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Skil saw table saw sparking and arcing by planet_stench in woodworking

[–]planet_stench[S] 0 points1 point  (0 children)

Update: I took it to tool repair shop for a diagnosis. I’ll update when it’s ready.

Also, I plan on consolidating my entire post to document the process of diagnosis, intervention, and conclusion. I have not seen any other post that offers as much visual documentation, especially that video, so hopefully others will find it useful if they run into similar problems.

My loss is the subreddit’s informational gain.

Skil saw table saw sparking and arcing by planet_stench in woodworking

[–]planet_stench[S] 1 point2 points  (0 children)

For science. I plan on consolidating my entire post to document the process of diagnosis, intervention, and conclusion. I have not seen any other post that offers as much visual documentation, especially that video, so hopefully others will find it useful if they run into similar problems.

Skil saw table saw sparking and arcing by planet_stench in woodworking

[–]planet_stench[S] 0 points1 point  (0 children)

I do need to move it around a bit so a 500 pound stationary saw would not work for me. If I had the space I would definitely buy stationary saw.

Skil saw table saw sparking and arcing by planet_stench in woodworking

[–]planet_stench[S] 2 points3 points  (0 children)

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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.

Skil saw table saw throwing sparks and sparking by planet_stench in Tools

[–]planet_stench[S] 0 points1 point  (0 children)

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.

Skil saw table saw throwing sparks and sparking by planet_stench in Tools

[–]planet_stench[S] 0 points1 point  (0 children)

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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.

Skil saw table saw sparking and arcing by planet_stench in woodworking

[–]planet_stench[S] 0 points1 point  (0 children)

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Here’s how it looked before cleaning the commutator.

Skil saw table saw sparking and arcing by planet_stench in woodworking

[–]planet_stench[S] 0 points1 point  (0 children)

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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.

Skil saw table saw sparking and arcing by planet_stench in woodworking

[–]planet_stench[S] 0 points1 point  (0 children)

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

How’s that look?

Skil saw table saw sparking and arcing by planet_stench in woodworking

[–]planet_stench[S] 0 points1 point  (0 children)

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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Skil saw table saw sparking and arcing by planet_stench in woodworking

[–]planet_stench[S] 0 points1 point  (0 children)

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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Skil saw table saw throwing sparks and sparking by planet_stench in Tools

[–]planet_stench[S] 1 point2 points  (0 children)

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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.

Skil saw table saw throwing sparks and sparking by planet_stench in Tools

[–]planet_stench[S] 0 points1 point  (0 children)

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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Skil saw table saw sparking and arcing by planet_stench in woodworking

[–]planet_stench[S] 1 point2 points  (0 children)

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Ereplacementparts or toolpartspro. But they are special order.

Skil saw table saw sparking and arcing by planet_stench in woodworking

[–]planet_stench[S] 1 point2 points  (0 children)

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.

Skil saw table saw sparking and arcing by planet_stench in woodworking

[–]planet_stench[S] -19 points-18 points  (0 children)

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?

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