bob.verwey(at)gmail.com
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 Posted: Sat Jun 12, 2021 8:20 am Post subject: "Contactor Questions" now CONTACTOR AUTOPSY |
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So there I am rummaging thru 30 years worth of things I kept in case I need
them...hhhhmmmm
So a contactor ends up in my grubby paws, and I decide to strip it, 'cause
that's what BN would do! lol
It does not look great at first glance ( easily opened BTW by drilling out
the tiniest of rivets; something I suspect you will not be able to do with
a recently manufactured device).
[image: 1.PNG]
The upper part of the housing is surprisingly clean, and the pic makes the
contacts look worse than they are.
[image: 3.PNG]
Wear patterns on the contacts are clearly visible, but what I noticed is
that with the factory assembly process, the contacts are slightly off the
horizontal, so the plane of contact is not parallel with the contact
disc....accidental? I think not..when you tighten the outer nut the contact
turns until it hits the coil housing, unless you wedge something in there
to prevent turning.
[image: 4.PNG]
The contact disc is remarkably evenly worn on the other side (contact
side), as if the whole thing rotates in service..whoda thunk!!
It appears to be a starter contactor based on the 3 ohm coil.
This is the cleaned up contact disc, cleaned with a nylon brush and solvent
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