I have a 1985 model JD 310B Backhoe that sat up for 3 years while I was sick. Now that i am over 65 and feeling better I am trying to get her back to life. I had to replace all fluids and bleed the fuel line and replace the starter and battery and finally got it to crank up today. It ran a little rough but it was nice to get it turning over. The off switch would not kill the engine but I got lucky and it finally died on its own. The throttle would not work so I assume all of this is related to the injector pump. I have no hydraulics at all so I am assuming that my hydraulic pump is stuck in some unknown position. As you can probably tell I have very little mechanic experience especially on a diesel tractor. I have managed to buy a Parts Manual but do not have a Service Manual. Any advice to test or things to try to revive this beast is much appreciated.