Hi, Tom/HRS. Here are a few thoughts about the snow plowing problems you mentioned.
1. It sounds like you have "4-link" chains, which would have about 10 cross-links. A set of "2-link" chains would have about 20 cross-links and would be less likely to slip. I have 2-link on the E15 that plows and 4-link on the I-5 with snowthrower. The 2-link set is much better.
2. The lift's Slo-Blo fuse can't reset -- it would blow and you'd have to replace it. It might help to re-rig the lift strap so that it is connected to the big pivot bolt rather than to the attachment point further back. This will make the blade lift more slowly but would put less stress on the lift motor. Even better, rig it up with a "pulley" at the big pivot bolt, so that there is a 2-to-1 reduction. Here is a photo of a nice job done by Steve Shore:http://www.elec-trak.com/forum/attachme ... 1325301640
I did something similar, along with a lever that causes this "pulley" assembly to pivot along with the blade.
If you have the Homeowner' Service Manual, page 1-27 shows various ways to route the lift strap. I'm suggesting the one labeled "double purchase" rather than the one labeled "snow/dozer blade".
You should also have the helper springs attached and tightened so that they do a lot of the blade-lifting work.
In my experience, 14" of snow is quite a lot to plow, especially if it is wet and heavy. Our driveway is 700' long and goes uphill at about 5-10%. With heavy snow I need to push it diagonally off to the side and may need to give the batteries a recharge; this is a case where the original charger seems well-suited -- it pumps in about as much current as possible. So, plow first thing in the morning, re-charge, and then plow again late afternoon (and hope the snow stops falling!).