11. Care of the Comparison Macroscope
Cleaning Objectives
Caution:
The objective may not be unscrewed during cleaning. If damage appears on inner sur- faces, the objectives must be sent to your Leica subsidiary for repair. We also advise against cleaning the inside surfaces of the eyepieces.
The front lenses of objectives are cleaned as described under “Cleaning Glass Surfaces”. The upper lens is cleaned by being blown off with a pneumatic pump.
Removing Immersion Oil
Caution:
Follow safety instructions for immersion oil!
First, wipe off the immersion oil with a clean cot- ton cloth, and then
11.3 Handling Acids and Alkalines
For examinations using acids or other aggressive chemicals, particular caution must be taken.
!Caution:
Be absolutely certain to prevent the optics and mechanical parts from coming into direct con- tact with these chemicals.
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