elnan - that reminds me - this summer DH gave a 401 to our neice (she's a registered nurse). She sent a text last week saying the machine froze up and would not move.
I texted back and asked if she had been oiling it - she said no. I asked if she had read the manual we sent with the machine - and she admitted she sort of skimmed through it.
So I passed her off to DH so he could help her get it running again. He came and showed me a text she sent - she asked if it would be ok to use a rag to put the oil on the machine. Guess she thought it was sort of like oiling the butcher block cutting board!
BTW - she did get it up and running, sounds like it was thread jammed in the bobbin case. She does love that machine though!