My bandsaw has a 1 hp 110/220 TEFC motor, wired for 220 v. While sawing this morning it suddenly bogged down while cutting. Now it starts a little slower, runs a little slower and has hardly any power. The blade wheels turn easily when the motor is off. Does this sound like the internal switch not working or the windings need checking? Or even the capacitor?
Check the capacitor(s). Probably the run capacitor.
-BR
I don't know how your motor is wired but in my table saw motor there is a contact switch that occasionally need cleans. If enough dirt gets in the contact the motor will not run.
That is why I vacuum my motor after every use.
This one is totally enclosed. (TEFC) Nothing to vacuum. But it may have an internal switch. I will look at the capacitor, but Not going to bust the motor open.
It is easy. There are two or four screws that hold the motor together. Removing this usually separates the motor into four parts. Both end housing with the bearings for the armature, and the center section with the magnets. Usually you can get to the area of the capacitor, and switches by removing the cover over the switches.
If the motor has never been worked on and it is of any age, I would atleast remove the cover over the capactor and wire connection and vacuum it out.
Could be bearings going.
I'm betting on the capacitor.
i am lazy so i would check the easiest things to check first
electrical outlet the plug the on off switch etc
then think about the motor
would expect bearings to make noise if failing
compressed air and vacuuming can do wonders
Do you even read posts before responding?
Just what is he going to vacuum?
Confession time. I assumed it was a TEFC because it looks like my other motors that ARE. Last evening I opened the connection box on the side, the wires looked fine. To take the cover off the capacitor I had to remove the fan cover to get at one screw. To my amazement the whole end of the motor is open beneath the fan. So I blew it out and there was no dust inside. I could not see the contacts but the centrifugal part looked good and moved ok. The capacitor looked good, but that means nothing. I would have to drive 50 miles to pick up a capacitor so I will just take the motor to the electrical shop and let them check it out. Thanks for all the responses.
Have you reset the breaker / changed the fuses ? Checked the receptacle and switch for loose / burnt wire connection ? ie: simple stuff first. John T.
My $60 voltimeter (Sperry DM-6450) has a "capacitor checker" on it. Maybe something like that would be a worthwhile investment for you? HTH.
If you happen to have a "powered lawn edger", I would be happy to trade with you for the day! : ) I have been debating whether to get the B&D $75 edger, or go the old-fashioned $18 route. The last 2 times I just used a serrated knife. Is the old-fashion way as bad as I remember it from my youth?
Bill
Years ago I had a corded B&D edger. The blade had "wings" on the side and would just blow out a trench. My newer one has a gasoline engine and runs much slower and is less useful. The driveway and streets here do not have curbs and are asphalt, so the edges are more tapered and somewhat irregular. After using the "edger" I have to finish off with a string trimmer or a hoe.
Thanks Mr. Ross. I have regular curbs and concrete. I think I have talked myself into trying the B&D unit based upon the thought that it will almost-surely do a "more presentable" job.
I know many of you have been worried about my bandsaw. I thought I had checked everything (wiring, breakers, switch, etc.). I was about to remove the motor and noticed that the belt was really slack. The tightening slots were maxed out. I went down and bought a new belt and replaced it. I always forget that the lower wheel fastens with a left-hand thread so I tightened it even more trying to loosen it. Then noticed the thread so got it off with an impact wrench to replace the belt. Fired it up and it saws like a new one. As somebody told me, check the little things first.
Good news on your BS, I assume you fared well through Irma.
Rain (4.7 in) Steady wind but no real gusts. Trees down all over town, but not mine. We were out of power about 7 hr. Lots of pine burrs in my yard and a dump-truck of small limbs. Have about finished cleaning up the yard. Haven't seen any good turning wood, mostly pine, oak and pecan.
Happy endings make me cry.
ROTFL! Good on you!
wonder if it had the original belt
surprised that the belt stretched
maybe the belt was too tight and stretched that way
did you get a smaller belt for it
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