Rhino 172 too big for JD 3720?
- Thread starter ylazyy
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Crash101
Silver Member
You may receive responses from others who have far more knowledge than I do about this subject, but I believe there are 4 main considerations for a 3 point rotary cutter. The tractor's PTO horsepower, the tractor's 3 point lifting capability, the tractor's actual weight and the tractor's rear wheel tread distance.
The JD 3720 (wonderful tractor by the way) certainly has enough PTO hp at 35, has enough 3 point lift capacity (2200 pounds @ 24 inches behind the link arms), and at close to 3000 pounds, is heavy enough to handle the Rhino's 785 pound (advertised) weight, and at 6 foot, the cutter will extend behond the rear tires for a good cut. I think if I were looking for a cutter for that tractor, I'd buy the same one you did.
The JD 3720 (wonderful tractor by the way) certainly has enough PTO hp at 35, has enough 3 point lift capacity (2200 pounds @ 24 inches behind the link arms), and at close to 3000 pounds, is heavy enough to handle the Rhino's 785 pound (advertised) weight, and at 6 foot, the cutter will extend behond the rear tires for a good cut. I think if I were looking for a cutter for that tractor, I'd buy the same one you did.
LoneCowboy
Veteran Member
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a Rhino 6' 172 can be pulled with some effort by a MF 1433 (33hp, 27PTO),
without even thinking by a TC45 (45hp).
Certainly your 44hp JD will be perfect for a 6' cutter
without even thinking by a TC45 (45hp).
Certainly your 44hp JD will be perfect for a 6' cutter
have_blue
Veteran Member
ylazyy said:
Just something to keep in mind:
Although the Rhino is within the 3PH weight limit, it gets brutal leverage on it. So make sure you mow with the 3PH arms all the way down, and avoid carrying the Rhino lifted for long distances and/or high speed. Hitting a bump can put very high shock loads on the hydraulic system with all that weight hanging out 7-8 feet back there.
Thanks for the great responses guys! For a girl with her first tractor, this is all good to know and a relief that I did not make a mistake in the purchase. I mowed the horse fields all day and it worked great. The words of caution about the hydraulics are something I will keep in mind.
Truthfully, I love the 3790, except for the difficulty in seeing the loader while trying to fill it. I am just assuming this is an art that takes practice...
Truthfully, I love the 3790, except for the difficulty in seeing the loader while trying to fill it. I am just assuming this is an art that takes practice...
MarkV
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Congratulations on the new tractor. You bought a nice combination for mowing. Working the loader will become easier with a little more practice. Most everyone has the same trouble at first.
One thing to keep in mind about a rotary mower is they can throw objects very hard and far. It is always best to keep other people and animals out of the field while mowing.
MarkV
One thing to keep in mind about a rotary mower is they can throw objects very hard and far. It is always best to keep other people and animals out of the field while mowing.
MarkV
