Check your battery cables, especially the grounds. Check the connections from the ground cable to the body and both ends of the strap from the body to the engine block.They must be clean and bright. Most jumper cables won't carry enough current to turn over a diesel if your battery is dead. Charge it over night. You have to pump the hand pump until you hear a faint buzzing at the injection pump. (as many as 200 strokes) If the hand pump leaks you must replace it. Fill the fuel filter with clean fuel to cut down on pumping.