[. . . ] You cannot use the shaver when it is charging, because the appliance does not work while its batteries are being charged. When charging for the first time or after a long period of disuse: leave the shaver to charge continuously for 12 hours. 4 To extend the lifetime of the batteries, remove the powerplug from the wall socket and pull the appliance plug out of the shaver when the batteries have been fully charged. The cartridges with moisturising NIVEA FOR MEN shaving emulsion are available in boxes containing five cartridges and one small plastic pump. [. . . ] Rinse the shaving unit and the hair chamber with hot water (60cC - 80cC) after every use. Clean the shaving unit and the hair chamber by rinsing them under a hot tap for some time. Never dry the shaving unit with a towel or tissue as this may damage the shaving heads. Make sure the inside of the shaving unit and the hair chamber have been cleaned properly. If the shaving unit becomes detached from the shaver accidentally, reattach it by pushing the hooks into the holes on the rear side of the appliance. Replace the shaving heads every two years for optimal shaving results. Press the release button to open the shaving unit and pull the shaving unit off the shaver. Hold the shaving unit in one hand and squeeze the S-clip in the centre of the retaining plate with the other hand and lift it out. Replace damaged or worn shaving heads with Philishave HQ167 Cool Skin shaving heads only. Whether you have a pouch or a cassette depends on your shaver version. The pouch has been designed to hold the appliance, its protection cap, two spare cartridges and the powerplug. The pouch is washable; wash it separately (see washing instructions on the inside of the pouch). The cassette has been designed to hold the appliance, its protection cap, five spare cartridges and the powerplug. Do not throw the batteries away with the normal household waste, but hand them in at an official collection point. You can also take the batteries to a Philips Service Centre, which will dispose of them in an environmentally safe way. Let the shaver run until it stops, undo the screws and open the shaver. Do not connect the shaver to the mains again after the batteries have been removed. The shaver comes with cartridges containing two different kinds of shaving emulsion: an emulsion for a sensitive skin and a fresh gel. [. . . ] Cause 1: your skin has not yet become accustomed to this shaving system. Allow 2-3 weeks for you skin to get accustomed to this shaving system. If the irritation does not disappear after 24 hours, we advise you to stop using the shaving emulsion and to contact your doctor. If you need information or if you have a problem, please visit the Philips Web site at www. [. . . ]