Chains hung up and checked chains when I took them off, that way ready to install when needed.
Block front wheels, jack one side of tractor at a time, put chain over the wheel, with tractor in N you can spin the wheel till the ends come to front or back (you decide) of fender, connect the back side chains together ,move around to front of wheel adjust chain on the wheel to get the tightest fit, connect the front fastner, put on spreader, spin the wheel...adj if needed, lower jack & then do the other side.
Of course this is done on a flat surface , no need to climb under tractor, total time to install 15-20 min both sets of chains.