|
|
Post by duff on Nov 12, 2017 14:52:11 GMT -5
Ok I have an old craftsman tablesaw. It is a 1hp single capacitor electric motor.
It was losing power causing burn marks on the wood with a new blade. Eventually got to where it would not even turn the blade. Figured out how to clean and that took care of it.
NOW....it will start and cut better than ever but today I heard a very light pop and slight loss of power. Turned it off. No issue. Turned it on again and let it run about 30 seconds with no issue. Turned off and on then cut some wood again. Good speed and power but had the pops and started to get some smoke. Turn off and thinking it was capisitor but if that was it wouldnt it prevent it from starting?
Maybe it is arcing?
Any advice on troubleshooting?
|
|
|
|
Post by featherduster on Nov 12, 2017 14:59:38 GMT -5
As a former electrician I would say it going bad.
|
|
|
|
Post by duff on Nov 12, 2017 15:06:29 GMT -5
That was my original guess too but when it was running like a champ I was hopeful it just needed cleaned and I did not put it back together correctly.
|
|
|
|
Post by dbd870 on Nov 13, 2017 8:09:47 GMT -5
Yeah I'd say you have insulation breaking down; however it would be worth checking the leads from the stator going into the junction box, if you have a bad spot there you could sleeve that lead and press on. Some motors, but not most have run cap's - if that one has one check it out.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Nov 13, 2017 8:13:06 GMT -5
I'm an EE and yes the insulation is breaking down and will short soon. Mine went out last year with same issues. Lasted about 10-15 hours of use later.
|
|
|
|
Post by duff on Nov 13, 2017 21:12:12 GMT -5
It is certainly the capacitor. Took it off today and it was busted up pretty good. Yesterday it did not look bad. Today no question on what was damaged
|
|
|
|
Post by span870 on Nov 14, 2017 20:15:12 GMT -5
As a former electrician I would say it going bad. As a never been electrician and have absolutely no idea what I'm talking about, I concur with your assessment 100%. Ryan. Did you try to hit it with a hammer? If the initial impact doesn't help matters, may I suggest a bigger hammer. |
|
|
|
Post by span870 on Nov 14, 2017 21:21:07 GMT -5
Boys I just realized something we are leaving out here. Operator error.
Now going by who posted the question:
A. Is the saw plugged in?
B. Understanding that it is a new blade, is it installed correctly? The teeth part go INTO the wood.
C. Is it turned on? You don't push the wood through the blade, it actually cuts the wood.
D. Are we sure it is in fact a saw we are dealing with?
|
|
|
|
Post by duff on Nov 15, 2017 5:37:25 GMT -5
Boys I just realized something we are leaving out here. Operator error. Now going by who posted the question: A. Is the saw plugged in? B. Understanding that it is a new blade, is it installed correctly? The teeth part go INTO the wood. C. Is it turned on? You don't push the wood through the blade, it actually cuts the wood. D. Are we sure it is in fact a saw we are dealing with? Ha...I knew that dangly thing I cut off was usefull. So you are telling me I should tie it back together? |
|
|
|
Post by span870 on Nov 15, 2017 5:53:56 GMT -5
Just twist the wires back together and hold them in your mouth when you hit the power switch. Saliva ensures you have a good connection.
|
|
|
|
Post by duff on Nov 15, 2017 6:14:52 GMT -5
What would I do without you?
|
|
|
|
Post by dbd870 on Nov 15, 2017 8:35:29 GMT -5
Stay alive?  |
|
|
|
Post by span870 on Nov 15, 2017 9:45:23 GMT -5
Just twist the wires back together and hold them in your mouth when you hit the power switch. Saliva ensures you have a good connection. Look here. My neighbor used to raise rabbits and she said it was true so I tend to believe it. |
|
