NcSTAR DLB140R - Manual (Page 8)

Lithium Battery type CR2032 only. Twist the Battery Cap (6) back on to the
Rheostat Knob (5) and hand tighten. Avoid using tools (such as pliers) to perform
this procedure as this may cause damage to the unit.
CARE AND MAINTENANCE
Your DLB140R is a sealed unit, please do not attempt to take it apart or clean it
internally. The exposed optical lens surfaces will perform their best if they are routinely
cleaned with a lens brush and the lens cloth provided with your sight. For a deep
cleaning, you can also use high grade camera lens paper and camera lens cleaning
solutions. Never use any other type of materials or solvents other than those designed
specifically for optical lenses to avoid damaging your sight. Clean the outer portion of
the lens cavity first with cotton swabs, clearing as much debris and dust as possible.
Then, gently clean the lenses using a circular motion starting in the center and ending at
the edges. Do not rub the lenses continually, simply wipe in short circular patterns.
Maintain the exterior surfaces of the scope by removing dirt or sand by using a soft brush
or a soft, dry cloth. You can also use a silicone treated cloth to restore luster and protect
the scope against corrosion. Be careful not to touch any of the lenses with the silicone
cloth. When not in use, always store your sight in a dry place with lens covers on to
prevent scratches to the lenses.
If you are not sure about any of the procedures in this manual,
always seek the help of a qualified professional to avoid damage to
your scope and your firearm.