Latest....we are able to go from 540e to 1000 without error and with no load. Hooked mower up, switched from 540e to 1000...no pto movement. Small grinding noise. Pto shuts off in 2 seconds. Last night, 1000 fully engaged but would shut off in 2 seconds. Im assuming the 1000 actuator is not fully engaging now. Where is it located? Outside housing or inside?