I have an older HP 8970B which is however in good condition. Just one thing is annoying, the fan is very noisy and makes a loud squeaking noise. I guess the bearing has become bad.
As this fan is 115V (even though the insrument is used with 230V) it's not that easy to get such a fan replacement in Europe. Has anyone some advice how to get the fan quiet? Some oil at the right position? So far I did't tear down the fan as I don't want to berak it...
