Farm Equipment - D15 charging system?

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D15 charging system?

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Topic: D15 charging system?

Posted By: Tracy Martin TN
Subject: D15 charging system?
Date Posted: 26 Mar 2012 at 7:22pm

My D15 wouldn't start. Nothing at all, tried to jump thru solenoid, barely a buzz, battery flat. I charged the battery,started fine. When cranking it will show a discharge. When running will not show charging. Is it the generator or voltage regulator? How do I check it to find out? Thanks Tracy Martin

Replies:

Posted By: Brian Jasper co. Ia
Date Posted: 26 Mar 2012 at 8:01pm

You can test the gen easily. Remove the belt, disconnect the wires, and run battery voltage to the A terminal. It should spin like a motor. While motoring, ground the F terminal to the case. It should slow down, but continue to motor. Load test all of your wires by using them in a circuit to power a headlight bulb. If the wires and gen pass, the regulator is all that's left.

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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford

Posted By: Tracy Martin TN
Date Posted: 26 Mar 2012 at 8:39pm

Brian, I will try that method. Thanks for the help. Tracy Martin

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No greater gift than healthy grandkids!

Posted By: Coke-in-MN
Date Posted: 26 Mar 2012 at 8:56pm

http://chevy.oldcarmanualproject.com/electrical/58dr5210/index.html" rel="nofollow - http://chevy.oldcarmanualproject.com/electrical/58dr5210/index.html

http://www.film.queensu.ca/cj3b/Regulator.html" rel="nofollow - http://www.film.queensu.ca/cj3b/Regulator.html

http://www.bowersflybaby.com/tech/spark2.html" rel="nofollow - http://www.bowersflybaby.com/tech/spark2.html

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Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.

Posted By: D-17_Dave
Date Posted: 26 Mar 2012 at 9:21pm

Never done it like Brian described, I always run the engine at half or so throttle and ground the F or Field terminal. You should see the amp meter jump to full charge. This too shows the generator is good or not. 90% of the time I find either a stuck brush or corroded brush holder or a bad regulator. Most of the new regulators are china made and the metal rivets on the bottom rust soon after installing it and it fails. IF you determine a faulty regulator I'd pop the cover and buff the points and check them for sticking and so forth before replacing. You might get lucky and keep a better one than you can buy.

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Yea, I can fix that.....

Posted By: Coke-in-MN
Date Posted: 27 Mar 2012 at 5:29pm

Here is everything you need to know on generators - delco service bulletin

http://chevy.oldcarmanualproject.com/electrical/49dr324/1g1001.htm" rel="nofollow - http://chevy.oldcarmanualproject.com/electrical/49dr324/1g1001.htm