Yesterday's Tractor Co. Parts for Farm Tractors - Compare our Prices!
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 9N,2N,8N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   Traditional YT Forum ViewClassic View   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Wiring a 641 Ford - Accessory Question


 
Post new topic    
View previous topic :: View next topic  
Author Message
RTR
Long Time User


Joined: 29 Sep 2010
Posts: 1288
Location: Central Alabama

Report to Moderator

PostPosted: Sat Sep 01, 2012 8:20 am    Post subject: Wiring a 641 Ford - Accessory Question Reply to specific post Reply with quote

I am adding some 12 volt electric "air horns" to my 'reconditioned/restored' Ford 641 tractor. I have a question about how I should hook up the wiring regarding the diagram below. I feel like I should use an inline fused wire, and hook it to the junction block as per my drawing on the diagram.

Please provide me with input, thoughts, and concerns. THANKS!

 
Back to top
View user's profile
awhtx
Tractor Guru


Joined: 16 Jan 2002
Posts: 5053
Location: Lampasas, TX

Report to Moderator

PostPosted: Sat Sep 01, 2012 8:34 am    Post subject: Re: Wiring a 641 Ford - Accessory Question Reply to specific post Reply with quote

You're good to go as long as you hook it to the Battery side of the junction block. The weak key switch would probably not be able to handle the current requirements for electric horns.
 
Back to top
View user's profile
Sean in PA
Tractor Expert


Joined: 27 Feb 2008
Posts: 2919
Location: Southeast PA

Report to Moderator

PostPosted: Sat Sep 01, 2012 9:03 am    Post subject: Re: Wiring a 641 Ford - Accessory Question Reply to specific post Reply with quote

First, you probably know this and just forgot to mention it or put it in your diagram, you'll want to add some kind of switch (spring loaded push button or something similar) or the horns will be on all of the time with that diagram. Second, if you want to keep kids from wearing down your battery by playing with the horns when you're not around, you could install a relay that's controlled by a switch that's run off of the key switch, then the secondary side of the relay would connect the battery side of the terminal block to the horns via a fused line.
 
Back to top
View user's profile
RTR
Long Time User


Joined: 29 Sep 2010
Posts: 1288
Location: Central Alabama

Report to Moderator

PostPosted: Sat Sep 01, 2012 10:48 am    Post subject: Re: Wiring a 641 Ford - Accessory Question Reply to specific post Reply with quote

You are correct. I have a push button installed on the dash. Therefore, I guess the wiring diagram would read "To Horn Switch" instead of "To Horn".

Now that that has been said.....do I have the diagram drawn correctly?

 
Back to top
View user's profile
Sean in PA
Tractor Expert


Joined: 27 Feb 2008
Posts: 2919
Location: Southeast PA

Report to Moderator

PostPosted: Sat Sep 01, 2012 12:41 pm    Post subject: Re: Wiring a 641 Ford - Accessory Question Reply to specific post Reply with quote

Yes, the diagram is correct for a basic circuit to run the horn, but as I said, the horn will operate with the key switch in the off position, so there is a potential for someone, like kids, to run the horn when the key is off and for the battery to be run down as a result. If you have no worries in that regard, then it is fine as is.
 
Back to top
View user's profile
NoNewParts
Long Time User


Joined: 19 Jan 2010
Posts: 1322
Location: WNY

Report to Moderator

PostPosted: Sun Sep 02, 2012 3:28 am    Post subject: Re: Wiring a 641 Ford - Accessory Question Reply to specific post Reply with quote

rtr wrote:
(quoted from post at 13:20:54 09/01/12) I am adding some 12 volt electric "air horns" to my 'reconditioned/restored' Ford 641 tractor. I have a question about how I should hook up the wiring regarding the diagram below. I feel like I should use an inline fused wire, and hook it to the junction block as per my drawing on the diagram.

Please provide me with input, thoughts, and concerns. THANKS!


sure, it will work,
however, on big amp draw items like horns, a relay is a good idea.
simple horn-relay diagram here: (needs fuses/fusible links added)
http://www.secondchancegarage.com/public/133.cfm
 
Back to top
View user's profile
RTR
Long Time User


Joined: 29 Sep 2010
Posts: 1288
Location: Central Alabama

Report to Moderator

PostPosted: Sun Sep 02, 2012 8:14 am    Post subject: Re: Wiring a 641 Ford - Accessory Question Reply to specific post Reply with quote


Well if you have the time (and know exactly how it should go), take my wiring diagram and draw in what I need to complete the wiring for the horn USING A RELAY & FUSE SYSTEM.

I have a good idea of how it should go, but would like one of you experts to draw it out so I know I am right!

THanks again.
 
Back to top
View user's profile
Sean in PA
Tractor Expert


Joined: 27 Feb 2008
Posts: 2919
Location: Southeast PA

Report to Moderator

PostPosted: Sun Sep 02, 2012 10:38 am    Post subject: Re: Wiring a 641 Ford - Accessory Question Reply to specific post Reply with quote

Here you go:


 
Back to top
View user's profile
RTR
Long Time User


Joined: 29 Sep 2010
Posts: 1288
Location: Central Alabama

Report to Moderator

PostPosted: Sun Sep 02, 2012 1:47 pm    Post subject: Re: Wiring a 641 Ford - Accessory Question Reply to specific post Reply with quote

Sean in PA wrote:
(quoted from post at 23:38:01 09/02/12) Here you go:



Thank you sooo much!!! Nice job
 
Back to top
View user's profile
RTR
Long Time User


Joined: 29 Sep 2010
Posts: 1288
Location: Central Alabama

Report to Moderator

PostPosted: Mon Nov 12, 2012 6:14 pm    Post subject: Re: Wiring a 641 Ford - Accessory Question Reply to specific post Reply with quote

THANK YOU ALL GUYS!!!

Just wanted to say that I've gotten everything all wired up, and before I try to start the tractor tomorrow for the first time, I'd like to figure out why my gauge lights don't work. Please see my video at this link for more info.

http://www.youtube.com/watch?v=IjOfml6qFvE&feature=plcp
 
Back to top
View user's profile
RTR
Long Time User


Joined: 29 Sep 2010
Posts: 1288
Location: Central Alabama

Report to Moderator

PostPosted: Mon Nov 12, 2012 8:31 pm    Post subject: Re: Wiring a 641 Ford - Accessory Question Reply to specific post Reply with quote


Any idea what it could be?!
 
Back to top
View user's profile
Sean in PA
Tractor Expert


Joined: 27 Feb 2008
Posts: 2919
Location: Southeast PA

Report to Moderator

PostPosted: Tue Nov 13, 2012 5:39 am    Post subject: Re: Wiring a 641 Ford - Accessory Question Reply to specific post Reply with quote

Well, those are not the original type of gauges for that tractor, so we don't know how the lights in them are supposed to work exactly, except for the basic electrical concepts of the lights in the gauges need to be connected to 12 volts on one side and good ground on the other to light up.

Was there any kinfd of instructions or schematic diagrams that came with the new gauges? If so ,posting them woulg give us a better idea of what you have.

I know you said in the video that you don't have a test light available, but you appear to have plenty of wire available, Have you tried connecting a wire from the hot side of the battery directly to one of the gauges while the other side of the gauge is connected directly to the negative terminal of the battery to see if it will light up? That will bypass all of the other wiring, and the light switch and concentrate on testing exactly how the gauges need to be connected for the lights to work.

Once you've got that figured out, then you can move your test wire from the hot side of the battery to the hot side of the light switch to see that you've got power to the switch, and then move it to the switched side of the switch to see if you get power there when you turn the switch on.
 
Back to top
View user's profile
RTR
Long Time User


Joined: 29 Sep 2010
Posts: 1288
Location: Central Alabama

Report to Moderator

PostPosted: Tue Nov 13, 2012 7:44 am    Post subject: Re: Wiring a 641 Ford - Accessory Question Reply to specific post Reply with quote

I did try hooking up a hot wire directly from the light terminal to the battery hot and got a spark


Sean in PA wrote:
(quoted from post at 18:39:44 11/13/12) Well, those are not the original type of gauges for that tractor, so we don't know how the lights in them are supposed to work exactly, except for the basic electrical concepts of the lights in the gauges need to be connected to 12 volts on one side and good ground on the other to light up.

Was there any kinfd of instructions or schematic diagrams that came with the new gauges? If so ,posting them woulg give us a better idea of what you have.

I know you said in the video that you don't have a test light available, but you appear to have plenty of wire available, Have you tried connecting a wire from the hot side of the battery directly to one of the gauges while the other side of the gauge is connected directly to the negative terminal of the battery to see if it will light up? That will bypass all of the other wiring, and the light switch and concentrate on testing exactly how the gauges need to be connected for the lights to work.

Once you've got that figured out, then you can move your test wire from the hot side of the battery to the hot side of the light switch to see that you've got power to the switch, and then move it to the switched side of the switch to see if you get power there when you turn the switch on.

 
Back to top
View user's profile
RTR
Long Time User


Joined: 29 Sep 2010
Posts: 1288
Location: Central Alabama

Report to Moderator

PostPosted: Tue Nov 13, 2012 8:38 am    Post subject: Re: Wiring a 641 Ford - Accessory Question Reply to specific post Reply with quote


I changed a visibly good fuse in the switch as now they all work.
 
Back to top
View user's profile
Display posts from previous:   
Post new topic    Yesterday's Tractors Forum Index -> Ford All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
TRACTOR   PARTS TRACTOR   MANUALS
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F).  Expedited shipping available, just call!  Most prices for parts and manuals are below our competitors.  Compare our super low shipping rates!  We have the parts you need to repair your tractor.  We are a Company you can trust and have generous return policies!   Shop Online Today or call our friendly sales staff toll free (800) 853-2651.

YT Home  |  Forums Home

Copyright © 1997-2014 Yesterday's Tractor Co.

Powered by phpBB © 2001, 2005 phpBB Group

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters