Jigsaw capacitor blew up

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I was using an old Atlas Copco JSEP 600X jigsaw yesterday and it went bang, blowing the fuse in my dust extractor and tripping the MCB.

When I took it apart, I found loads of shredded paper and foil.

It looks like the suppression capacitor has blown up. With it still in place, turning the jigsaw on trips the MCB.

I can't find the schematics for it but I think it was made by AEG, they have one that is very similar, they key difference is that the speed control is built in to the switch (mine isn't on the switch). Other than that the rest of the internals seem to be the same.

I found a capacitor here but with postage it comes to £28.57.

From memory the jigsaw was only about £120 10(?) years ago. Other than the capacitor it is in good condition with little wear and tear. I would replace the capacitor if it was about a tenner but thirty quid?

It is only a back up jigsaw. Can I just unplug the capacitor? Or can anyone suggest a suitable replacement capacitor.

Many thanks
 
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I think you'll find its just a TV supression capacitor, if its connected across the mains terminals. I simply removed mine from my Hilti drill.
John :)
 
I think you'll find its just a TV supression capacitor, if its connected across the mains terminals. I simply removed mine from my Hilti drill.
John :)

Thanks John.

I suspect you are correct. It has two leads that run into the switch and the third is just wedged against the motor body.

So did yours explode as well. Not something that I had experienced before.
 
The capacitor on said Hilti was a rectangular thing, and a corner of it had blown clean off - obviously open circuit, though I've no idea why.
Anyway, Hilti couldn't provide a replacement and they recommend I just remove it - and that was maybe 10 years ago. The drill works perfectly - but I've never checked up on TV interference!
John :)
 
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ok, so removed the capacitor. Jigsaw doesn't work...

did you bridge the contacts on the switch?
 
As far as I recall, I just removed the capacitor, and left the switch alone.
It could be worth checking the switch operation ( mine was two pole) in case of burning there.
Post a pic if you can?
John :)
 

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