Quoted from Agent_Hero:I understand. I've done it that way as well. When everything is connected and in test mode, I can activate "Shot" and feel the motor engage as if it should move the tongue, but it doesn't. The gear and the bar that the gear rests on doesn't spin unless I manually move the tongue. The motor never seems to activate a lock function to keep the tongue in place.
I was talking about how when both the old mechanism and new mechanism are disconnected from the machine the old mechanism's motor seems to be locked into place--the only way to move the tongue in and out of the old mechanism is to use pliers to turn the gear which seems to be forcefully grinding the gears of the motor. On the new mechanism, it can be moved freely, so I was assuming that the new motor's locking mechanism is now faulty.
Sounds like your gearbox is jammed up.. sounds like a replacement motor/box is in your future.