4000 D break-in

I have replaced the piston rings on my 4000D (3 cyl) and need to break it in. Conventional wisdom is to work it with a plow in the ground but I have no plans for tillage this spring. I don't think any of my neighbors are working ground either (my area is primarily hazelnuts & vineyards). Are there alternate methods? I could drag a heavy trailer up the hills but I don't think that is going to add up to the hours required for ring seating.
Suggestions? Primary duty for this tractor is running a haybine and baler so relatively light duty.

Pulling a blade working on a driveway or road? That can lug it good too depending on the size of the blade used.

OK what about a PTO dynamometer for testing horse power can be used to load a tractor engine and can sit and run for hours. Used one once for a slobbery 3000 that needed some work. Did well no more oil past the rings. A farm machinery dealer with workshop may have one.

Back when we where farming heavy most engine overhauls where done during winter month's, so there wasn't much heavy work for the tractors until crop season started.
We always started the tractor and set rpm's 16-1800 and let it set and run for at lease one hour non stop while monitoring oil pressure and temps. Afterwards we used the tractor for whatever job was needed but made sure to only idle the engine for the first few minutes after first startup then tried to maintain a min of 1000 rpm until time and weather allowed for the tractor to be worked.

No plowing for us these days, mainly haying and some no till corn, pulling a piece of equipment or loader
d trailer/wagon up a long hill puts the most strain on my tractors, but a good long day pulling a mower at steading pto rpm seems to do the job, it may take a little longer to seat the rings fully but good steading working rpm's will do the job.
I don't like using a fresh overhauled tractor on a square baler, but a round baler will give it a good workout.

The main thing you don't want to do is idle it around, even if your just driving around or doing light work put it in a lower gear and increase the rpm's.

Bush hog?

When I broke in my 3 cylinder 4000, I hooked a gooseneck trailer to it, loaded another tractor and bush hog on the trailer, and with a full tank of fuel, I drove until it had chalky exhaust. Trailer empty is 4450 lbs. Took about 2 1/2 hours. I was pulling the snot out of it on some grades. It pulled hills in 8th, that I had to pull in 6th before rebuild. Only bad thing, was I pick an cool overcast day, and got wet working her. Varied my speeds, never lugged at low RPMs and just worked the living stuff out of it. Made the difference. I had hills. I had a 7 foot bushhog, and even it wouldn't work it like the trailer.

Wayne