Withdrawal
1. Remove the radiator fan diffuser (or just the top).
2. Remove the accessory drive belt.
3. Using a puller, remove the pump pulley.
Installation
1. Install the pulley on the power steering pump shaft.
2. Using a drift, press the pulley onto the shaft.
3. Make sure the pulley (1) stands flush with the shaft (2) pump (with a tolerance of±0.25 mm).
4. Install the accessory drive belt.
5. Install the radiator fan diffuser.