The maintenance should be carried out at least twice a year and includes the following steps:
Wipe the exterior surfaces of metal and plastic parts off dust and dirt with a cotton cloth. To avoid damage to the paint coating, do not use chemically active substances, solvents, etc.
Clean the electric contacts of the battery pack and battery slots on the riflescope using a non-greasy organic solvent.
Check the optics of the eyepiece and the lens. If necessary, remove dust and sand from the optics (it is preferable to use a non-contact method). Cleaning of the exterior surfaces of the optics should be done with cleaners designed especially for this purpose.