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Hello Folks, I haven’t been here for a log time. Tractor running well.
I have a 2007 284, Yangdong engine. An irritating little issue has been the charging amps fluctuating wildly. Yesterday I decided to see if re-soldering the regulator connections would help. I carefully wrote down the wire colors, soldered, and reconnected. Immediately fried the regulator. Long story short, so far I have blown several of the 10A regulator fuses and fried two regulators. Can someone tell me the regulator wire locations? What I had written down was (looking at the regulator)
Center: White.
Top: Yellow.
Left: Green
Right: Black
Bottom: Red
If anyone can tell me the correct locations I would seriously appreciate it. I’m down to my last spare regulator, this trial and error method is not going too well.
Had cataract surgery a couple of month ago; that must be the problem. LOL
Mike -
I don’t believe you can go by wire color. Jinma used little plastic number tags to identify wires.
Also, they used a couple of different voltage regulators over the years. Some had screw terminals and some had spade terminals that just push into the connector next to the fuse block. Of these there were at least two designs, one had a small LED light on it. I don’t know for sure but is sticks in my mind that these were not interchangeable.
For the style with the spade terminals the weakest part of the it was the block and the OEM wire terminals are of very poor quality. No clamping ability and they come loose a lot. You can bend them tighter once or twice, then they break. That mounting location is also a really poor spot because is shakes wildly.
I added an upper brace to the fuse block mount but that did not entirely solve the problem. When the second regulator died after only a few hour of use I looked for alternatives. At that time regulators were $25 and shipping half that. I haven’t priced them lately.
I wound up replacing the alternator with a re-man Delco for about the price of two regulators. The Delco has an internal regulator. All I had to do is flip one of the mounting brackets end for end.
There are some down sides to this approach but over all I am very happy with it.
Pros:
Much higher output alternator
Availability of both reman units and parts. There are millions of them out there…
Lower price
Cons:
The one I used is an open fan design which means I have to be sure and keep the dust blown out of it. Not a big deal for me but it is in some applications. In that case you need to upgrade to a totally enclosed design which will cost more.
I had to do some re-wiring of the tractor. The amp meter still functions properly but the “idot light” on the dash does not. It is on all the time. I could probably fix that with some diodes but I have just learned to ignore it. You can never trust a light anyway.
Here is a schematic that I found. It shows the wire numbers but does not show where they connect to the regulator. Hopefully this will help. It is labled 2005 and matched my tractor that was made in late 2006. As far as I know there were no records kept as to when design changes were implemented.
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there could be a problem with the alternator diodes causing the voltage reg. to burn up. I would suggest taking it to a alternator shop that does rebuilds ask them to test it and ask what voltage regulator they would suggest off the shelf. I am sure they can also tell you about wiring it correctly too. let me add that bad grounds can ruin these electronic voltage regulators , they get power in but can not run it off causing too much heat.
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Hello David, yes re diodes, I was trying to do the “easy” stuff first, but screwed it up. Trying to “unscrew” it before I do what you suggest. All I am asking is for someone to look at their tractor and tell me the order of the wires going into the regulator. I agree with Piper, one can’t trust the wiring colors, but…
If I knew of another Jinma in the neighborhood I’d drive over and look for myself, but they seem to be becoming ever-more scarce. -
well I have a 2005 dong feng 204a ,it is close to what you have but I do not think it will exactly cross over. I believe that the voltage reg. has three wires. I did replace it several years ago as the orginal was overcharging, new one has a red light on it that indicates it is powered, why I have no clue, but it works well enough.
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