Replacing power steering pump

[cypeman]

Is there a "how two" for replacing a compact power steering pump on the site, I cannot find one.
If not, could someone advice me if it's an easy or difficult job and what surprises are in store for me?

[cypeman]

***update***
put aside a couple of hours to look at my power steering issue. I.e. Not working
checked fuse in battery compartment.Ok
took off all multi plugs to pump, cleaned all contacts, WD40 everything in sight, put back together.
topped up with fluid.
bada bing bada boom it worked, must have been a faulty connection in one of the plugs.
what I learnt:
look at the easy and obvious before replacing expensive parts.
this is one well chuffed bunny.