1. Check the operation and condition of the windshield and rear wiper blades (rear window cleaner installed on parts of cars), if defects are found, determine the cause and eliminate.
2. Brushes should be washed with a mild detergent solution.
3. Tighten loose wiper connections periodically.
4. To replace the brush, lift the brush holder assembly by the lever, wring out and remove the brackets and disengage the brushes from the lever and shaft (see photo).
5. Installation is carried out in the reverse order. The new brush must be exactly the same size as the one being replaced.