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Long, dead I wish forgotten
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<blockquote data-quote="flaboy-" data-source="post: 222003" data-attributes="member: 3688"><p>If you have a multimeter or any meter that can measure volts DC, hook it across the battery with the tractor running. You may have to bring the RPM's up to 1500 or so. With the RPM's up, the voltage across the battery should be at least 13.2. It can be higher and as much as 13.8. </p><p></p><p>A couple things can be going on. First the generator or alternator might not be working if you don't get over 13VDC across the battery with the rpm's up. Most alternators now have the regulator built in. I am not sure how old that model is but if it has a generator, it will also have a voltage regulator. If it is a generator and the voltage is below 13VDC across the battery then either the gen or regulator is bad. If it is alternator equipped and the voltage is low at rpm, then the alternator is bad. </p><p></p><p>The second thing is many tractors charging systems don't work well if at all at idle. They need rpm's to get the charging unit up to full song. A tractor that does not get run hard will often have low battery problems.</p><p></p><p>Third, if you know how to use the amperage function on a multimeter, you can disconnect the negative side of the battery and put the meter in series with the ground leg. With the switch turned off there should be NO reading on the lowest scale. Another thing you can try if you don't know how to do this is to remove the positive lead on the battery with the key off and just touch the lead to the terminal. If you see any spark at all, something is on. Lights or something is on all the time. </p><p></p><p>My biggest problem on one of mine is I leave the key on because where the idiot light is I can't see it in the sunlight. Left on long enough the battery will get run down. </p><p></p><p>Hope this helps.</p></blockquote><p></p>
[QUOTE="flaboy-, post: 222003, member: 3688"] If you have a multimeter or any meter that can measure volts DC, hook it across the battery with the tractor running. You may have to bring the RPM's up to 1500 or so. With the RPM's up, the voltage across the battery should be at least 13.2. It can be higher and as much as 13.8. A couple things can be going on. First the generator or alternator might not be working if you don't get over 13VDC across the battery with the rpm's up. Most alternators now have the regulator built in. I am not sure how old that model is but if it has a generator, it will also have a voltage regulator. If it is a generator and the voltage is below 13VDC across the battery then either the gen or regulator is bad. If it is alternator equipped and the voltage is low at rpm, then the alternator is bad. The second thing is many tractors charging systems don't work well if at all at idle. They need rpm's to get the charging unit up to full song. A tractor that does not get run hard will often have low battery problems. Third, if you know how to use the amperage function on a multimeter, you can disconnect the negative side of the battery and put the meter in series with the ground leg. With the switch turned off there should be NO reading on the lowest scale. Another thing you can try if you don't know how to do this is to remove the positive lead on the battery with the key off and just touch the lead to the terminal. If you see any spark at all, something is on. Lights or something is on all the time. My biggest problem on one of mine is I leave the key on because where the idiot light is I can't see it in the sunlight. Left on long enough the battery will get run down. Hope this helps. [/QUOTE]
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