You will need: head «at 21», knob, hex key «for 8».
1. Remove the alternator from the vehicle (see «Removal and installation of the generator»).
2. To loosen the pulley nut, hold the rotor shaft from turning with a hex key. For this, a hexagonal hole is made in the end of the shaft.
3. Install the head on the nut and through its hole, insert the hexagon into the shaft hole. Unscrew the nut with the head, keeping the rotor from turning; remove the spring washer and pulley.
4. Install the new pulley in the reverse order of removal. The spring washer must be installed with the convex side facing the nut. Tighten the nut to a torque of 39–62 Nm (3.9–6.2 kgf·m).