Leica Biosystems CM1860 UV
Leica Biosystems · Model CM1860 UV
Minimized potenital biohazardous exposure Less maintenance - more consistent sections Special blade holder.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Cryochamber will not reach or hold temperature
HighSymptoms: Chamber warmer than set point, heavy frost, poor sections.
Root cause: Refrigeration system weak or low on refrigerant, frost on the evaporator, or a door / window seal leak.
Poor sectioning quality
MediumSymptoms: Sections smear, splinter, chatter or roll up.
Root cause: Dull blade, mis-set / misaligned anti-roll plate, wrong chamber temperature for the tissue, wrong clearance angle, or specimen-head backlash.
UV disinfection cycle fault
MediumSymptoms: The integrated UVC decontamination cycle does not run or ends early.
Root cause: UVC lamp at end of life, a lid / interlock not closed, or the UV-cycle control.
Motorised sectioning / feed fault
MediumSymptoms: Motorised feed will not advance, section thickness drifts.
Root cause: Feed motor, encoder, or the control board.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Refrigeration compressor
Sealed-system work; refrigeration certification required.
Class Major service partRel. cost $$$$R&R Expert-level
UVC decontamination lamp
Class Frequent wear itemRel. cost $$R&R Moderate
Disposable microtome blades
Class ConsumableRel. cost $R&R Easy
Anti-roll guide / plate
Class Periodic replacementRel. cost $R&R Fairly easy
Feed motor / encoder assembly
Class Major service partRel. cost $$$R&R Difficult
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Refrigeration compressor Sealed-system work; refrigeration certification required. | Major service part | $$$$ | Expert-level |
| UVC decontamination lamp | Frequent wear item | $$ | Moderate |
| Disposable microtome blades | Consumable | $ | Easy |
| Anti-roll guide / plate | Periodic replacement | $ | Fairly easy |
| Feed motor / encoder assembly | Major service part | $$$ | Difficult |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Chamber will not get cold enough
- Manually defrost fully and dry the chamber and evaporator.
- Inspect the door / window seal.
- Restart and time the pull-down to set point.
- If it will not reach temperature, refer for refrigeration service.
- Verify a stable holding temperature before sectioning.
Symptom: UV cycle will not run
- Confirm the lid is closed and the interlock is made.
- Check the UVC lamp and its connections.
- Replace the UVC lamp at end of life.
- Restart the decontamination cycle.
- Confirm it runs to completion.