Instrument Cluster Removal -- Help!

[Abner Mality]

The odometer needs a tune-up on my '80 300SD. I have searched the archives, and feel confident that I can make this repair.

My problem? I cannot find specific, detailed instructions for the removal of the instrument cluster.

I do not want to risk messing up this vehicle, but it seems every post having to do with guage or lighting problems simply state "remove the instrument cluster".

Can some kind soul help this old man out with clear, detailed instructions? Also, does my oil pressure guage have an oil line running to it? How do I remove and replace the oil line, if I have one, without causing a leak?

TIA