Chainsaw Repair

I recently purchased a Stihl MS 170 used and it didn't come with any instructions.  I can't figure out how to lubricate the chain.  Is there a separate compartment in which to pour lubrication or do I add it to the chain each time I use it?  Or, is the oil in the oil compartment the only place in which to add oil for these chainsaws?

I'm sure it's obvious, I'm no lumberjack.  In fact, I never used on at all til I moved from Florida to Pennsylvania a few years ago.

THanks for any help.

Joe

Here is the 170 180 owners manual.  124 pages long.  Yes there is a area for bar oil to be put in and then one for the gas mixed with 2 stroke oil too. Mix gas and 2 stroke mix before putting in gas tank.

Stihl 170 180 owners manual  http://www.stihlusa.com/WebContent/CMSFileLibrary/instructionmanuals/ms-170-180-chain-saw-instruction-manual.pdf

Thanks very much Cut4fun. I see the oil compartment.  But is that the oil that is for cooling off the motor as well as lubricating the chain?

thanks a lot. i missed that.

update: i just actually got the opportunity to see what you were talking about.  the one up front was the one i saw before.  i thought that was the motor oil.