Hello all, lots of great info here. I am backyard warrior with Case Super K working on my property on remote island - this means if I don't fix it I can't use it. My backhoe was sitting for half year and when I resumed work this spring, it started doing pretty much same thing as this thread is about. I have speed shifter on right console , forward reverse on steering wheel column , push button for clutch disconnect works fine. So far I've replaced two big filters which I believe one is hydraulics (filter in between rear wheels) and transmission (filter on transmission more forward). What happens is I can start machine in the morning and it runs. I stop for lunch for 20 min. and it would not move. To make it move I found that when I shift into 4wd it would move so I "drag" it for 20 meters and flip it back into 2wd and it would run rest of the day. Morning next day it would not move..... I'd drag it on 4wd for a bit and it runs again no problem. I just worry that it will give up one day completely on wrong side of my property where it will be harder for me to fix it. I will check all above recommended steps, feels like there is air somewhere maybe? Oil reservoir is full , when it moves it moves strong and fast so I do not suspect problem is with torque converter. Maybe fluid is old, but why it runs On/Off like that? Also dealer told me that tranny and hydraulics use same oil just two different circuits, but I have no problem at all with hydraulics - all works great. Also oil is very clean. Any thoughts? I will check all I found in this thread, I just wanted to be more prepared when I go back to my property so I can troubleshoot this. Thank you for any help. Rob