I have a L4701 about a year old with 28 hours. It just ask for its first regeneration. During the regeneration the tractor stalled and quit. It would start back after a minute or two but would quit in a couple minutes. I took the tractor home at a slow idle. The next day after starting regeneration and it quoting a bunch of times it finished the regeneration process and the light went out. Thinking the stalling was because of the regeneration I started mowing and after about ten minutes it quit and after a couple minutes it will start back run a couple minutes and quit again. It starts fine and runs perfect until it gets warm then starts quitting. It doesn’t get hot the temp gauge goes middle of the white and stays there. It only has 28 hours and is only a year old so I don’t think the fuel filter is clogged and it runs fine until it quits. The air filter was clean as could be. It is down to a quarter tank of fuel so I was thinking of putting some fresh fuel in but if I had water or dirty fuel it wouldn’t start and run perfect until it starts quitting. Thanks for any help or ideas you might have. I know this is a long post I am trying to give you all the info I can. Thanks again