Just smoked the motor on my Jet Bandsaw

  • Advertise with us

« back to Power Tools, Hardware and Accessories forum

Forum topic by DustyJohn posted 02-06-2013 09:34 AM 1791 views 0 times favorited 13 replies Add to Favorites Watch
View DustyJohn's profile


19 posts in 1935 days

02-06-2013 09:34 AM

The motor on my 12” Jet Bandsaw is toast. With a puff of smoke I heard a cash register ring. Has anyone run into this before? It’s a 1/2 hp motor. I might go up to a 1 hp, same rpm for more torque. Wondering about mounting and having to change pullies since this is probably a metric motor. Any suggestions are appreciated.

13 replies so far

View Surfside's profile


3389 posts in 2173 days

#1 posted 02-06-2013 02:33 PM

That was bad. Sorry, never owned that band saw, can’t help. Goodluck

-- "someone has to be wounded for others to be saved, someone has to sacrifice for others to feel happiness, someone has to die so others could live"

View waho6o9's profile


8191 posts in 2576 days

#2 posted 02-06-2013 02:37 PM

Sure it’s not just a capacitor?

Oh, & welcome to LJ’s!

View prattman's profile


445 posts in 2117 days

#3 posted 02-06-2013 02:41 PM

Check the capacitors before you condemn th
e motor

-- Everyone calls me Ed or Eddie , mom still calls me Edward if she is mad at me.

View ChrisK's profile


1964 posts in 3081 days

#4 posted 02-06-2013 02:46 PM

I agree, check the capacitor. If the windings are cooked the breaker should have blown and there would be little smoke. The motor should have a NEMA mounting and be easy to replace. Check for enough room before buying a 1 HP motor.

-- Chris K

View helluvawreck's profile (online now)


31092 posts in 2866 days

#5 posted 02-06-2013 03:55 PM

You can also check the motor wit a multimeter. Sometimes it don’t pay to get out of bad. I’m sorry about that and I hope you get it fixed.

helluvawreck aka Charles

-- helluvawreck aka Charles,

View Cellulosespinner's profile


63 posts in 2034 days

#6 posted 02-06-2013 05:15 PM

Not the end of the world. If you can, check the capacitor first. a lot of motors use the same frame size from 1/2 hp to 1 hp so I’m not sure finding on that would fix will be a problem. However a 12” that wasn’t designed for a 1 hp motor may give you trouble down the road…...Like a 460 in a Pinto.
To check the capacitor you first have to drain it,don’t short it! I use a light bulb. then take a multimeter set at 1k and check if the needle swings(or if its a digital if you get a reading which will only last a second or so).....Then reverse the leads and check again, if the needle swings (or if you get a digital reading) it’s good…if not it’s bad. Grainger has capacitors. maybe a motor….but if you need one there are some other place to check.

-- Once in a man's life you should have a good dog, a good horse and a good woman. The trick is to get them all together at the same time

View Underdog's profile


1095 posts in 2035 days

#7 posted 02-06-2013 05:41 PM

I’d buy the capacitor from Jet. I’ve had trouble getting the right aftermarket capacitors before. They aren’t that expensive.

I’ve seen several Jet mini-lathes blow a capacitor, and once replaced, the lathe still runs like a champ.

-- "woodworker with an asterisk"

View RonInOhio's profile


721 posts in 2863 days

#8 posted 02-06-2013 05:52 PM

Dust, debris or critters in the switch box of the saw can cause a short . Check the easiest things first. Remove the switch cover and blow it out with air. Check it for sawdust and critters. Someone had critters crawl into the switch box and the same thing happened to them. Poof . No power.

If the caps check out , does the motor have brushes ? If it does follow the owners manual for removing them and checking them for pits or excessive wear.

If one brush is pitted , replace both. Always replace brushes in pairs. Your manual should explain at what length the brush/s can be before it needs replaced.

If the saw has brushes and you replace them, run the saw freely for 5 minutes. This sets the brushes and will extend the life of the brushes.

View DustyJohn's profile


19 posts in 1935 days

#9 posted 02-06-2013 05:55 PM

I’m going to change the capacitor and cross my fingers. I’ve changed capacitors on my sander twice with success. I was resawing when the motor stopped and a smoke came out of the motor, not the capacitor. I have hopes maybe it’s a dual capacitor of some sort. I’ve spend ten bucks on more foolish things. Thanks to all for the tips, this website is awesome!

View waho6o9's profile


8191 posts in 2576 days

#10 posted 02-06-2013 10:51 PM

View DustyJohn's profile


19 posts in 1935 days

#11 posted 02-07-2013 04:27 PM

I humble myself, a new lesson learned. Just put the capacitor in and away she went. My thanx to all. When smoke came out of the motor instead of the capacitor housing, I thought the motor was toast. I didn’t know if the capacitor went out while the motor was running, it would stop. I thought it was mainly for startup.

View shampeon's profile


1775 posts in 2182 days

#12 posted 02-07-2013 06:20 PM

Well, the circuit is still going through the capacitor, so if it blows everything will stop. Glad it was something easily fixed, though. I had that same 12” Jet, and finding a face-mounted 1 HP motor was going to be tough and/or expensive.

-- ian | "You can't stop what's coming. It ain't all waiting on you. That's vanity."

View chrisstef's profile


17386 posts in 3005 days

#13 posted 02-07-2013 06:36 PM

I hate when the magic smoke appears. Everything magically stops. Sounds like you found the antidote. Sweet.

-- Its not a crack, its a casting imperfection.

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics