power steering leak on 1987 420 SEL

[RKreutzer]

Hi everybody,
I went under the car to see where the fluid is coming from that I see on the ground. Looks like the drop comes from the bottom of the steering pump (hope the picture will show up).
1.) Is this the drip-location when the leak is at the pulley shaft?
2.) Will the repair kit (o-rings and gaskets) talked about in the archives take care of this kind of leak?
3.) Any description available on how to (besides CD) and how to deal with the belt/tensioner, that seems to be hard to re-install.
All your help is appreciated.
Reinhard Kreutzer