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Fixing an overheated ultrasonic cleaner

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Fixing an overheated ultrasonic cleaner

Postby Jubbles » Sun Dec 04, 2016 10:21 pm

So a few minutes ago I was a very intelligent human being and chose to try and speed up the cleaning process of some ancient .303 cases I found when the Kingsbury ranges were being re-furbished and the land torn up.

Using my hyper intelligence I mixed boiling water from the kettle with Seaclean and set the CD-7920 ultrasonic cleaner to go for ten minutes, about 7-8minutes in it suddenly turns off and won't restart.

I can only assume I have proper buggered it. Has anyone else descended to this level of stupidity before? Will it cool down and restart or have I just pissed £60 away?

Ps. The .303 cases came out very shiny and copper coloured.
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Re: Fixing an overheated ultrasonic cleaner

Postby flintlok » Sun Dec 04, 2016 10:27 pm

It should cool down and restart. Your triggered the themal trip made to protect the electronics.
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Re: Fixing an overheated ultrasonic cleaner

Postby Jubbles » Mon Dec 05, 2016 11:15 am

Tried again after it had cooled down, still no function. I think I killed it
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Re: Fixing an overheated ultrasonic cleaner

Postby Hornet 6 » Mon Dec 05, 2016 1:28 pm

You killed it, no thermal overload fitted to most cheaper units.
Brass shiny copper coloured, that's not right either, too much sea clean by the sound of it.

Neil. :)
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Re: Fixing an overheated ultrasonic cleaner

Postby flintlok » Mon Dec 05, 2016 2:04 pm

Alas, RIP...... :( :( :(
The faster I go, the older I get.

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Flintlok, I think you're dead right....."The Dogge"

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Re: Fixing an overheated ultrasonic cleaner

Postby Jubbles » Mon Dec 05, 2016 11:58 pm

The cases have been buried in the ground since 1944 so I imagine that the Brass has tarnished and caused this copperish colour.

Interestingly I found a 1944 Boxer primed case. No idea who was making such cases at the time.
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Re: Fixing an overheated ultrasonic cleaner

Postby flintlok » Tue Dec 06, 2016 1:58 am

Jubbles wrote:Interestingly I found a 1944 Boxer primed case. No idea who was making such cases at the time.


I imagine that the cases were American made. Boxer primers have been the standard here forever. Until recently, every European piece of military brass that I've seen has been Berdan primed. Alas, I don't reload Berdan primed military brass. I've tried and it's way too much work. Such brass went to the scrap metal dealer.
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Re: Fixing an overheated ultrasonic cleaner

Postby Hornet 6 » Tue Dec 06, 2016 9:28 am

Jubbles wrote:The cases have been buried in the ground since 1944 so I imagine that the Brass has tarnished and caused this copperish colour.



The rose/copper colour is also caused by overdoing the acid in the cleaner, i.e. seaclean or citric acid in dish soap.

Neil. :)
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