Wiper Arms

Prior to wiper arm installation, turn on wiper switch to operate wiper motor and then turn it "OFF" (Auto Stop).
Lift the blade up approximately 100 mm (3.94 in) and then set it down onto glass surface to set the blade center to clearance "L1" & "L2" immediately before tightening nut.
Eject washer fluid. Turn on wiper switch to operate wiper motor and then turn it "OFF".
Ensure that wiper blades stop within clearance "L1 "& "L2".
- Clearance "L ₁ " : 27.5 - 42.5 mm (1.08 - 1.67 in)
- Clearance "L ₂ " : 34.5 - 49.5 mm (1.36 - 1.95 in)
Fig 1: Setting The Blade Center To Clearance "L1" And "L2"
Courtesy of NISSAN MOTOR CO., U.S.A.
- Tighten wiper arm nuts to specified torque.
  - Front wiper : 21 - 26 N-m (2.1 - 2.7 kg-m, 16 - 19 ft-lb)
- Before reinstalling wiper arm, clean the pivot area as illustrated. This will reduce possibility of wiper arm looseness.
Fig 2: Cleaning Pivot Area
Courtesy of NISSAN MOTOR CO., U.S.A.