The chains as installed appear to be too large for the tires, both width and (hard to see) length.
The cross links should end near the base of the lugs, well away from the rims. Perhaps you can rectify this by removing some length from the circumferential chains (perhaps a cross link or two also, but cannot tell), perhaps not. DO NOT cut chains before test fitting at least once and preferably twice.
I have rarely (never?) bought a set of tractor tire chains that did not need modification, sometimes major modification, upon initial installation. Manufacturers manufacture tire chains to fit multiple tire sizes so compromises are (almost) inevitable.
This is why initial installation is critical and why I stated in a previous post that one would struggle upon fitting/initial installation.
Recently, I spent about four hours fitting and initially installing a set of rear (perhaps one hour for fronts) tire chains for my B3350 but the effort was time well spent.
The chains now fit very tightly, do not move regardless of load, do not contact the fenders, do not ride into the tire grooves (much) except near the tire edges, and cannot be installed loosely because I have removed excess length. They are simply too short to be installed loosely.
Subsequent installations can be done in about one hour. Yes, I find it necessary to attempt to lock the circumferential chain ratchets multiple times as I repetitively move side chains about to gain length and I do lie on the ground while doinig this. One should expect to spend more time to install tire chains on larger tires for multiple reasons, especially the weight of the chains.
If one expects to install tractor tire chains quickly, even for a B2650/3350 sized tire, one should not expect to achieve proper fit/installation and one should expect the need of tensioners, etc.
SDT