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.
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| From Table Saw Adventure |
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.
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| 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.
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| From Table Saw Adventure |
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.
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| From Table Saw Adventure |
-- Tom - As you get older, you learn to hide your mistakes better
2 comments so far
PurpLev
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7814 posts in 1845 days
#1 posted 617 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.
topcat
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43 posts in 625 days
#2 posted 616 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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