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4.5.2. Wear of brushes of a screen wiper

With guarantee to perform the functions, the rubber brush of a screen wiper has to nestle on glass densely. The term of its validity is limited.
Over time the brush is erased, influence of the atmosphere and ultraviolet rays destroy structure of rubber. Besides at the movement on a windshield microscopic cracks and scratches which influence quality of purification of glass are formed. Therefore in the spring and it is desirable to replace screen wiper brushes new in the fall.
Practically you are able to make all works on service of a screen wiper, in most cases only the screw-driver for this purpose is required. If you came to a conclusion that malfunction of a screen wiper consists in an electrical wiring, address the section "Electric equipment".