My 574 cuts out and seems to lack fuel. I thought the filters may be a problem, so I replaced both fuel filter, and bled the filter by loosing up the screws on the top of where the filters screw on. Air was present, but no fuel would come out when I loosen the screw. I removed the line going to the manifold that holds the filter on and have a solid stream of fuel here. When I took the filters back off there is not a good stream going to each filter. I did get it to run okay for a while, but when I put under load it cut out. I had a hard time keeping it running. I also tried loosing up each injector by the injector pump as the manual said, but this did not solve my problem. Is there supposed to be a solid stream of fuel coming out where the filter attaches? I also noticed that every time the tractor died, and I open the two bleeder screw on both fuel filter there was air in them but again the manual said after the air is bleed off you should have fuel coming out of the air bleeder but I never get that. I am puzzled since I have a solid stream of fuel coming to the filter manifold. Is there a filter in the Manifold that hold the filters on? I also removed the pet cock valves from both left and right side fuel tanks and have a solud stream of fuel coming out. when I loosen up the injectors at the pump, all four have a nice pattern and appear to be working properly, Does it matter which one your loosen 1st. Any help will be appreciated. Thanks