I finally have the HB112 back up to running condition. Still needs some carb work (slowly dripping gas), but it pushed the 4" of slush we've gotten like it wasn't even there. The power lift for the plow is a great feature. I'm not sure I have the correct lift rod, but the one I have works great.
We don't see many Allis Chalmers products on the forum, so here are some photos: