I don't know if all motors are the same, but the Stab HH90 has markings on one side to set your Latitude. Then set the satellite elevation as normal. Be sure the motor is in the ZERO position, if not make it so. You will have to dig out your manual to see how to do that. Hopefully, that is all working correctly.
Now in your receiver make sure you are set to your Southern Most satellite and on an active transponder and that you have the motor set to USAL (that is assuming you have an USAL motor). I am not familiar with that type of satellite meter, but if it uses transponders/frequency be sure it is set to an active transponder. Now, if you were real careful and a bit lucky, and had the dish and motor, when set to zero, pointing DUE TRUE SOUTH, you should have at least some hint of signal. If not, move the entire assembly on the pole, left or right hoping to find some signal. If you don't get any signal, adjust the dish either up or down, about 1 degree and repeat the left/right procedure. If you still strike out, then try another degree in the same direction and repeat the left to right. If you don't get anything in about three degrees of up/down adjustment, it is time to try the other direction. If you were going up with the dish, go back to your start point and go down by one degree and repeat the above.
Once you find a signal, peak it out and then MAKE SURE YOU ARE ON THE SATELLITE YOU THINK YOU ARE ON. If not, then you have to back up and redo.
Remember, that it takes very fine adjustments. A little bit here on earth, is a LOT at the satellite. Be patient, slow and pay attention to detail and you will get it.
Good luck.