I need to change the Hy-Tran & filter on my 782. (I bought the tractor from my mom after I retired from the Air Force, and after my dad died. I don't know for a fact, but I suspect the fluid & filter hadn't been changed in years, especially given that the Kohler KT17 died shortly after it was mine.)
My question: What's the best and/or easiest way to drain all the old fluid? Do I need to remove the rear cover plate and then replace the gasket afterwards, or can I just remove the transmission tube assembly & reinstall after it's drained?
Also, any advice on operating procedures after I add the new fluid? (Do I need to run it through the full range of fwd/rvs, then top off again, etc.) This may all be common knowledge to most, but it's all new to me.