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  #1  
Old 08-29-2013, 03:02 PM
cschuldj cschuldj is offline
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Question layout of 12 relay convertible top

Can any one tell me if the ten relays are in the same position on the 12 relay system? And what are the two additional relays for? I do have the wiring diagram for the 12 relay system but am not sure where each is located.
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Old 08-29-2013, 03:10 PM
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Yes, the relays are in the same position. Here's a picture with the description of each relay. The two added ones are at the bottom.

John
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Old 08-29-2013, 03:24 PM
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Thanks John,
That will help my confidence while testing the system.
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Old 08-29-2013, 04:20 PM
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Prior to 1960, T-bird tops were partially 'manual'. In 1960 Ford added two relays because they needed two more contacts for the Tray, to make the system 'automatic'. - Dave
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Old 08-29-2013, 04:33 PM
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Actually the two relays were added because they originally designed the '60 top mechanism to use the same relay for the solenoids in both the open and close operation. That turned out to be problematic so they later added separate relays for each operation. I had a '60 with 10 relays before the update and it had a tendency to get confused when I tried to reverse the operation too quickly.

John
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Old 08-29-2013, 05:22 PM
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Quote:
Originally Posted by jopizz View Post
Actually the two relays were added because they originally designed the '60 top mechanism to use the same relay for the solenoids in both the open and close operation. ...
There is no confusion, John. You press the button one way for UP and the other way for DOWN. It's impossible for the toggle switch to be UP and Down at the same time. Those are totally different electrical paths in the control circuit.

'Confusion' can only come if a contact is not quite open or closed. Most contacts snap into position to eliminate that possibility. - Dave
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Old 08-29-2013, 05:31 PM
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I'm just relating what happened to me on the '60 I owned that only had 10 relays. I can only guess that the flow of fluid through the solenoids was compromised with only one relay for both up and down operations. Obviously Ford added the two relays later in the year for some reason. They wouldn't have spent the money to recall and retrofit all the early 60's if there wasn't a problem. I happened to have one where the owner didn't take it back to have it done.

John
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