NavigationCMM supportCMM knowledgebaseLegacy productsSFP1 legacy probeSurface finish probe installation and user's guideMaintenanceOptical windows maintenanceRack port maintenanceSFA maintenanceNavigationCMM supportCMM knowledgebaseLegacy productsSFP1 legacy probeSurface finish probe installation and user's guideMaintenanceOptical windows maintenanceRack port maintenanceSFA maintenanceSFA maintenancePeriodically visually inspect the SFA for scratches.