[Histonet] microtome calibration

[Dianne Holmes]

Has anyone had problems with the calibration of an A/O Spencer sliding microtome?  I have used this one for years and now I am getting 'thick-thin' sections?  I thought maybe the accumulation of oils in the mechanics of it have slowed things down.  Can WD40 be applied without adverse effects?  I certainly would not attempt opening up all the gears!!  Any suggestions would be appreciated or if a medical equipment repairman is reading this - I really need this thing fixed.


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