Jinma 284 electrical schematic (2005, integrated instrunment panel)

[greg_g]

Well thru the key is how it came from the factory, and it has been working without issue for 6 years now...

Yes, but the real question is "has it been working well?". The Y85 series engines are notoriously hard starters when cold. That's well documented. Out of sheer principle I added both a starter relay and a glow plug relay. Colds starting aggravation became a thing of the past - and extend the life of the OE keyswitch considerably.

//greg//

 

[studor]

I bet those matching belt and suspender outfits are hard to find --just joshin

 

[RonMar]

Yes, but the real question is "has it been working well?". The Y85 series engines are notoriously hard starters when cold. That's well documented. Out of sheer principle I added both a starter relay and a glow plug relay. Colds starting aggravation became a thing of the past - and extend the life of the OE keyswitch considerably.

//greg//

Mine has always started fine in the winter, even with the bad connection I found in the glow plug circuit during this evolution. In fact, I am still running the original chinese battery I did add a 1KW tank type engine pre-heater last year to make the real cold starts a little less hard on the machine... Not that it gets especially cold here...

All good food for thought!

 

[mikesheirich]

In troubleshooting my tach failure (bad sensor, only putting out .5V signal instead of the nearly 5V signal the tach needs to operate) I pulled my cowling and also did some wire cleanup. This gave me the chance to finally finish the updated electrical schematic I started several years ago, which I have attached here.

Enjoy!

Ron,
Nice work. It will help out a lot of owners...Mike

 

[Trains1938]

Hi greg I am new to tractor stuff, could you or will put a diagram of how to do the thing you did. I am not a electrician or a mechanic. It sounds like a good idea but I am visual person so diagram would help a lot. It seems to me the wire from start switch should go to s terminal. What am I missing?

 

[Trains1938]

Nice, Ron

 

[longrider]

has anyone seen a wire color chart for Chinese tractors??

 

[RonMar]

With so many variants, I would be surprised if wiring colors were consistent. I think that is why they number them...