2520 Starts, runs for a second and dies

[Egon]

There may be a fusible link in the solenoid circuit. They do have problems at times. Under ten dollar item.

Before replacing the fuel solenoid check and see if it works when out of the tractor. They can be expensive.

Just for information the solenoid activates the fuel pump. It has nothing to do with fuel supply.

 

[kthompson]

I have a 5525 that did about the same for me. It has spin on fuel filter. Turned out to have been either the new fuel filter or water separator not sure now which was leaking enough air in around the seal to create the issue. I was planting a field and really needed to keep running and took the filters off and wiped the filter seal and the surface on the filter mount. Solve mine's issue. As to trash in fuel tank, had also similar issue with a small Kubota and could not see the trash in the fuel tank for it turned out to be a black color wasp floating in the tank and with fuel at just the right level it happened.

 

[MPartin]

Picture A shows 4 diodes they all checked good only the one in the middle of the 3 goes to the fuel side of things. B not sure what it is but it has the main blue wire that goes to the plug on the solenoid. Not sure how to check this one nor what it should read. C has a orange wire going to the diode on the left not sure how to this one should be checked either. D is the plug to the solenoid I ran a ground and a hot from the batter. Grounded the top flat of the plug and touched the two side by side prongs, only one of those made it kick in. Replaced the fuel filter with no change to it running. I'm going to take C and D to John Deere in London Ky today to see what they tell me if you guys do t know. They may or may not help there not to friendly when it comes to questions.