Notes on wiper arm adjustment - AH82.30-P-0001-01A

MODEL 171.4, 172.4, 190, 197, 203, 204, 205, 207, 209, 211, 212, 215, 217, 218, 220, 222, 230, 231, 240 

By checking the angle of incidence of the wiper arms in parked position and reverse position it can be assessed whether the wiper arm or the windshield wiper system needs to be adjusted.

• Adjusting wiper arm 

  In the event that the test values deviate from the tolerance range in reversing position or in parked position and reversing position. The angle of incidence is changed by "twisting" (crossing over) the wiper arms with the aid of the adjustment lever. The angle of incidence of the wiper arm always has to be adjusted in parked position.

  In doing so the angle of incidence in parked position and reversing position changes by the same amount. The angle of incidence of the wiper arm to be adjusted is changed by at least the value of the tolerance deviation in reversing position. To make sure that both adjustment values lie within the tolerance range, the angle of incidence has to be checked again in parked position and corrected if necessary.

• Adjust windshield wiper system 

  In the event that the test values of both wiper arms deviate from the tolerance range in parked position.