Leica Biosystems CM1520 - Manual (Page 57)

Leica CM1520 – Cryostat 57
8. Troubleshooting
The battery is exchanged during routine maintenance.
If the customer has decided against a maintenance contract, the battery must be replaced after
7 years at the latest. All settings (time, defrost time, section thickness etc.) are lost when the
instrument is switched off.
There is no danger for the instrument. However, the customer must re-enter the setting values
after changing the battery.
8.3.1 Changing the battery
Problem Cause Remedy
No or insufficient refrigeration - Compressor defective.
- Leak in the cooling system.
- Inappropriate site conditions.
- Ventilation grilles of the condens-
er dirty.
- Call technical service.
- Call technical service.
- Check Installation site re-
quirements (item 4.1)
- Clean air inlet opening.
Scraping noise at the slot cover of
the microtome
- Friction between the slot cover
and the microtome housing.
- Apply cryostat oil to the slit
cover and distribute it by
moving the handwheel or
using a clean cloth.