Leica Biosystems RM2265 - Manual (Page 75)

73 Leica RM2265
7. Troubleshooting
Problem Possible cause Corrective action
7.2 Possible faults
1. Thick/thin sections
The sections alternate between
being thick and thin, or there is
chattering in the sections, or the
specimen is torn out of the em-
bedding. In extreme cases, there
are no sections whatsoever.
• Blade, knife holder or orientation
is not clamped properly.
• Reclamp the blade, knife holder
or orientation.
• The specimen is not clamped
properly.
• Check that the cassette is se-
curely clamped in the universal
cassette clamp.
• If the universal cassette clamp
is soiled by wax, clean the UCC
(refer to Chapter 8.1 - "Cleaning
and Maintenance - Universal
cassette clamp" ).
• When using cassettes whose
lid is molded on, check that the
broken edge allows the cassette
to be clamped securely; if neces-
sary, remove burrs or clamp the
cassette into the universal cas-
sette clamp horizontally instead
of vertically.
• If the cassette dimensions are
within the specified tolerances
and the cassette still cannot be
securely clamped into place,
it may be that the universal
cassette clamp is configured
incorrectly or is defective. In this
case, have Technical Service
inspect and reconfigure the
universal cassette clamp.