Sure sounds like you ran out of fuel. Refill the tank and bleed the line and the injectors and it should start up. As has already been written, the fuel gauges can not always be trusted, yours might be stuck.
There are instructions in your operators manual to bleed the line and the injectors. It is a simple process (I can do it without getting dirty) and pobably only requires only a Cresent wrench.
Assuming you ran it out of fuel: Find your fuel filter on the side of your engine, just after the fuel filter will be a nut that can be loosened to bleed out air. Loosen the then and crank over the engnine until you see a bit of diesel bubble out of the nut. Retighten the nut. Then trace the fuel line a bit farther an you will see it split off into 3 small lines each of those lines goes to one of 3 cylinders on your engines. At the point were the line goes into the cylinder there is a compression nut, loosen the nut farthest away from the fuel filter and crank over the engine until you see a bit of fuel bubble out. Retighten the nut. Then do the middle cylinder's injector the same way. Now you have bled the air out of 2 of the 3 injectors, you tractor should start. It will run rough until the air works its way out of the first line. If you want you can bleed all 3 lines. I've gotten them to start up after only bleeding 1 line, but they sputter quite a bit for 3 or 4 minutes while they are running the air out.
