www.microscopenet.com2ii. Care and Maintenance1. Do not attempt to disassemble any component including eyepieces, objectives orfocusing assembly.2. Keep the instrument clean; remove dirt and debris regularly. Accumulated dirt onmetal surfaces should be cleaned with a damp cloth. More persistent dirt should beremoved using a mild soap solution. Do not use organic solvents for cleansing.3. The outer surface of the optics should be inspected and cleaned periodically usingan air stream from an air bulb. If dirt remains on the optical surface, use a soft clothor cotton swab dampened with a lens cleaning solution (available at camera stores).All optical lenses should be swabbed using a circular motion. A small amount ofabsorbent cotton wound on the end of a tapered stick makes a useful tool forcleaning recessed optical surfaces. Avoid using an excessive amount of solvents asthis may cause problems with optical coatings or cemented optics or the flowingsolvent may pick up grease making cleaning more difficult. Oil immersion objectivesshould be cleaned immediately after use by removing the oil with lens tissue or aclean, soft cloth.4. Observe the specimen with the 4X, 10X and 40X objectives in order, then observethe specimen with the 100X objective. Apply the immersion oil on the slide cover withthe 100X objective. Do not let the immersion oil to contact with the dry objectiveslens (especially the 40X). Clean the dry objective lens using the lens cleaning paperif the immersion oil is on the dry objectives lens. Clean the 100X objective lens firstusing the lens cleaning paper after observing the specimen with the 100X objective,then clean the specimen. More persistent dirt should be removed using a little bitalcohol. Do not use organic solvents for cleansing.5. Store the instrument in a cool, dry environment. Cover the microscope with the dustcover when not in use.