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John Deere Tractors Discussion Forum
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Re: Relay wiring

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Author  [Modern View]

12-22-2013 11:41:06

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All of the 55 series tractors were field modified with this kit mentioned above.
There is a lawn mower kit that I used to use for the first relay in the 55 series type set up. You can get it for an STX38.

It has all the wires and a base and a relay for around $20. I used to keep at least one on my service truck. Even when I did not work for JD any more.

I used that when all the original wiring was gone or bad.

I used to do this all the time to any JD 2030 - 2950.

A 55 is totally different. the start switch signal goes through the fuse panel 3 times.

BE SURE your neutral start switch works.
Do not use this solenoid on a row crop 4030 -4840. The solenoids for those tractors have 4 lugs and must be grounded through the neutral start switch.

A three pole switch on a 4230 will get you run over. Just don't do it please. I took so many of those things off it would make your head spin. I used those perfectly good 3 poles on the smaller tractors.

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Tx Jim

12-23-2013 04:54:07

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 Re: Relay wiring in reply to DanTheJDMan, 12-22-2013 11:41:06  
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I left the JD dealership right before the introduction 55 series. Could you please briefly explain how the start switch signal travels through the fuse panel 3 times and is that true for both Waterloo & Mannheim built tractors? I think you must be referring to Mannheim only as the wiring diagram for Mannheim tractor with a cab reminded me of a "spider web". The reason I ask is I've owned a 4255 since '93.


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12-23-2013 09:15:11

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 Re: Relay wiring in reply to Tx Jim, 12-23-2013 04:54:07  
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First of all we are not talking about apples and apples.

A 4255 is a Waterloo tractor............. This is not what we were talking about.

We were talking about the 2000 size not the 4000 size row crop tractors.

All the small 2000 tractors were modified from with the start soleniod in the field and if you look there is a seperate electrical section in addition to the original TM.

They drive you crazy because there are wires cut off and you think somebody has been in there jack legging some fix but it is the way they are supposed to be.

I'm not sure about the strart soleniod on the 4255. If it is a 4 pin it needs to be replaced with a 4 pin. These machine could use the tach for some logic. I know that the flashers for the turn signal and the hazard lights gets its (Flash) through the tach.

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Tx Jim

12-23-2013 10:12:32

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 Re: Relay wiring in reply to DanTheJDMan, 12-23-2013 09:15:11  
Apples or oranges here is what you stated and is the reason in my asking if Waterloo tractors were included in your statement and I'll quote you. You didn't state all 55 series "UTILITY tractors"!

[/quote]All of the 55 series tractors were field modified with this kit mentioned above. \[/quote]

You also failed to explain how the start circuit on a utility tractor travels 3 different times through the fuse board!!!

Merry Christmas,Jim

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12-22-2013 11:53:19

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 Re: Relay wiring in reply to DanTheJDMan, 12-22-2013 11:41:06  
thanks for a quick answer, will give it a try, sick of jumping my 2750


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12-22-2013 14:26:25

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 Re: Relay wiring in reply to Dharmabumster, 12-22-2013 11:53:19  
The solenoid is just like jumping the starter with a screw driver.


The difference of the solenoid is that it still goes through the neutral start switch which is under the floor on the front of the rockshaft housing and is a bear to get to an a cab tractor.

They have to be shimed to the right depth!!!!!!!!!!!!!!!!!!!

I have used this same set up on late model MFs that would not start.
This post was edited by DanTheJDMan at 14:28:19 12/22/13.

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