-2009 12:07 AM

I think you got yourself a good buy, my uncle has a saw like yours that has been fathful to him for many years, he bought it from a high school in the area that was ditching its industrial arts program and I am happy to say that they now offer the program once again. As for the age I am sorry to say that I can’t be much help there but I would reccoment putting a new fence on the saw, the origional is fine (thats all my uncle uses) but its amazing what a new one can do for a saw.

-- A hammer dangling from a wall will bang and sound like work when the wind blows the right way.

View gerrym526's profile


266 posts in 3229 days

#3 posted 10-23-2009 12:13 AM

I’d suggest contacting Delta directly. Their tech support group should be able to tell you the age of the saw, and whether you can put the newer fence on it.

-- Gerry

View Paul's profile


223 posts in 2873 days

#4 posted 10-23-2009 11:49 PM

I spoke to Sawcenter today and from the model number he was able to tell me the saw is from 1985.
I don’t have 230 volts in the garage yet so I was able to rewire the motor and switch for 115 volts.
made a few test cuts it’s a big difference from the old table top saw I was using.
I have the original fence system complete and Sawcenter told me that they are desirable to people who like to restore these saws to the original specs. Since I have an updated delta fence he suggests maybe putting the original fence on ebay. I might do that.
Tonight I’ll take a photo and post it in here.

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