Re: Test Alternator Output

Posted by Bob on August 08, 2006 at 08:18:00 from (64.21.249.40):

In Reply to: Re: Test Alternator Output posted by Tim...Ok on August 08, 2006 at 07:17:16:

To clarify... the touch the metallic tool to the center of the alternator's rear bearing, which becomes magnetized by the magnetism from the alternators rotating field (rotor).

If the battery is low, and the alternator is charging heavily, there will be a strong magnetic pull.

The problem with this test is that if the battery is nearing full charge, the voltage regulator will cut back the current to the rotating field, and there will be MUCH less magnetism to detect because the alternator is not being required to charge as heavily.

In other words, high rotating field magnetism = high charging rate, lower charging rate, but still working properly = low magnetism.

Replies:

• Re: Test Alternator Output Tim...Ok 09:05:28 08/08/06 (0)

Add a Reply 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 ]