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Shop #1: The Table Saw Adventure

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Blog entry by topcat posted 1007 days ago 831 reads 0 times favorited 2 comments Add to Favorites Watch
no previous part Part 1 of Shop series Part 2: The Table Saw Adventure part deux »

After a weekend of cleaning up the shop, I decided to start with the rest of the arrangement. The workbench and table saw tune up. The workbench will be another “work in progress” project and, if I’m lucky, will have an overhead drum sander at one end . . . but, that’s another story. The table saw needs a whole lot of attention. It’s not the best model available, but the JTS-10DD has served my basic needs for about 7 years. It has survived an attempted abduction from a jobsite (good thing it was bolted to the floor), a flood which deposited a 16” water mark on the legs and rusted up the top a bit and a life in my old garage.

From Table Saw Adventure
Here she is, starting to be stripped down.


The blade seemed like a good place to start, so I checked it and found a wobble. The blade didn’t seem like the problem, because it sighted flat and it seemed like checking the arbor was a better place to start. Sure enough, the arbor had a wobble. It is a direct drive saw, which is a notorious set up for wobbles and inaccuracies, but I am determined.

From Table Saw Adventure


The gear assembly clamps onto a mounting plate and is attached to the motor via hex socket cap screws. There are also four brass screws which seem to control the pitch of the blade. Here’s a better shot of the brass screws, which have hex nuts.

From Table Saw Adventure
These seem to be problem.


After removing the arbor assembly, the hypothesis seem to have been confirmed. It also seems the wobble is due to a contact issue inside the arbor assembly. It seems when I pull lightly on the arbor, it loses it’s wobble. So, we’ll see what happens. I plan on posting a follow up to this entry after I clean and adjust the arbor assembly. Here’s a parting shot of the arbor assembly after it was removed.
From Table Saw Adventure
Pretty dirty stuff. A good cleaning and reassembly should help, but we’ll see. I’ll have to figure out a way for the brass screw to slide along the metal mounting plate while keeping a bit of tension on the arbor assembly. I did see some negative reviews of this saw, but it’s the best one I have.

-- Tom - As you get older, you learn to hide your mistakes better



2 comments so far

View PurpLev's profile

PurpLev

8476 posts in 2235 days


#1 posted 1007 days ago

good diagnosis.

as for the saw getting negative reviews – you’ve had it for 7 years and it still performs I think thats gotta count for something positive.

hope you can resolve the wobble issue quickly

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View topcat's profile

topcat

43 posts in 1015 days


#2 posted 1007 days ago

Thanks Purp. The older I get, the more I come to terms with being a cheap Polak! :) I’ve been told by many really good old timer carpenters that it’s almost never the tool, but the operator. I have a hard time spending more on something, if I can get the cheaper one to work as well. Unfortunately, there have been times when the cheaper tool really was cheap and I ended up paying for one bad one and one good one to replace the bad one.

I may not be able to get all of the vibration out of the blade. I just reassembled the arbor and, although much better, it’s still not great. I ended up shimming the small rear bearing with a washer I found around the shop (a wave washer; tying explaining that one to the guy at Menards.) I’ll post some pics and the results of some test cuts tomorrow. Hope you’ll check it out.

-- Tom - As you get older, you learn to hide your mistakes better

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