I drained the oil again out of the the top transmission chamber, just to make sure there was movement out of the the plastic reservoir (there was). So I filled it to the "cold level line"and started the mower---no transmission movement at all!!! The mower won't go forward or in reverse. I shut down the mower immediately--let it set for 15 minutes--and tried it again without any forward or reverse.
I hope I am doing something wrong as I cannot believe the transmission is bad (although, it would be my luck). I have used the mower several times since I bought it and I felt the mower was slowing down (thus the reason that I decided to change the fluids).
Any suggestions would be greatly appreciated.