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Got a JD 415 powere by a Yanmar 3007D002 3 cyl deisel stuck in a customers paddock.
Deisels are not my forte but I can generally stumble my way through.
Now I am not getting any fuel flow to the pump , at the pump and sifting throught the parts book do not see a lift motor.
So am I correct in assuming the fuel pump is a two stage unit ?
I also could not see any manual priming pump, do they have one ?
Cracked the injectors and only get bubbles so am assuming a lift pump fault.
Customer says he was mowing & it just cut out.
Fuel bowl is full clean & has no water visible.
This mower is not in a well maintained state there was 3" of dust all over the printed circuit board but removal made little difference.

The glow plug light goes out after about 10 sec, is this normal for one of these & the plugs them selves do not get warm to the touch at the terminal end . I am used to plugs that get quite warm if repeatedly turned on .
I would like to get it running at least well enough to get it out of the paddock and the hydraulic lift mowing deck out , Gees these are heavy.

Any idea where I could lay my hands on a wiring diagram & or fuel flow diagram ?
Thanks

Also ask on "tractor.net."

If you mean this mob
EX 415 Won't start
Thanks for the heads up
Fingers crossed.

Because I like to finish things properly.
after downloading all of the books, buying manuals, staying up all night tracing out wiring circuits with coloured pencils, making up a stack of jumper leads to bypass the circuit board.
It was nothing more than dust on the circuit boards creating a short circuit.
took the mobilr compressor with me , fired it up, blew out enough dust to groe a bushel of spuds in then it fired right up.
o he big petrol compressor now becomes part of the call out vans equipment.

http://www.fire-pump.com/pdf/engine-manuals/Yanmar-9HPDSL/LV-Series-Service-Complete.pdf I know this is not your engine, same principles, see fuel system section 7.

We have a great selection of Yanmar parts, operation, and service manuals in stock.

The dirt or dust coating you describe used to plague the fielded systems sold to the US Gov. And those systems contained circuit boards all coated with a transparent layer of protection, but the dust still raised hell. Can't think of the fancy name for it, so dirt will do. The worst case was deployment in a tomato field. Hope readers take heed. I always blow off my rider best I can with a low pressure air hose, including the instrument dash backside. The dirt spider webs are tiny jumpers and the overall coating a resistive film which can confuse the circuit board components. Glad you found that solution and shared it.

mechanic mark said:

http://www.fire-pump.com/pdf/engine-manuals/Yanmar-9HPDSL/LV-Series-Service-Complete.pdf I know this is not your engine, same principles, see fuel system section 7.

We have a great selection of Yanmar parts, operation, and service manuals in stock.

Click to expand...

Thanks Mark
Good thing it is yet another manual to add to the collection.
Bad thing it is nothing like the 3 cyl Yanmar fitted.
Still can not make head nor tail of the serial & model codes but I will pop over to my "tame JD dealer" to order the service parts and see if he can enlighten me.

Appears that the smaller EX series were badge engineerd Yanmars and all made in Japan by Yanmar.
Some one over on the Tractorbynet forun dropped this link which was real handy
<http://www.martindiesel.com/Documents/New%20TNV-IDI%20Service.pdf>
Just in case some one else needs it.
And I picked up a paid for digital download copy of the JD 415-455 manual off one of those sites that hide the source of the material from the UK for the princely sum of ｣ 6.95 so all is well

motoman said:

The dirt or dust coating you describe used to plague the fielded systems sold to the US Gov. And those systems contained circuit boards all coated with a transparent layer of protection, but the dust still raised hell. Can't think of the fancy name for it, so dirt will do. The worst case was deployment in a tomato field. Hope readers take heed. I always blow off my rider best I can with a low pressure air hose, including the instrument dash backside. The dirt spider webs are tiny jumpers and the overall coating a resistive film which can confuse the circuit board components. Glad you found that solution and shared it.

Click to expand...

Don't know.
Once it fired up a couple of times in a row ( yes I know that is bad for diesels ) it was job done and on to the next disaster.
This machine has 2 printed boards on each side of the tractor on the output side of the radiator so in theory should be fed with warm dry & cleanish air as the air intake has a fairly fine screen on it and then it has to go past the fan & through the radiator it should then blow over the boards keeping them a fairly constant temperature and the air exits past the boards so it should keep them reasonably clean.

However the side covers are plastic, yes plastic on a 1.5 ton tractor, and had broken on the front mounting points so the rubber seals between the cover & the radiator were not touching let alone sealing.
There was actually grass sprouting between the two pairs of circuit board and at least 3 - 4 Kg of dirt plus grass clippings, sicks , stones and bits of rag & plastic bags

bertsmobile1 said:

Thanks Mark
Good thing it is yet another manual to add to the collection.
Bad thing it is nothing like the 3 cyl Yanmar fitted.
Still can not make head nor tail of the serial & model codes but I will pop over to my "tame JD dealer" to order the service parts and see if he can enlighten me.

Appears that the smaller EX series were badge engineerd Yanmars and all made in Japan by Yanmar.
Some one over on the Tractorbynet forun dropped this link which was real handy
<http://www.martindiesel.com/Documents/New%20TNV-IDI%20Service.pdf>
Just in case some one else needs it.
And I picked up a paid for digital download copy of the JD 415-455 manual off one of those sites that hide the source of the material from the UK for the princely sum of ｣ 6.95 so all is well

Click to expand...

Good deal bertsmobile 1.

The grass sprouting is wild. Reminds me I once read of a fellow who visited the eye doctor who found a tomato plant sprouting in one eye.