Changing The Battery - Leica CM1520 Instructions For Use Manual

Problem
Specimen disc cannot be
removed.
Cryostat non-operational.
Insufficient cooling capacity or
none at all.
Scraping noise at the slot cover
of the microtome.
Blade/Knife holder base can not
be clamped tightly.

8.3.1 Changing the battery

The battery is exchanged during routine maintenance.
If the customer has decided against a service 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 when
switching the instrument on for the first time after changing the battery.
Leica CM1520
Cause
• Moisture on the underside
causes the specimen disc to
freeze to the freezing shelf or
specimen head.
• Power plug not properly
connected.
• Circuit breaker is switched off. • Move the switch back to the
• Compressor defective.
• Refrigeration system leak.
• Inappropriate site conditions.
• Air inlet opening of the
condenser dirty.
• Friction between the slot cover
and the microtome housing.
• Insufficient clamping force of
the t-piece.
Troubleshooting
Remedy
• Apply concentrated alcohol to
the contact point or heat the
specimen head.
• Check if power plug is properly
connected.
upper click stop.
• Call technical service.
• Call technical service.
• Check installation site
requirements (→ P. 20 – 4.1
Installation site requirements).
• Clean air inlet opening.
• Apply cryo oil to the slot cover
and distribute it by moving the
handwheel or using a clean
cloth.
• Adjust the clamping force of
the t-piece (→ P. 39 – Adjust
the clamping force of the
t-piece).
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