Dreamer2009, go read your manual and look under the page where Maintenance is and there should be a page on how to oil your machine. I will go google and see if I can find it.
I couldn't find a free manual either. You should have a troubleshooting page in your book and look at noise or something. Then it walks you thru.
The only time mine chirps is when I don't clean under the bobbim and blow it out after each use. Hope someone can help you. If not, take your book with you monday if you go the the LQS and ask.