I purchased a used 917 flail mower which needed some work. I replaced the broken/missing flails, replaced the tension pulley and put a new V-Belt (C-52) on it. The belt was VERY tight. About 15 minutes into the first use (just mowing long grass, nothing too thick), it threw the V-belt and...
I recently found an opening in the never-ending rain to do some field mowing with my new flail and sure enough had my first failure (this is perhaps my third real use of the machine). I was mowing between a wood-line and a garden and managed to find an old garden hose someone abandoned there...