I can’t give as technically sound or helpful reply’s as these you’ve gotten but i do have a newer 4701 and live in a similar geographic area as the OP (western Ky) so I’ll try add a data point.
my tractor is the DT gear drive version got it last sept and it’s sitting right at 70 hours.
The only regen I know of where I was operating at low/idle rpm happened around 55 hours, in Feb. i was idling in the barn. Other than that I can only assume a regen or 2 occurred while I was operating at higher rpm. When I first got the tractor my main task were tilling 8 food plots and bushogging around 30 acres. There were a couple of times, and I don’t remember the hours, when I was bushogging that I noticed a different smell from the tractor. Since I operate the hog with the rpm up to the 540 mark on the tach- and it’s thick crp type of stuff I assume the temps were night enough that it didn’t call for more rpm and just regened while I was working.
As an aside, I’ll also say that I’ve elected to not operate this new dpf tractor any different than I did my old l3000. If I don’t need the rpm’s- I’m not running it hard just to do it. I will say I caugh myself turning it off a little more frequently but not all the time if I’m off it butstill working. That’s just my stubborn streak and I will probably chill out over time, but for now I run it hard when I need to, to accomplish the task and put around whe I can. We’ll see how that changes over time lol and I’m certainly not recommending that approach. It’s just my current “MO”.
my tractor is the DT gear drive version got it last sept and it’s sitting right at 70 hours.
The only regen I know of where I was operating at low/idle rpm happened around 55 hours, in Feb. i was idling in the barn. Other than that I can only assume a regen or 2 occurred while I was operating at higher rpm. When I first got the tractor my main task were tilling 8 food plots and bushogging around 30 acres. There were a couple of times, and I don’t remember the hours, when I was bushogging that I noticed a different smell from the tractor. Since I operate the hog with the rpm up to the 540 mark on the tach- and it’s thick crp type of stuff I assume the temps were night enough that it didn’t call for more rpm and just regened while I was working.
As an aside, I’ll also say that I’ve elected to not operate this new dpf tractor any different than I did my old l3000. If I don’t need the rpm’s- I’m not running it hard just to do it. I will say I caugh myself turning it off a little more frequently but not all the time if I’m off it butstill working. That’s just my stubborn streak and I will probably chill out over time, but for now I run it hard when I need to, to accomplish the task and put around whe I can. We’ll see how that changes over time lol and I’m certainly not recommending that approach. It’s just my current “MO”.