The replacement of the alternator belt pulley must be carried out in the following order. Prepare fixture «12.7.110». Remove the alternator drive belt. Depending on the version of the generator, hold the generator shaft against rotation with a hexagon socket wrench, a multi-toothed socket wrench or a Torx key. Loosen the pulley nut using the tool «12.7.110» (pic. 3.170) and remove the pulley.
When installing the pulley, tighten its fastening nut to a torque of 70 Nm (7.0 kgf·m).