1. The film from pitch and dirt formed on brushes, reduces efficiency of their work therefore brushes need to be washed out clear water with soap from time to time. |
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2. In the mechanism of the drive of brushes of screen wipers fastening bolts therefore when checking brushes of screen wipers it is also necessary to check and tighten all fastenings (on a photo – tightening of a nut of fastening of the lever of a screen wiper) can weaken. |
3. If rubber elements are worn-out, cracked or deformed or badly purify glass, they need to be replaced with new. |
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