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Re: (ET) Cooked contactor

Well, worst case I will just install a normal contactor and have it triggered by the bad contactor. A bad contactor will work if the amount of curent through it is low. It can trip the bigger (single) contactor which can then close the R circuit. The interlock is maintained since the big contactor can't come on till the broken little one does. 

Still, I'd rather have a new pair.
Chris


RJ Kanary wrote:


      You would probably be better off obtaining from any Lister that may
have it, the instructions for replacing the Push Me Pull You Contactors 
with
the still available , later style Prestolite® contactors used in the later
model units. {Bill had these written up for his commercial accounts. NO, I
don't have them. <VBG>}
That's another way of saying that is what I'll be doing after using MY last
set. <G>
----- Original Message ----- From: "Chris Zach" <czach computer org> 
To: "Elec-trak list" <elec-trak cosmos phy tufts edu>
Sent: Sunday, August 08, 2004 7:13 PM
Subject: (ET) Cooked contactor




Well, I pulled the right pair of contactors on the E20 today. What a
pain in the rear; they had to run a wire between the contactor links,
making removal a serious pain.

However there is no doubt; the contactor is going bad. One could see
that the stud's insulator plastic is melting from the inside.

For the moment I have mounted it upside-down, moving the bad contactor
to the reverse side of things. Now it runs great in forward; lousy in
reverse.

Does anyone have a spare push-pull contactor set? It's two contactors
mounted together on a bracket. Anyone pulling apart their E20 for an
Alltrax job is welcome to let me know :-)

Chris


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