Jinma 284 electrical schematic (2005, integrated instrunment panel)

greg_g · May 31, 2011

RonMar said:
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 · May 31, 2011

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

--just joshin

RonMar · May 31, 2011

greg_g said:
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 · Mar 11, 2012

RonMar said:
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 · Mar 5, 2019

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?