1802D wont turn over
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clemsonfor
Super Member
Before buying cables are you sure yours are the problem? Did you take jumper cables and ground the bat to the frame and then take the positive side and touch it to the power connector on the starter to see if that makes it turn over? If the cables are not your problem you just threw money and time at something that may not be the problem.
yes positive cable was bad. I replaced it and now tractor is running but....
now I have light showing battery lit up, battery was full charged when I reinstalled it, at least my charger showed full charge.
which wires do I check to make sure it is charging battery. is starter also a generator? I don't see what is charging battery as in no alternator. where is it located ? I have had this light on before and it goes out after running and I guess charging up battery, battery is on 10+ years old, it could be going south on me but it started tractor 4-5 times just fine.
I don't have multi-meter to check charging volt back to battery, need some ideas on this problem
now I have light showing battery lit up, battery was full charged when I reinstalled it, at least my charger showed full charge.
which wires do I check to make sure it is charging battery. is starter also a generator? I don't see what is charging battery as in no alternator. where is it located ? I have had this light on before and it goes out after running and I guess charging up battery, battery is on 10+ years old, it could be going south on me but it started tractor 4-5 times just fine.
I don't have multi-meter to check charging volt back to battery, need some ideas on this problem
You need an inexpensive one of these. Volt Meter - Harbor Freight Tools If you don't have a Harbor Freight nearby you can get one for about $10 at Walmart. Everyone has a Walmart nearby. I don't know how you are going to check it without one. If you had one you could first check voltage at battery not running and then running. This would be at 1800 or more rpm. You should get close to 13 volts dc at the battery with it running. If not I can give you more procedure. No need to until you check that. Here is a picture of your dynamo. At least I think this is the one you have. It will be on the left side with a belt going around the pulley. Yanmar Tractor Parts: ALTERNATOR (DYNAMO)
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Andy in Gap
Silver Member
If you aren't getting voltage at the battery, you can check at the alternator plug for AC voltage. Should be 15VAC or so at low RPMs, and double that at higher RPMs. Your voltage regulator may be the culprit. Don't assume the alternator is bad, they are usually not the problem.
clemsonfor
Super Member
There is a little alternator or dynamo or whatever you want to call it. Like others said check running at around 1800-2000rpm. It will be say 12.8-13.2volts. Make sure your meter is set on 12v.
No the starter is not the alternator or charges the battery. There is also a voltage regulator like the folks mention that is under the dash that regulates the charge to the battery, this is mostlikely a problem when there is one. Just make sure you trouble shoot to see if it is bad.
But seriously you need to take that battery to be tested at say Advance Auto parts. A battery can show 12.6 volts on a multi meter but still be bad. There will be bad cells in the battery that will not allow it to have the cranking amps it needs. And even though you started it fine 4x it may act up on the 5th but not the 6th time or 7th but then again. Bad batteries can do funny things. If you do not have a load tester you need to take it in to be tested. Its free, most places as they want to sell you another battery. You can kind of test it with a multi meter by haveing someone read the volts on the battery as you start it. It should not drop i beleive below 7-9 volts i think, but not sure?
If you need a battery i have coupon codes where you can get $30 off a $75 purchase at advance. This will make thier $90 batteries $30 cheaper which in my town is the best deal you can get. PM me i will give you the code for the online purchase.
