Here is a source for manuals. Recheck your model no. to see if you left a couple digits out.
http://www.sewingpartsonline.com/ken...FQp75Qodd0Ga1w
As this guide suggest, if you are not sure where to oil, take the machine in for service & ask the tech to walk you through how to maintain your machine.
http://www.ehow.com/how_5697625_oil-...g-machine.html