[GerhardH]

5. Fill power steering pump with new fluid recommended for your vehicle,
6. While having someone watch the fluid level and adding fluid to the pump (Keep fluid above top of pump casting) crank the engine over using the ignition switch.
...
10. While you are cranking the engine over, turn the steering wheel lock to lock slowly at least 4 times to bleed the system, if you see any bubbles or foam enter the pump; stop and let the system rest until all bubbles has dissipated.

Have done alone and to fast :-(
Bubbles foam noises and additional waiting time.