Small Yanmar handle a 5' tiller?

With a rototiller the size you mention is the fact the tractor MIGHT be able to handle it but the power to lift it might easily lift the front wheels of the tractor off the ground even IF the tractors 3 point hitch could lift it off the ground. The rototiller listed weighs in at 790 pounds and exceeds the reccommended weight of the 3 point hitch.

Yes the implement makers do tend to run conservative rating the engines required for the tractor but they do it with the tractor makers because they rate the tractors not the implement maker.

Your best bet for a Yanmar is the 48" tiller as it is closer to the weight that a Yanmar can safely handle.

Thanks. Actually it's 690 pounds and that's the ship weight, but that doesn't detract from your point.

I hadn't noticed how heavy it is. Coming from a "big" tractor background, I never give much thought to such things.

Contrast to the ones sold by LMTC, their 5-footer weighs about half as much (355 lbs). Says it's designed for "small tractors".
http://lmtcompany.com/implements.html
http://www.delmorino.it/english/english/holiday.asp

But would one of these small ones be usable on my 62hp Ford? I'd like versatility where I can get it.

Rottweiler said:

Can a small Yanmar, say a 1600-ish, handle a 60" rotary tiller? .

Any guidance?

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A 60" tiller is too much for a 1600, not enough PTO hp. A 48" would be the upper limit, and may still be a bit much. If I remember correctly, the 1600 is a 2-cylinder, and the pto hp is around 16. I had an 1810D once, had a 3-cylinder 18pto hp engine, and I used a 50" tiller. It was just about right, although in compacted ground, it could lug the engine. 48-50" should be enough to cover the tracks of a 1600 and then some.

The weight of the 60" tiller is definitely too much for the 1600. It is on a smaller "frame" than the 1810D, and I had to use 126 pounds of front weight with my 50" tiller, which weighed about 375 pounds, to give the front enough traction to pull (4WD)