Re: O.K., DUMB QUESTIONS!

Posted by Janicholson on October 02, 2005 at 07:14:05 from (66.173.50.117):

In Reply to: Re: O.K., DUMB QUESTIONS! posted by El Toro on October 02, 2005 at 03:58:35:

I love digital volt meters. Some of them are perfection (FLUKE,Tripplett, brands, and others) Some however do poorly on generator systems because they take samples that are averaged, these samples may be detecting millisecond spikes from the vibrating contacts in the VR, and the generator commutator/brushes light arcing. This results in readout variation over a wide range, the numbers keep changing. An accurate analog gauge may serve better (I check my analog meter by comparing it to a digital meter on the battery when shut off).

6.8 to 7.2 on six volt systems 14.2-14.6 on 12v. should do it. The amp meters on alternator equipped tractors are often upgraded to 60 amp capability, or more. These show less needle deflection on a fully charged battery than the older 20 or thirty amp meters. Alternators, and their electronic voltage regulators, are also better at fine tuning the charge rate when the battery is full.
As stated, if the battery needs water all the time, it may be overcharging. If the needle shows 10 amps or more charge rate after a half hour of operation and the voltage is correct the battery may be on its way out.
Good luck with it,
JimN

Follow Ups:

• Re: O.K., DUMB QUESTIONS! El Toro 08:57:51 10/02/05 (0)

Post a Followup Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

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 ]