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Table Saw Motor Problem

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Forum topic by blockhead posted 08-10-2009 01:26 AM 1220 views 0 times favorited 8 replies Add to Favorites Watch
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blockhead

1457 posts in 2063 days


08-10-2009 01:26 AM

Topic tags/keywords: question tablesaw

Hi LJ’s. I could really use your help on this. I have a 12” Foremost TS that is having motor issues. I ripped a piece of wood and it worked great. I turned it off, got another piece to rip, turned it on, and it took about 3-5 seconds to get up to speed. Before, it only took a second at most. I tried to rip the wood, but there was very little power under load. Bad motor? Any help would be GREATLY appreciated. Thanks!

-- Brad, Oregon- The things that come to those who wait, may be the things left by those who got there first.


8 replies so far

View Sam Yerardi's profile

Sam Yerardi

244 posts in 2650 days


#1 posted 08-10-2009 01:43 AM

I’m not familiar with a Foremost table saw, but depending on what type of motor you have, it could be several things. If it is a capacitor-start motor (AC), the capacitor could be bad. In either case if it is a an AC or DC motor, it could be one or more the windings in the motor have shorted together. The motor will still run, but won’t have as strong of a magnetic field to turn the motor.

-- Sam

View knotscott's profile

knotscott

5610 posts in 2130 days


#2 posted 08-10-2009 02:32 AM

I had the same thought Sam did…bad capacitor. It’s gonna cost almost $7, and may take 5-6 minutes to fix it! ;-) Any motor shop or electronics surplus place should have a cap that’s close enough to work…the values only need to be close.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

View blockhead's profile

blockhead

1457 posts in 2063 days


#3 posted 08-10-2009 02:39 AM

Yes, it does have a starting cap. I should have mentioned that originally. I really appreciate the help LJ’s! Thanks!!!!

-- Brad, Oregon- The things that come to those who wait, may be the things left by those who got there first.

View Tony Z's profile

Tony Z

205 posts in 2545 days


#4 posted 08-10-2009 02:41 AM

I would check the pulley. I had this happen to me. The set screw that holds the pulley on the motor shaft loosened up and was spinning on the shaft. It took awhile to get up to speed and when I tried to feed a board it just bogged down.

-- Tony, Ohio

View Jimi_C's profile

Jimi_C

507 posts in 1989 days


#5 posted 08-10-2009 02:59 AM

Yeah my first thought was belt/pulley/linkage between the motor and blade. I’d check that before tearing the motor apart :)

-- The difference between being defeated and admitting defeat is what makes all the difference in the world - Upton Sinclair, "The Jungle"

View blockhead's profile

blockhead

1457 posts in 2063 days


#6 posted 08-10-2009 11:27 PM

Tony and Jimi, you guys nailed it. The pulley was loose and after a short easter egg hunt for the key, she’s running like a champ once again. Thanks, BIG TIME!!

-- Brad, Oregon- The things that come to those who wait, may be the things left by those who got there first.

View DocK16's profile

DocK16

1140 posts in 2841 days


#7 posted 08-10-2009 11:43 PM

LJ’s to the rescue!

-- Common sense is so rare anymore when you do see it, it looks like pure genius.

View Jimi_C's profile

Jimi_C

507 posts in 1989 days


#8 posted 08-11-2009 12:42 AM

Good to hear, hopefully they’re all that easy.

-- The difference between being defeated and admitting defeat is what makes all the difference in the world - Upton Sinclair, "The Jungle"

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