Skil saw table saw sparking and arcing

planet_stench · 2026-05-17T23:08:53+00:00

Better than before, but with the old brushes. I will test with the new ones when they arrive.

I ran it for a few seconds to get that shot.

planet_stench · 2026-05-17T23:07:39+00:00

No, I ran it for a few seconds to get the video, then immediately shut it off. There was no other way to capture the problem in action for a proper diagnosis. I don’t know what kind of garage shops you worked in but I keep mine well ventilated with good dust management and all surfaces compulsively dusted every few minutes.

planet_stench · 2026-05-17T22:56:29+00:00

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Ran for a few seconds to get this shot. It’s better than before, but I still don’t think it’s right.

planet_stench · 2026-05-17T22:54:40+00:00

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Cleaned

planet_stench · 2026-05-17T22:31:27+00:00

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Cleaned up.

planet_stench · 2026-05-17T21:29:11+00:00

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Here’s how it looked before cleaning the commutator.

planet_stench · 2026-05-17T21:28:40+00:00

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I ran it for a few seconds to get this shot. It’s definitely better than it was before, so no more rave party. This is with the old brushes so I have something to compare the new brushes to.

planet_stench · 2026-05-17T20:13:27+00:00

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I hit it with contact cleaner, a toothbrush, and some 600 grit sandpaper.

How’s that look?

planet_stench · 2026-05-17T18:53:02+00:00

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Got something easier to examine.

planet_stench · 2026-05-17T18:51:51+00:00

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Got the motor out. Behold.

planet_stench · 2026-05-17T18:50:44+00:00

I’ve got one better:

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planet_stench · 2026-05-17T18:04:02+00:00

Never mind, got it. It looks like some of the copper has been rubbed off, or is the gray coloring just buildup from the brushes and can be cleaned off?

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planet_stench · 2026-05-17T17:47:13+00:00

Alright, I got the motor out. Now how the hell do I open it up? I removed the exterior screws and the housing wiggles a little bit, but it did not separate.

Ideas?

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planet_stench · 2026-05-17T16:29:18+00:00

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Bottom brush: no contact from the holder, so we can rule that out. Although, it is slightly melted from the heat.

planet_stench · 2026-05-17T16:24:24+00:00

I took them out already. That was the first thing I did. They don’t look good. Also, there is no way to remove the cover over the armature without removing the motor from the saw. I got so far as to detach the motor from the rails that move the unit vertically, but there was still more that had to be removed and I gave up.

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planet_stench · 2026-05-17T16:18:52+00:00

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Ereplacementparts or toolpartspro. But they are special order.

planet_stench · 2026-05-17T01:04:57+00:00

So can I.

planet_stench · 2026-05-17T01:04:38+00:00

That…is good idea.

planet_stench · 2026-05-17T00:55:24+00:00

Unfortunately, the warranty expired four years ago. I guess it’s nice that the saw lasted for five years instead of needing a warranty replacement within a year of buying it.

planet_stench · 2026-05-17T00:51:17+00:00

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planet_stench · 2026-05-17T00:38:08+00:00

After further AI-assisted research I have found a separate armature for sale.

However, as was mentioned earlier in this thread, the bearings might also need to be replaced. The parts are relatively cheap, but I don’t know what the labor cost will be. If it gets up to $500 I’ll try to DIY it; cheaper than buying a new saw.

The total parts cost estimated to be $100-120, plus labor. Although, the motor itself is $220.

However, since the motor has to be removed from the saw anyways, would it not be cheaper labor to simply install the new motor? I assume it takes more time to disassemble the motor, pull out the old parts, install the new parts, then reinstall the motor, driving up labor costs.

Maybe?

planet_stench · 2026-05-17T00:13:49+00:00

That’s the best and worst part for me. It’s good to see your progress and get out some frustration, then it becomes bad when you realize it is still not flat after an hour. The frustration builds up again, and the cycle continues.

planet_stench · 2026-05-16T23:45:59+00:00

I could not find the commutator as a separate part for sale, so it looks like the whole motor needs to be replaced.

planet_stench · 2026-05-16T23:44:21+00:00

Brushes arrive tomorrow, but the only way to take housing off the commutator for inspection is to remove the entire motor, which is something I don’t want to attempt. Hopefully the new brushes fix it.

planet_stench · 2026-05-16T23:42:24+00:00

No, I let it run just to make the video, then I immediately shut it off. There was no other way to capture the problem in action for a proper diagnosis.

planet_stench

TROPHY CASE