Leica Biosystems RM2235 - Manual (Page 66)

64 Instructions for Use V 1.8 RevC – 09/2013
7. Troubleshooting
In the following table there is a list of the most common problems which can arise while work-
ing with the instrument, along with possible causes and troubleshooting procedures.
Problem Possible cause Corrective action
7.1 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.
• The blade, knife holder or orien-
tation is not clamped properly.
• The specimen is not clamped
properly.
• Reclamp the blade, knife holders
or orientation.
• Check that the cassette is se-
curely clamped in the universal
cassette clamp.
• If the universal cassette clamp
is soiled by wax, clean the uni-
versal cassette clamp ( refer
to Chapter 8.1 – "Cleaning and
maintenance – Universal Cas-
sette 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 cas-
sette clamp is configured in-
correctly or is defective. In this
case, have Technical Service
inspect and reconfigure the uni-
versal cassette clamp.