How to use juice extractor for orange?

Could you please elaborate on the steps involved in using a juice extractor to extract juice from an orange? Are there any specific precautions I should take? Also, how do I clean the juice extractor after use to ensure it stays in good condition for future use? I'm particularly interested in the process of preparing the orange before inserting it into the extractor, as well as any tips you might have for maximizing the yield of juice. Thank you in advance for your guidance.