oldted
Time to get some hyd. pressure checks to see what/where the problem lies.
Make up a coupler with pressure gauge that can be connected at the quick coupling spots as a place to start.
Let us know..
Welcome to TBN
I agree 410 has a clutch that might have failed stopping input shaft from turning & trans pump from pumping oil. I saw no inspection cover in clutch housing to determine if clutch disk failed so I think I would remove trans top cover prior to splitting tractor to determine if trans gears/shaft won't turn when engine crankshaft turns.
Has hyd oil sump screen been checked/cleaned lately???
Thanks for the info I will check the screen first.