WebGuide:
Documentation Database
On this page, search for the camera's model number, click on your camera's Manuals and refer to the Clean up section of the Web Guide.
Example: For WV-X66700-Z3SLN
WV-S66700-Z3LN - 4. Clean up
Example: WV-X25700-V2LN
WV-X25700-V2LN - 4. Clean up

Installation guide:
Documentation Database
On this page, search for the camera's model number, click on the camera's Manuals and search for "Cleaning" in the Important Information.
PGQP2774UAC6_WV-X6533LN_II_en_1657600620.9015.pdf