Rankin Basics MCT45, Operator'S Manual

Page: 18 / 21

18
7. TROUBLESHOOTING
Problem Cause Suggestion
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 embedding.
In extreme cases, there are no
sections whatsoever.
1. Blade, knife holder or
orientation is not clamped
properly.
2. The specimen is not clamped
properly.
3. The blade is dull.
1. Re-clamp the blade, knife holder or orientation.
2. Check whether the cassette is securely clamped.
•
Clean the cassette.
•
Use other types of cassettes if the cassette is
disformed or its dimensions are not within the
specified tolerances.
•
The cassette clamp is configured incorrectly or is
defective. In this case, have Technical Service inspect
and reconfigure the clamp.
3. Laterally displace the knife holder or insert a new blade.
Section compression:
The sections are very
compressed, show folds or are
squeezed together.
1. The blade is dull.
2. The specimen is too warm.
3. The sectioning speed is too
fast.
1. Use another area of the blade or a new blade.
2. Cool the specimen before sectioning.
3. Reduce the sectioning speed.
Noises during sectioning:
The blade "squeaked " when
sectioning hard specimens.
The sections show scratches
or chatter marks.
1. The sectioning speed is too
fast.
2. The clearance angle is too
wide.
3. Insufficient clamping of
specimen clamp and/or blade
holder.
1. Reduce the sectioning speed.
2. Methodically reduce the clearance angle setting until you
have found the optimum angle.
3. Check all screw and clamp connections on the specimen
holder system and the knife holder. If
necessary, tighten the levers and screws.
Feed motion no longer occurs.
The cutting motor cannot be
started.
The specimen has reached the
extreme position of the front end.
When the specimen has reached the extreme position of the
front end, an alarm will be issued. Rock the small handwheel
to return the specimen to the beginning.
The screen is not illuminated
and no display when you turn
on the switch.
1. The wire of the display is loose.
2. The fuse is blown.
1. Have Technical Service check the connection of the wire.
2. Change fuse.