With a polar mount setup you must find your true south satellite which is 83.0 west. The transponders I gave you are active and you will get quality and signal when you find it. Make small movements. It's normal to have a signal of 45% and quality of 5 to 7% when you are not on the satellite. You should use a small tv and move receiver and tv near dish. Be sure to use RG6 cable RG59 will not work.
You can they to move the elevation up and down some too. I know it's frustrating setting up you first system. Did you try 5175 if you have that lnb. After you lock your true south satellite you use the Actuator to move the dish and it will track the arc the satellites are in known as the Clarke's Belt. That is why the true south satellite is set at the polar mounts Zenith or highest point in the arc.