RE: (ET) one speed, no power E20

[Klein Robert W NPRI <KleinRW Npt NUWC Navy Mil>]

If your tractor has sat dormant for a while, the open frame relays may 
have some surface corrosion that prohibits them from opening/closing as 
appropriate.  Can you exercise them manually (power disconnected)?

Robert W. Klein II
SSGN Deputy Technical Manager AWS/AWSS
1176 Howell Street
Newport, RI 02841
Phone: 401-832-1948
FAX:  401-832-7877
e-Mail: kleinrw npt nuwc navy mil


-----Original Message-----
From: Perry Cain [mailto:perry suppleye com] 
Sent: Thursday, June 02, 2005 1:46 PM
To: elec-trak cosmos phy tufts edu
Subject: RE: (ET) one speed, no power E20


When is the 4th relay, the "FW" relay supposed to kick in?  It never does. 
Also, it is off by default, correct?  The wires to it go underneath and 
center, not top and center, correct? (wires 40 and 49)  I do have a 
downloaded schematic, which I can barely read, as a result of my skill set 
in electronics.  Though that continues to improve....  

Relays; I will test all for alignment when I get home.

I am working on the wires, but they all appear to be connected.  There is 
not a lot of space up under the hood, so it is tedious.  

I am pretty sure the board (#4) is ok.  It looks almost new.  Someone with 
better skills then me will have to meter it, if all else fails.

(I knew when I posted my first request for help this would turn into 
another Alltrax debate.  That's why I mentioned in the first post that I 
had already done an Alltrax conversion.  That's cool, I love to hear the 
various
opinions.)   

Chris, thanks for taking the time to help me figure out my problem!!

Also, how do I contact Howard? (unrelated)

-----Original Message-----
From: Christopher Zach [mailto:czach computer org] 
Sent: Thursday, June 02, 2005 11:49 AM
To: Perry Cain
Subject: Re: (ET) one speed, no power E20

> I agree with everything you said.  But this tractor worked beautifully
last
> summer, and I just can't bring myself to gut it.  Hoping to figure it 
> out.

If it worked perfectly last summer then it is probably a simple loose 
wire. Do you have the Elec-trak wiring manual? I've got it at home, but 
it would probably be better for you to just get a copy.

It's probably not a mis-aligned relay however you might want to put it 
in neutral and touch the relay contacts with a pencil while in speed 4 
to see if they are all properly closed.

Chris



_______________________________________________
Elec-trak mailing list
Elec-trak cosmos phy tufts edu 
https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak