Not exactly swing you need to pull the pins in the hitch,put a block behind the outboard wheel and back up.Don't forget you'll need an AC ball to hook up.

I towed my cousin's Rotobaler about 20 miles when he bought it. it's been a long time, but I didn't think there was any way to "narrow" the hitch for transport. I hauled it from the regular (center) hitch on my truck. It was the first time I hauled a "left hand" implement and it wasn't fun.

I towed an all crop 66 and a 90 from one farm to another, just over 130 km (80 miles). Both wide, awkward tows, and the 66 has bushings rather than bearings. Both went just fine. Probably made a few enemies on the road with how slow I was going, but no major incidents.

See this link, where another guy talks about towing them:

Actually main roads are better more lane width,4 lane even better.We once pulled a Roto Baler thru Richmond VA on Broadstreet before they built I95 and I 64.I pulled a NH 851 over 200 miles

Yup, I believe so, but I've only seen one once, and that was on a baler sitting in a fencerow. They had an electric overdrive that would kick it into warp speed when the twine arm dropped. My understanding was that some of the (many) problems with the continuous functionality/bakcfeed conveyor of the #10's was when the high speed tie didn't kick in: Didn't tie fast enough and while it was wrapping, hay kept accumulating and built up too much backlog ahead of the pickup.

Of course, there were many other issues with the #10's continuous baling functionality - that was only one small part of it. The ones I've seen had to maintain  a pretty slow ground speed, or the upper bypass conveyor would backfeed and drop too much hay in front of the pickup and would start rolling hay into a ball right in the pickup where it was dropping. It was a pretty wacky idea to begin with: The baler was designed to be fed at a certain rate, and suddenly during the bypass period you're feeding twice as much for a short period once the bale ejects. So you either have to maintain a slow enough ground speed to handle twice the feed rate, even though you're only handling it for a small portion of the time and the rest of the time you're not using the baler to its full pickup potential. Or you travel at a decent speed to use the baler's normal pickup capacity, then it gets over-crowded when it does its bypass thing and starts balling up in the pickup.

I think Allis had some of the best engineering in its time, but for that particular instance someone didn't know how to design for steady-state operation.