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A-C 5040 ignition switch diagram

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=141340
Printed Date: 02 Apr 2025 at 12:31am
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Topic: A-C 5040 ignition switch diagram
Posted By: Countryboy92
Subject: A-C 5040 ignition switch diagram
Date Posted: 11 Aug 2017 at 3:46pm
Does anyone have a diagram for how the ignition switch for a 5040 should be wired? Picked up an old 5040 that had the switch removed, ordered a new one and need to install it right. Thanks in advance.



Replies:
Posted By: DougS
Date Posted: 12 Aug 2017 at 6:01am
If I were there and looking at it, I could help.  If you could tell me where the individual wires go I might be able to help. All I can say for now is the wire that is hot all the time goes to the common terminal on the switch.
 
 
ETA: I went over to the Allis Chalmers Parts Book and found a drawing.  There are about six wires that go the switch, but the drawing is in black and white, so it is worthless as a "how to" source.
 


Posted By: Gatz in NE
Date Posted: 12 Aug 2017 at 9:06am
Had a 5040 at one time, but sold it and the Op & Service manuals went with it.
Those manuals were very good.  I think these are still available from Jensales

http://www.jensales.com/categories/allis-chalmers-agco-allis/5040.html" rel="nofollow - http://www.jensales.com/categories/allis-chalmers-agco-allis/5040.html

This might help a little..




Posted By: Countryboy92
Date Posted: 14 Aug 2017 at 1:38am
Thank you everyone.


Posted By: Sam T-Ga
Date Posted: 14 Aug 2017 at 6:07pm
I have operators manual with wiring diagram, now if I can figure how copy and post. I will send on another post.


Posted By: Sam T-Ga
Date Posted: 14 Aug 2017 at 6:38pm


Posted By: Sam T-Ga
Date Posted: 14 Aug 2017 at 6:40pm


Posted By: Sam T-Ga
Date Posted: 14 Aug 2017 at 6:41pm


Posted By: Sam T-Ga
Date Posted: 14 Aug 2017 at 6:44pm
Well I did get it on here. You may have to turn your computer upside down to look at the last.  It was the center pages in operators manual. The key switch is also the light switch.


Posted By: Sam T-Ga
Date Posted: 15 Aug 2017 at 10:03am
Did these help?



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