[. . . ] Read these instructions for use carefully before using the appliance and save them for future reference. If the mains cord is damaged, always have it replaced by one of the original type in order to avoid a hazard. The appliance is equipped with an automatic voltage selector and is suitable for mains voltages ranging from 100 to 240 volts. [. . . ] Every two months: shaving heads Switch the shaver off, remove the mains plug from the wall socket and pull the appliance plug out of the shaver. This is essential since each cutter has been ground with its corresponding guard for optimal performance. If you accidentally mix the sets up, it could take several weeks before optimal shaving performance is restored. Put the retaining frame back into the shaving unit (1) and turn the wheel clockwise (2). For extra thorough cleaning, clean the shaving heads by putting them in a degreasing liquid (e. After cleaning, lubricate the central point on the inside of the guards with a drop of sewing machine oil to prevent wear of the shaving heads. 1 Switch the shaver off, remove the mains plug from the wall socket and pull the appliance plug out of the shaver. Lubricate the trimmer teeth with a drop of sewing machine oil every six months. Replace the shaving heads every two years for optimal shaving results. Replace damaged or worn shaving heads with HQ55 Philips Super Reflex shaving heads only. 1 Switch the shaver off, remove the mains plug from the wall socket and pull the appliance plug out of the shaver. Put the retaining frame back into the shaving unit (1) and turn the wheel clockwise (2). The following accessories are available: - HQ55 Philips Super Reflex shaving heads. Throw the away with the C Do not household appliancethe end of its life, normal waste at but hand it in at an official collection point for recycling. [. . . ] If there is no Customer Care Centre in your country, turn to your local Philips dealer or contact the Service Department of Philips Domestic Appliances and Personal Care BV. The shaver has not been cleaned well enough or has not been cleaned for a long time. The shaver does not work when the on/off slide is pushed to position I. [. . . ]