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

Shop Now

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

Garden Tractors Discussion Forum

Battery/Charging Problem

Welcome Guest, Log in or Register
Author 
Mario M.

05-27-2005 09:01:22




Report to Moderator

I hope someone can help, I have a John Deere 165 garden tractor which when I am cutting the grass with the cutting deck engaged the battery losses power after an hour or so. If I put a full charged battery in it works fine & if I disconnect the battery the motor still runs,but the deck stops. The motor will run all day long without a battery. I did a voltage test at the battery post with motor running & the reading was the same without motor running. Then I started the motor & disconnected the battery & did the same test at the cables the voltage reading went up & down with motor speed, but I was reading it with a pos.(+) ground. This is what I don't understand; the neg.(-) ground changed to pos.(+) ground.

[Log in to Reply]   [No Email]
stronics

05-28-2005 13:54:31




Report to Moderator
 Re: Battery/Charging Problem in reply to Mario M., 05-27-2005 09:01:22  
Mario,
As I think Bob says check the outer wires coming from the engine with a multi-meter set on AC. It should read 25-34 volts if the stator is good. This test does not hurt the stator. If that is in the range make sure the regulator is grounded really good, take it off and clean the area it sets on and itself.
Then check at the battery again. If not in the range we talked about it is the regulator.
David

[Log in to Reply]  [No Email]
stronics

05-28-2005 05:10:11




Report to Moderator
 Re: Battery/Charging Problem in reply to Mario M., 05-27-2005 09:01:22  
Mario,
That is not enough voltage to keep the battery up for sure. With the engine running pretty fast without the deck on it should be about 13.8-14.5.
Two things could be happening.
Battery going bad sucking up the charge or the diode breaking down. Usually they just go out though and won't charge.
Easist way, do you have an exchange battery you could try? If same condition exist then the diode or the alternator is bad.
David

[Log in to Reply]  [No Email]
Mario M.

05-28-2005 06:17:44




Report to Moderator
 Re: Battery/Charging Problem in reply to stronics, 05-28-2005 05:10:11  
David I do not beleive it is the battery becuase I have been useing two batteries to cut my lawn, when one runs out I replace it with full charged one. Is there any sure fire way to test if it is the regulator or alternator. I would hate to change the regulator & then find out it was the alternator. The electronic parts are not returnable. (regulator around $100)



[Log in to Reply]  [No Email]
stronics

05-27-2005 17:09:23




Report to Moderator
 Re: Battery/Charging Problem in reply to Mario M., 05-27-2005 09:01:22  
Mario,
With the pto off and the engine running what is the voltage at the battery?
Now with the deck on what does it read?
If it drops below 12.6 the electric clutch it draining the battery. Let us know.
David



[Log in to Reply]  [No Email]
Mario M.

05-27-2005 17:41:10




Report to Moderator
 Re: Battery/Charging Problem in reply to stronics, 05-27-2005 17:09:23  
Hi stronics, The voltage at the battery engine running it reads 12.62 & I understand it should read around 14.5. With deck on it drops to 12.36& the longer it runs with deck on the lower voltage gets. Like said in my first message I took a reading without the battery & the voltage went up & down with the speed of the motor. Found out thats a NO NO!



[Log in to Reply]  [No Email]
Bob

05-27-2005 11:18:09




Report to Moderator
 Re: Battery/Charging Problem in reply to Mario M., 05-27-2005 09:01:22  
It is NEVER a good idea to troubleshoot ANY alternator system by disconnecting the battery, and removing the load from the alternator.

Have you checked the 20 Amp fuse in the harness near the regulator?

The reversed polarity reading you are getting could very well indicate a bad diode in the rectifier/voltage regulator unit, but you can't necessarily rely on any voltage reading made with no battery load on the regulator.

Regulator is part #M97348, @ $100.00.

[Log in to Reply]  [No Email]
Mario M.

05-27-2005 15:11:27




Report to Moderator
 Re: Battery/Charging Problem in reply to Bob, 05-27-2005 11:18:09  
One more thing Bob, I have three wires coming from the motor which I believe are coming from the alternator, two are black & one green . The green one seems to be a ground wire. How would I check power from the alternator safely.

Thanx



[Log in to Reply]  [No Email]
jake3

05-28-2005 08:33:59




Report to Moderator
 Re: Battery/Charging Problem in reply to Mario M., 05-27-2005 15:11:27  
The stator windings can be tested by the use of a volt meter set for AC. The output will in the 25V range. In most cases the 2 reds will connected to the regulator converting into DC 14.5 V, the green should be the kill. Which engine is used might be able find a diagram.



[Log in to Reply]  [No Email]
Mario M.

05-29-2005 08:53:17




Report to Moderator
 Re: Battery/Charging Problem in reply to jake3, 05-28-2005 08:33:59  
jake3 the motor is a Kawasaki FB460V.

Thank You very much.



[Log in to Reply]  [No Email]
Mario M.

05-27-2005 14:28:49




Report to Moderator
 Re: Battery/Charging Problem in reply to Bob, 05-27-2005 11:18:09  
Thanx Bob for the info. & advice, I am learn as I go. I checked for the fuse but could not find one. Bought the JD used & alot of the wiring looked like it was cut & repaired. I gess a wiring diagram would help. I did voltage reading at the battery post agan at start & then 1/2Hr later & reading was lower.

Agan Thank You



[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