Last year I struggled with chains, trying to find a way to put them on the rear R4 tires that didn't completely suck. I failed (I put them on, but all the ways I used sucked). This year, I stumbled on a way that was amazingly easy. When I was done, I was like, "Wait, that's it? I'm done??"
The way is simple:
1. Jack up the rear of the 1025r (put jack stands in place for safety).
2. Engage the parking brake. This is the key!
3. Drape the chains over the tires, spread them out and fasten them.
The key is the parking brake. If you jack up the tractor without it, the tires will spin and the heavy chains will fall off when you try to put them on. This method is absurdly easy.
Hope this helps some of you.