77
HistoCore BIOCUT
Troubleshooting
7
Problem
Possible cause
Corrective action
"Stripes" in sections
For the two-in-one blade holder
E
• Paraffin accumulated on the
rear side of the blade and the
rear pressure plate of the knife
holder.
• Retraction is not selected.
• The clearance angle is too
steep, as close to zero degree.
• The blade has nicks in the
cutting edge.
• Remove paraffin from these
areas regularly.
• Activate the retraction
function.
• Adjust the clearance angle.
• Exchange the blade.
Noises during sectioning
The knife "sings" when
sectioning hard specimens. The
sections show scratches or
chatter marks.
• The sectioning speed is too
fast.
• The clearance angle is too
wide.
• Insufficient clamping of
specimen and/or knife holder.
• Retraction is switched off
during sectioning of resin /
plastic embedded specimens.
• Turn the handwheel at a
slower speed.
• Systematically decrease
the clearance angle until
the optimum adjustment is
obtained.
• Check all screw and clamp
connections on the specimen
holder system and the knife
holder. If necessary, tighten
the levers and screws.
• Switch on retraction.
High blade consumption
• Too great of a sectioning force
was applied.
• Too sharp clearance angle.
• Adjust the sectioning speed
and/or section thickness when
trimming. Select a smaller
section thickness, rotate the
handwheel more slowly.
• Adjust the clearance angle.
7.2
Instrument malfunctions
Problem
Possible cause
Corrective action
There is no further feed motion
and thus no sectioning.
• The front end position has
been reached.
• Run the specimen back by
turning the coarse feed wheel.
Содержание HistoCore BIOCUT
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Страница 47: ...47 HistoCore BIOCUT Setting up the instrument 5 ...
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