1070 Won t Charge battery: John Deere Review  -- John Deere Tractors Discussion Forum and Review 1070 Won t Charge battery: John Deere Review -- John Deere Tractors Discussion Forum

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Discussion Boards > Active Subjects > Messages as Posted > John Deere Review Forum

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 02-03-2004, 07:02 Post: 75827
Mecheng



Join Date: Jan 2004
Location: Missouri - St. Louis
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 22
 1070 Won't Charge battery

My 1070's red light is on saying the battery is not charging. The battery takes a charge from a battery charger and holds it no problem. Where should I start looking, the voltage regulator (if it has one) or the alternator?






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 02-03-2004, 08:22 Post: 75834
TomG

TP Contributor

Join Date: Feb 2002
Location: Upper Ottawa Valley
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5406
 1070 Won't Charge battery

I guess the light is on and the battery doesn't seem to be changing from the tractor. A simple test is that a voltmeter should measure 14-15V at the battery when the tractor is running at fair rpm. If the voltage is there, the battery should be getting a charge provided the ground is good. It does sound like the voltage is low but cleaning the terminals and chassis end of the ground cable might help.

The easiest way to sort out the alternator/regulator question is to work from procedures in a manual. Most procedures go step by step through testing voltage and current outputs and each regulator circuit if the outputs are wrong. Without a manual there's a tendency to go around and around in circles trying this and that. Most procedures do require a volt/amp meter and the ability to load the system to close to the alternator rating.






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 02-12-2004, 21:36 Post: 76754
george 1
2004-02-12 00:00:00
Post: 76754
 1070 Won't Charge battery

Check the multi-ganged plug for the combo voltage regulator/rectifier unit located on the firewall for high resistance or open connections. This unit is an aluminmun block with fins.

good luck
keoke






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Discussion Boards > Active Subjects > Messages as Posted > John Deere Review Forum

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