How steep a grade can a HG in good tune climb in 3rd gear? My HG will climb any grade that it will keep traction on, in 1st, or 2nd, but will stall on anythyng much more than a 15% grade in 3rd. I find 3rd is to fast for any useful work, except a drag harrow.
A 15% grade is pretty steep to be running that fast and there is not a lot of work that they can handle in 3rd .
I have found that the only place I can use 3rd is on plowed ground. A gravel road, or pasture is usally to rough, and a small root or stone feel like hitting a wall. a 50% reduction in gear ratios would be perfect. I wonder why thay were geared so fast? Too fast to cultivate, plant, or mow, and not enough power to plow, or disc. Even with My Allis "C", I only use 3rd on hard road.