Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

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

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Discussion Forum
:

Battery Overcharging

Welcome Guest, Log in or Register
Author 
Don VD

05-01-2001 07:46:37




Report to Moderator

66' MF 135, Got my tractor last month and the
battery was shot so I went to TSC and got a new
one. Put it in and after running the tractor for 2
hours I noticed it had battery acid all over the
engine(wasted my new paint job), washed it off and
checked the water level in the battery, it looked
alright so I assumed they overfilled it at TSC.
Well so as to not ruin my engine cases new paint
job futher, I put a tee shirt around the battery
and ran it for a few hours. It was wet again. But
the battery wasn't even the slightest bit hot. On
the ampmeter on the dash it doesn't appear to be
overcharing, dead center between + -. Checked my
owners manual and the wiring diagram indicates it
has an alternator and regulator. I looked at the
alternator and its brand new, looks like the
dealer replaced it before I bought it. Is there
any way to turn down the charging level with the
regulator, what can I do.

[Log in to Reply]   [No Email]
Bob

05-02-2001 09:12:56




Report to Moderator
 Re: Battery Overcharging in reply to Don VD, 05-01-2001 07:46:37  
It is certainly overcharging! It will ruin the battery, and the gernerator/alternator too.

First you have to determine if it has a gernerator or alternator. If it is a '66 it has a generator, unless it has been converted to an alternator. The gen is perfectly cylinderical, with a remotely mounted (under the dash) regulator. An alternator looks different, (like on a car), and most likely has an internal regulator. The regulator in either case is most probably the problem.

Let us know which system you have.

[Log in to Reply]  [No Email]
Don VD

05-03-2001 06:44:51




Report to Moderator
 Re: Re: Battery Overcharging in reply to Bob, 05-02-2001 09:12:56  
It a generator, following an email, from another
forum member I found the regulator, and measured
the voltage across the battery when running and it
was over 14V. I tried adjusting the regulator
screw to get 13.6 - 13.9 V but its very non-linear
and jumps from 13 to 14 almost immediately with
just a very minor screw adjustment. I tried for an
hour and the best I could do was 13V. Any movement
of the screw past 13V and it drifts up to 14V,
Seems very fickle. The regulator and generator
look to be new. I guess I'll run it at 13V and
hope it doesn't drain the battery. Thanks for the
followup, if you have any other info I'd
appreciate it.

[Log in to Reply]  [No Email]
Bob

05-04-2001 18:45:21




Report to Moderator
 Re: Re: Re: Battery Overcharging in reply to Don VD, 05-03-2001 06:44:51  
Does the regulator look new? It may be bad, also ALL the connections have to be CLEAN including where the regulator grounds. If the reg is used, I would pull it off, and carefully clean all the ralay contacts inside with 600 paper,a nd then clean with alcohol to remove the grit.

You need to measure the voltage with a digital meter, the analog's ae accurate enough.



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


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