Microtome Cassette Clamps Orientation Lever. More useful histology equipment repair tips! September 17, 2019 admin Blog, videos Related Posts VIP Tissue Processor Maintenance – Wax Overflow. Histology Equipment Repair Game of Tones! How to Reset Thermo Microm HM 525 Cryostat – Chamber Temp Is Above Room Temp How to Manually Turn off and on the Chamber Cooling for Leica Cryostats