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smokin tablesaw question

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Forum topic by Ted78 posted 07-17-2018 08:13 AM 412 views 0 times favorited 7 replies Add to Favorites Watch
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Ted78

401 posts in 2085 days


07-17-2018 08:13 AM

Topic tags/keywords: question tablesaw refurbishing

I may have messed up. I oiled the motor on my table saw with just plain 3 in 1 oil, and thought ‘what the heck’ I’ll put a drop on the bearings on the arbor shaft. And now it smokes like a chimney when it’s under any kind of load. It doesn’t seem to bog down or lose power, or cut any better or worse or faster or slower, it doesn’t make any odd noises, the belt isn’t slipping, the blade is sharp, it doesn’t burn the wood, the motor’s thermal protection doesn’t trip, nothing in the table saw seems to get hot that I can tell, in fact it seems to work just fine, except for lots of white smoke. I don’t think the smoke is coming from the motor, it’s an old machine and it hangs out the back, seems like the smoke is coming from the cabinet, but I wouldn’t swear to it. It’s an old Rockwell 9” table saw with a 1/2 HP motor, a lower end hobby saw pushing 60 but until now it’s served my purpose admirably. Anybody smarter than me know what’s going on?

-- Ted


7 replies so far

View John Smith's profile (online now)

John Smith

1253 posts in 248 days


#1 posted 07-17-2018 11:52 AM

Ted – can you have someone cut a board on the saw and you look around
the cabinet with a flashlight to try to see where the smoke is coming from ?
what does the smoke smell like ? wood – electrical – petroleum, etc.
I doubt very seriously that a few drops of 3 in 1 oil would produce as much smoke
as you are seeing. so something else is going on. (the smell could isolate the source).

-- Graduated Valedictorian from the University of HardKnocks --

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Ted78

401 posts in 2085 days


#2 posted 07-17-2018 12:54 PM

For right now, I’m on my own, and to make things a more difficult I suffer from anosmia, I can’t smell anything. If I had to guess I’d say petroleum the smoke looks similar to what you might see from cutting oil on a metal lathe or something. I might be able to set up a camera and record what’s going on behind the table saw.

-- Ted

View Richard Lee's profile

Richard Lee

139 posts in 861 days


#3 posted 07-17-2018 01:28 PM

Started smoking right after oiling !
Oil slinging on belt, oil excess oil on shafts burning, you say you put the oil on the shaft How? thru oil cups or just on shaft?
I wouldnt worry to much if it starts to clearup after awhile but if it continues you have something else going on.

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Joe Lyddon

10210 posts in 4138 days


#4 posted 07-17-2018 06:53 PM

Looking forward to seeing pictures of the smoke… and hopefully, it’s source.

My guess is “OIL”... :)

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"

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MrRon

4928 posts in 3329 days


#5 posted 07-17-2018 09:01 PM

My guess is the bearings are shot. The bearings are running hot and when you added oil, the heat of the bearings caused the oil to burn.

View dhazelton's profile

dhazelton

2787 posts in 2382 days


#6 posted 07-17-2018 10:19 PM

The oil probably thinned the grease in the bearings cups You might just need to replace the bearings and you’d be fine again. But I’ll bet they were ready to retire anyway..

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Joe Lyddon

10210 posts in 4138 days


#7 posted 07-17-2018 10:24 PM

If you can bear it, it looks like the bearings are shot… (big grin)

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"

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