[SEL] Mag Help

Dave Mayfield wrl at gwltd.com
Fri Oct 8 19:42:08 PDT 2004


Thanks to all for the help on the mag, Today I took it all apart and cleaned
it very well, then made all new rubber insulator gaskets, but it back
together, seems fine now. But a new trouble has come up. See my next post.

Thanks
----- Original Message -----
From: "John Culp" <johnculp at chartertn.net>
To: "The SEL email discussion list" <sel at lists.stationary-engine.com>
Sent: Friday, October 08, 2004 6:55 PM,
Subject: Re: [SEL] Mag Help


> > My experience is that the magnets don't have much pull when in the
> > mag. This is from the Websters I've played with. Take the magnet out
> > and it should have good pull on a wrench. Hope this helps.
>
> BUT, a steel magnet will also instantly lose much of its "charge" when
> the magnetic circuit's broken, either by removing the magnets or
> removing the armature. The best way to charge it is with a big charger
> and pole pieces that allow charging them in the intact mag after final
> assembly. Alternatively, you can charge them and use "keepers" across
> the poles to maintain the magnetic circuit as the magnet's removed from
> the charger, letting the "keepers" be pushed off as the magnet slides
> onto the mag. I've used brake disk pads as keepers on my M's magnets,
> and the thing works.
>
> John Culp
> Bristol, Tennessee, USA
>
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