* To check & Adjust angel between windshield wiper arm and windshield
* Fixed adjustment tool at the front of the wiper arm, adjusting angel
with open-ended wrench (24mm) to suitable angel
* Suitable specification of arm:
LHD & RHD Vehicle, Driver's side: 1.5 Degrees +/- 3 Degrees
LHD & RHD Vehicle, Passenger's side: 1.7 Degrees +/- 3 Degrees
