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

Discussion Forum

Order Ford 601 Parts Online

1961 Ford 601/641 6V charging question

Welcome Guest, Log in or Register

Author

Joe Trinkley

02-20-2003 12:52:06

Report to Moderator

I've read that you can check the alternator right off the battery, 12 Volts when off and 14.5 when the motor is running, but can you do the same with the 6v system. 6v when off and ? when the motor is running?

Thanks again for your replys people, you all have been very helpful with my couple questions and appreciate forums like these!

Joe

[Log in to Reply] [No Email]

Joe S.

02-22-2003 05:54:32

Report to Moderator

Re: 1961 Ford 601/641 6V charging question in reply to Joe Trinkley, 02-20-2003 12:52:06

Hey Joe, I have a 641 6V and had a problem that sounds similar to yours. My problem turned out to be with the ground connection on the tractor and not the battery it's self. I went through and cleaned and tightened my connections and that solved my problems with the battery going dead. Apparently I had a high resistance ground connection and the battery wouldn't charge properly. Luck. Joe

[Log in to Reply] [No Email]

raytasch

02-20-2003 14:53:19

Report to Moderator

Re: 1961 Ford 601/641 6V charging question in reply to Joe Trinkley, 02-20-2003 12:52:06

Joe, Yep, the voltages expected on a 6 volt system are about half of what you would expect on a 12 volt system. Static non running you should see slightly over 6 V. With the engine running about half throttle you should see somewhere around 7 volts. If your system is stock you have a generator instead of an alternator and generators do not put out too much at idle or low speed.
ray

[Log in to Reply] [No Email]

Joe Trinkley

02-20-2003 13:55:11

Report to Moderator

Re: 1961 Ford 601/641 6V charging question in reply to Joe Trinkley, 02-20-2003 12:52:06

Ok here's the test results, when i went to start it up it read 6v, after i started it and revved er up it read 6.19-6.21 and stayed there the duration of the test, probably 30 minutes or so...so I guess the alternator is good right? and the second question is, if it sits for a week the battery goes dead dead again what do i do?, is that even possible with a 'good' brand new battery?

Thanks guys

[Log in to Reply] [No Email]

Phil (VA)

02-21-2003 11:10:54

Report to Moderator

Re: Re: 1961 Ford 601/641 6V charging question in reply to Joe Trinkley, 02-20-2003 13:55:11

6.2 volts more or less when "revved up" is NOT enough. It is not charging properly. Could be generator or could be voltage regulator. By revved up, I'm assuming you mean around 1500 RPM. It should be closer to 7 volts, even 7.1 in that circumstance.

[Log in to Reply] [No Email]

Joe Trinkley

02-20-2003 13:57:42

Report to Moderator

Re: Re: 1961 Ford 601/641 6V charging question in reply to Joe Trinkley, 02-20-2003 13:55:11

Oh and just out of curiosity I tested the three wires that are coming off the generator and none of them are reading much (.? and .0?) ...so how does it keep the battery charged?

hmm, still learning

[Log in to Reply] [No Email]

Tim Dalrymple

03-04-2003 13:56:45

Report to Moderator

Re: Re: Re: 1961 Ford 601/641 6V charging question in reply to Joe Trinkley, 02-20-2003 13:57:42

The voltage has to be around 7.2 volts when charging. A charged 6 volt battery can read 6.2 volts. Also consider your meter. If it is not a good quality meter, (ie..professional type), it may not be all that accurate.

The generator should be generating more than 7.2 volts before it gets to the regulator. It is the job of the regulator to clamp the voltage between a preset value. I would suspect that your brushes are worn and the commutating rings need to be cleaned. It could be as simple as the springs that push the brushes agains the slip rings are gummed up with dirt and grease. You can check this with either an ohmmeter.

If you need more help, email me. We rebuild alternators and generators all the time in my shop.

[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