GaryBDavis
Gold Member
Well, after 700+ flawless hours, my JD5420 hiccupped on me today. I went out to shred and it started loosing power when I engaged the PTO. So, I went back to the shop figuring the fuel filter had clogged up. It was time for an oil change anyway, so I changed the oil and fuel filters and blew out the air cleaner. Nothing looked out of the ordinary, but that apparently wasn't it.
I can tell from how the engine runs that the shredder isn't loading it down, but I checked it anyway and the shredder turns nice and freely. The engine is more of a stuttering than a bogged down sound and feel.
The tractor starts up just fine and runs down the road in high gear without missing a beat. The throttle is instantly responsive and the engine doesn't hesitate a bit. But once I engage the PTO at rated PTO RPM speed, the engine runs fine for a few seconds and then begins to stutter and the RPMs go down to around 1500-2000.
I thought I might have some air in the lines or some trash, so I bled the fuel just like it says to in the manual and then shredded for a half hour, but it never cleared up. There are no fuel leaks, so I'm at a bit of a loss. I did fill up the tank the night before, but if it was bad fuel, I would think it would run rough at any speed. The fact that it only stutters when under a load at high RPM tells me I have a fuel supply issue, but I don't know how to troubleshoot any further.
Anyway advice from the JD5000 series experts would be appreciated.
Thanks for your help.
I can tell from how the engine runs that the shredder isn't loading it down, but I checked it anyway and the shredder turns nice and freely. The engine is more of a stuttering than a bogged down sound and feel.
The tractor starts up just fine and runs down the road in high gear without missing a beat. The throttle is instantly responsive and the engine doesn't hesitate a bit. But once I engage the PTO at rated PTO RPM speed, the engine runs fine for a few seconds and then begins to stutter and the RPMs go down to around 1500-2000.
I thought I might have some air in the lines or some trash, so I bled the fuel just like it says to in the manual and then shredded for a half hour, but it never cleared up. There are no fuel leaks, so I'm at a bit of a loss. I did fill up the tank the night before, but if it was bad fuel, I would think it would run rough at any speed. The fact that it only stutters when under a load at high RPM tells me I have a fuel supply issue, but I don't know how to troubleshoot any further.
Anyway advice from the JD5000 series experts would be appreciated.
Thanks for your help.
