Locating and focusing an object
1. Adjust light source with LPO
2. Make certain the diaphragm is open
3. Move the tube downward using the coarse adjustment knob
4. Look into the ocular and reverse the motion with the coarse adjustment
5. When swinging the high and dry objectives into position
6. When swinging into OIO, place small drop of cedar oil on the portion of the slide to be examined
7. To focus using OIO the fine adjustment must be moved very slowly