[nightwing14]

So I just got a keg for free from a friend and it had been neglected for sometime so it is kind of crody on the outside and there was some wine in it that was quite old.  What should I do to get ready to put a brew in it.  Also I have no experience in kegging maintance at all so anything will help.

[mabrungard]

A hot soak with PBW will help.  Disassemble all the posts, poppets, and dip tubes.  Make sure the o-rings are replaced if you're concerned that the previous use will impart flavor to your beers.  Sanitize with StarSan.

[hopfenundmalz]

You might want to get the long skinny brush that can be used in the dip tube.  Same as a .22 caliber rifle cleaning brush I have been told.

Martin has good advice for the rest of the procedure.

[aviking427]

I would suggest getting some keg lube and putting it on the new gaskets. It helps keep them from getting dry and allows for a nice seal.

[boapiu]

You said you had no experience in keg maintenance. Do you have experience kegging? I ask because I just got started kegging and was surprised at the associated expenses - Co2 tank and regulator, faucets, etc. There was a back issue of BYO that addressed getting started and I thought was pretty good. Pressure testing your cleaned and refurbished keg is a good idea before you trust your brew to it.

[tumarkin]

good advice above for the functional aspects. just for appearance, if you want to get rid of the "crody" look; Bar Keepers Friend (it's non-abrasive) and a green scrubby pad work wonders.

[wingnut]

I have also used my oscilating sander with 400 grit sand paper followed by 1000 grit automotive paint sandpaper.  They sparkle and shine now!

[bluesman]

I also agree with Martin and Jeff...

hot rinse
disassemble all parts
brush out dip tube
hot PBW soak overnight
hot rinse
starsan
pressure check