I pulled the pin out from the arm that connects to the inching cylinder, operated it by hand. Also, I pulled the trans cooler line from the trans & pump would not pump oil. For some reason, the trans pump will not make pressure. I pumped oil through the oil cooler lines to try and prime the pump. That did not work either. Removed inching cylinder spool, checked all 3 springs. They were fine. I am out of tricks.