Tire choice really doesn't matter in regards to whether you need chains or not. If you are operating on very steep and icy conditions, you need chains. If you just have gentle slopes, you don't.
R4 tires work just fine in snow; in fact I think they work well. I've plowed with both R4 and R1. I don't see much difference.
Your 3560 HSTC has plenty of weight over the back end, especially with loaded tires. Weight is what moves heavy snowfall with ease.
I plow with my 4060 HSTC using a back blade and front loader and loaded R4 tires. Works great...just give the tractor plenty of time to warm up because it takes awhile to get heat in the cab. Run the speed higher than idle.
R4 tires are essentially the same as what the big front end loaders with snow pushers are plowing Wal-Mart parking lots with, so clearly they work OK.
R4 tires work just fine in snow; in fact I think they work well. I've plowed with both R4 and R1. I don't see much difference.
Your 3560 HSTC has plenty of weight over the back end, especially with loaded tires. Weight is what moves heavy snowfall with ease.
I plow with my 4060 HSTC using a back blade and front loader and loaded R4 tires. Works great...just give the tractor plenty of time to warm up because it takes awhile to get heat in the cab. Run the speed higher than idle.
R4 tires are essentially the same as what the big front end loaders with snow pushers are plowing Wal-Mart parking lots with, so clearly they work OK.