YM2310D Electrical

Darrell2 · Feb 10, 2003

Yanmar experts and trivia buffs,
What the heck kind of charging system does the 2310 have? It doesn't appear to be an alternator (Dyno?). Talked to a parts guy at Homestead tractor and was told something to the effect that it will maintain a batteries' condition but would not actually increase the charge. My battery doesl run down after a number of starts and then needs a little help from the battery charger. This type of system is new to me. Any thoughts or opinions? Thanks, Darrell

normde2001 · Feb 10, 2003

I m not familiar with the 2310 per se, however if you aren't getting about 13.6-14.4 volts to the battery at a fast idle , something ain't right. It is low current, (trickle charge), and a defective battery or poor connection could cause this. Being a diesel, you can unhook the battery and check for the above mentioned charging voltage while running. That voltage and current will keep a good battery charged up, but probably won't charge up a weak or dead battery. If your battery won't charge up to and hold about 12.6-12.75 volts with the charger, it's defective.

HoyeTractor · Feb 10, 2003

Darrell,
Yanmar has a really unique charging system. They use a generator that charges about 40 volts AC (like your house) and then use a regulator to convert that to 13-14 volt DC. You should get 13-14VDC to your batteries if everything is functioning properly and you should not ever need to use a battery charger (unless you leave something on). The generators themselves will just about outlast the tractor but the regulator is the weak link. We end up replacing about 10% of the regulators on the tractors we get (appx. $100ea). If your tractor is not charging right, I would check the regulator first.

Hope this helps.

Soundguy · Feb 11, 2003

They use a generator that charges about 40 volts AC (like your house) and then use a regulator to convert that to 13-14 volt DC.
 

So... wouldn't that make it an alternator.. rather than a dc generator? And wouldn't that regulator be more like a rectifier/regulator combo?

Picking points yes, but there are always new people around that might misunderstand a technical discussion.

Soundguy

kayssupply · Feb 11, 2003

All I can tell you is that there isn't much to it. There is just a magnet with a coil spinning in it. No brushes, no rectifiers, just two wires. Everything else is in the " current limiter " on the fire wall. You might as well get a current limiter. If you don't need it you will sooner or later.

reb · Feb 11, 2003

It sounds like the "regulator" is nothing more than a full wave rectifier and a current limit resistor. If you know what current is provided by the alternator, it is simple to rig up a substitute for a lot less than $100. Do you have any idea what current specs are?

reb

gbirky · Feb 12, 2003

Reb,
I went through this on this forum several months ago when trying to fix my YM1110D charging system. I took the alternator/rectifier and regulator/limiter to a shop and had it tested. The alternator was OK, VR was bad. My alternator had the bridge rectifier on the back of the alternator. We went around for days on how this could be fixed. In the end - I spent the $60 and bought the regulator/limiter from a Yanmar dealer.

It appears that the 1110 system is a bit different than most, with the bridge rectifier on the alternator. I think thats why the VR was only $60. Most are $100 or thereabouts.

There was some discussion about using a Kohler regulator for a 1401. jwjimbo was the poster, but we never heard whether that worked or not. Here's a link to that thread, but be prepared, its a doozy.

If you come up with something - please let us all know, as this is a very common problem with the Yanmar tractors, and a less expensive alternative for the owner would be a good idea.

jimstractors · Feb 12, 2003

Greg:
I guess I forgot to repost my results. I just posted them on the other thread:

 Sorry, I got lost in the long thread....YES! the Kohler regulator works fine. /forums/images/graemlins/laugh.gif I haven't had to charge the battery once since replacing it. Here is what I ordered: Kohler reg. from jackssmallengines.com for $36.82 + $5.00 shipping, no tax. Their part # ST435081. 
Thanks,
Jim

BrettW · Feb 12, 2003

Guys, from a guy that knows virtually nothing about electrical systems, a question. Would it be a good idea to test/check the output of our VR and alternator now, while it is still working well, in case the collective knowledge of our group fails us on obscure models? Is this possible and reasonable? thanks, we could even start a data base thread. Most will need it sometime. bw

HoyeTractor · Feb 12, 2003

Soundguy,
I am not an electrical engineer but the "regulator" I am looking at (off of a YM1610) says regulator on it and the "generator" says generator on it. That is where I got my terminology.