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Craftsman Pro 315 Table Saw Noise

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Forum topic by Lrobinson posted 12-29-2017 12:31 AM 575 views 0 times favorited 5 replies Add to Favorites Watch
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Lrobinson

6 posts in 554 days


12-29-2017 12:31 AM

Topic tags/keywords: table saw noise squealing pulley belt contractor belt driven table saw craftsman noise

I’ve searched the internet for a possible explanation of the noise my table saw is making. I can’t describe it, so I’ve made 3 videos. As I was trying to fix the noise, I ended up just doing a total tuneup of the saw (or at least a tune up of everything I was capable of tuning up) So, it’s all square, the pulley’s are aligned, new belt, etc. I also took an air compressor and blew out the motor. The following videos demonstrate the noise I’m talking about. It’s a clicking sound when you just turn the motor pulley by hand, but when the saw is on, its a SCREAMING sound.
1. While the motor is off: https://youtu.be/x_Bol7CgUzg

2. While the motor is on: https://youtu.be/buKlV922gvM

3. Powering down: https://youtu.be/LfJpMEsb07w

Any help/suggestions would be greatly appreciated


5 replies so far

View Tennessee's profile

Tennessee

2880 posts in 2631 days


#1 posted 12-29-2017 01:02 AM

Well, to my ear, it is definitely metal on metal.
Either in a bearing, or a shim, something is rubbing.
I’d look for spacing on that shaft, from the pully right through to the end of the shaft.
Something is rubbing.
Since it does spin, and seems to spin fairly effortlessly, it seems like something is just a hair out of alignment.

-- Tsunami Guitars and Custom Woodworking, Cleveland, TN

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wichman3

73 posts in 737 days


#2 posted 12-29-2017 01:23 AM

Trying running the motor with the lights out, is there arcing going on.
Use a mechanics stethoscope (or a 4 ft dowel) to isolate each bearing.
Use a penetrating spray oil on each bearing, one at a time to isolate.

View MrUnix's profile

MrUnix

6884 posts in 2315 days


#3 posted 12-29-2017 01:37 AM

Open up the motor… sounds like bad bearings to me. You can verify once you crack it open. That is if it has ball bearings. If it’s sleeve bearings, when was the last time you oiled them?

Cheers,
Brad

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

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Lrobinson

6 posts in 554 days


#4 posted 12-29-2017 02:39 PM

I may try to open up motor today. I’ve never done anything that extensive before so wish me luck.

View wichman3's profile

wichman3

73 posts in 737 days


#5 posted 12-29-2017 05:08 PM



I may try to open up motor today. I ve never done anything that extensive before so wish me luck.

- Lrobinson


Take pictures as you go and make alignment marks on parts as well.
Good luck :) (you Can do this)

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