Complete Handbook of Sewing Machine Repair: Amazon.co.uk: H HUTCHISON: Books (OOP Vintage book - should be good for all-metal vintage machines :)!) ***I found a PDF version for sale here http://sewingonline.co.uk/repair-manuals.html for £4.95***
How to clean and oil a vintage sewing machine Part 1: excellent tutorial, I learned a lot, not the same model as mine, but a heap of general tips. Clear instructions on how to clean and oil a vintage sewing machine. Make sure you watch Part 2 for the end result.