thanks for everyone's help, i finally got the machine working!
the piece which engages the lower safety switch was not coming up far enough to do so. i bent it up a little bit, and now the error is resolved.
after reading LA TECH's reply about the specific positions of the switches i found this pdf:
IIS 7.5 Detailed Error - 401.2 - Unauthorized
it's pretty huge (63mb), so it may take a while to load. i did find this page (i'll attach screenshots) which illustrate where the safety switches are:
Screen Shot 2014-05-31 at 2.28.05 PM.jpgScreen Shot 2014-05-31 at 2.28.26 PM.jpg
I'm not sure how to upload full-res photos, so these are smaller than i expected... anyways, the switches are positioned as LA TECH describes. to access both you need to remove the plastic casing – from around the green led, and the back of the case to access the lower one. my experience was once both are depressed the error went away.
thanks again for everyone's help!
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