[. . . ] Make sure that your hands are dry when you insert the batteries. €¯3) 2 Place two batteries in the battery compartment (Fig. Note: Make sure the + and - indications on the batteries match the indications in the battery compartment. [. . . ] 2 Clean the top of the appliance with the cleaning brush supplied (Fig. 3 Press the release button (1) and pull the shaving unit a straight up off the shaver (2) (Fig. 4 Clean the inside of the shaving unit with the cleaning brush (Fig. 5 Clean the hair chamber with the cleaning brush (Fig. Every two months: shaving heads Note: Do not use cleaning agents or alcohol to clean the shaving heads. 2 Press the release button (1) and pull the shaving unit straight up off the shaver (2) (Fig. 3 To remove the retaining frame, push the sides of the central spring towards each other (1). Then lift the retaining frame out of the shaving unit (2) (Fig. Each shaving head consists of a cutter and a guard (Fig. Note: Do not clean more than one cutter and guard at a time, since they are all matching sets. If you accidentally mix up the cutters and guards, it may take several weeks before optimal shaving performance is restored. 7 Clean the guard with the long-bristled side of the cleaning brush (Fig. €¯18) 8 Put the cutter back into the guard after cleaning (Fig. €¯20) 10 Put the retaining frame back into the shaving unit (‘click’) (Fig. [. . . ] If there is no Consumer Care Centre in your country, go to your local Philips dealer. Guarantee restrictions The shaving heads (cutters and guards) are not covered by the terms of the international guarantee because they are subject to wear. Troubleshooting This chapter summarises the most common problems you could encounter with the appliance. [. . . ]