BSA Optics TW4X30 - Manual (Page 6)

indicator line on the spindle. Any further windage and elevation adjustments
can be made more precisely by calculating the amount of clicks from the zero
point.
5.) MAINTENANCE
DO NOT ATTEMPT TO DISSASEMBLE OR CLEAN THE SCOPE INTERNALLY.
IF THE SCOPE REQUIRES REPAIRS OR ADJUSTMENT, SEE WARRANTY
CARD FOR INSTRUCTIONS.
Start by brushing away dust and dirt particles from the lenses of the scope.
Using the included lens cloth designed to clean optical surfaces brush dust
or dirt particles away from the center of the lens towards the outside edges.
To remove minor smudges or fingerprints, start in the middle of the lens and
using a circular motion clean towards the outside edges of the lens. If more
aggressive cleaning is needed put a few drops of liquid lens cleaner on the
cloth. Store the rifle scope in a moisture-free environment.
NOTE: Not all cloth material like a handkerchief will remove smudges or
fingerprints. Round fibers found in many cloth materials will tend to spread
smudges and fingerprints. Use cleaning tools specifically designed for rifle
scope cleaning.
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Tactical Weapon™
TW4x30 SCOPE