1. Adjust leveling screws to ensure table is level
2. Adjust the eyepiece until the cross-threads are in focus
3. View a distant object with the telescope and adjust the telescope until the distant object is in focus
4. Illuminate the slit and view it through the telescope, move the slit relative to the collimator so that the slit is in focus
5. Adjust the width of the slit so that its image in the telescope is suitably bright