Center new filament in opening. Clean off filament housing. Mount filament housing. Check for resistance with ohmmeter. To prevent direct beam on image plate, put on IP1 or 2 erase.
Image plates are on a continuous role with blank spots facing the beam in the erase positions.
No side to side in microscope. Align up and down with x-ray intensity. Align microscope on pinhole. Direct beam on image plates to determine beam position. 300 and 70 mm.