TRACTOR PARTS Allis Chalmers Case & David Brown Farmall & International Ferguson Ford & New Holland John Deere Massey Ferguson Massey Harris Minneapolis Moline Oliver & Cockshutt Kubota / Yanmar

TRACTOR MANUALS

Allis Chalmers	Case	Farmall IH	Ford 8N,9N,2N	Ford
Ferguson	John Deere	Massey Ferguson	Minn. Moline	Oliver

Farmall & IHC Tractors Discussion Forum

Farmall C Ammeter Question

Welcome Guest, Log in or Register

Author

Robert Lorencz

02-07-2006 08:46:28

Report to Moderator

Hi
I am in the process of rewiring my 1950 C, gonna convert it to 12v. Got all the old wiring off, now I can't tell which is + post on ammeter. Can't read it from the back, can't get ammeter out (without breaking something). So....looking at the back of the ammeter right side up, which post is positive, left or right?
I'm hoping someone will have one sitting on their desk and just pick it up and tell me!

Thanks
Robert

[Log in to Reply] [No Email]

kfox

02-07-2006 09:51:06

Report to Moderator

Re: Farmall C Ammeter Question in reply to Robert Lorencz, 02-07-2006 08:46:28

Howdy Robert, I have a amp meter off of a H in my hand right now. It appears to be origional, and never changed out. The part # on the face is 42383-DA. Looking at it from the rear, the left post is -, and right side is +. I think about all letter series Farmalls used the same gauge.
ken fox

[Log in to Reply] [No Email]

Robert Lorencz

02-07-2006 10:12:13

Report to Moderator

Re: Farmall C Ammeter Question in reply to kfox, 02-07-2006 09:51:06

Hey kfox!

You da man! I was gonna follow the advice of John and KS and use the trail and error method, now you just took out the error part!

Thanks for looking it up for me!

Robert

[Log in to Reply] [No Email]

Janicholson

02-07-2006 09:46:46

Report to Moderator

Re: Farmall C Ammeter Question in reply to Robert Lorencz, 02-07-2006 08:46:28

John T has said all that is needed except one item.
If you are using an laternator (not stated in post) the original amp meter is probably too small. I would replace it with a meter that reads about 10% over alternator output (no less than a 50 amp reading in both directions.
JimN

[Log in to Reply] [No Email]

John T

02-07-2006 09:17:28

Report to Moderator

Re: Farmall C Ammeter Question in reply to Robert Lorencz, 02-07-2006 08:46:28

Robert, In addition to what KS told you, what I refer to as an ammeters battery SUPPLY side terminal has but ONE wire, and thats to the hot ungrounded battery post, often via a wire to where the big battery cables attaches to a starter switch. The ammeters other LOAD terminal is what feeds loads like lights and ignition PLUS wires to the BAT terminal on a Cutout Relay or a Voltage Regulator, so it may have 2 or more wires.

Nowwwww www, if say an ammeter were originally configured for Positive ground and the tractor got switched to Negative ground, the ammeter leads need to be reversed otherwise it will register bass ackwards.

Just get it wired so if the lights are switched on NOT running she swings to - discharge and then running it swings over to + charge. BUTTTTT have the lights and ignition loads wired on the same ammeter terminal the BAT terminal on a relay or VR is wired also.

John T

[Log in to Reply] [No Email]

Robert Lorencz

02-07-2006 10:08:15

Report to Moderator

Re: Farmall C Ammeter Question in reply to John T, 02-07-2006 09:17:28

Yeah John, you and KS have the solution. I just thought the little beggars were labeled. I have a diagram so I know which wires go together, I just wanted to get it right first crack, what with my luck! So....in my infinite wisdom, I will hook it up opposite to my first thinking and I will be right!!!!! !!!!!
Thanks to all for the help.

[Log in to Reply] [No Email]

KS Farms

02-07-2006 09:34:20

Report to Moderator

Re: Farmall C Ammeter Question in reply to John T, 02-07-2006 09:17:28

Thanks for the addition. I was probably a little to vague with my response.

[Log in to Reply] [No Email]

KS Farms

02-07-2006 08:54:16

Report to Moderator

Re: Farmall C Ammeter Question in reply to Robert Lorencz, 02-07-2006 08:46:28

Just hook it up and turn on the lights, if it shows that it is charging then it's backwards. It won't hurt it.

[Log in to Reply] [No Email]

[Options] [Printer Friendly] [Posting Help] [Return to Forum] [Log in to Reply]

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home | Forums

Copyright © 1997-2023 Yesterday's Tractor Co.
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

Website Accessibility Policy