Instruction manual

Page 27 Leica EM CPD030 Operating Manual 09/09
6. Basic Maintenance
As precondition for this work, the user must be familiar with Chapter 2-5.
Prior to opening to maintenance work it is crucial to close the C02 gas bottle,
disconnect the gas line and disconnect the mains cable.
6.1 Screw-on Cover of Specimen Pressure Chamber
Periodically check the seal of the screw on cover and replace if necessary.
6.2 Porous Filter in Medium-Inlet
The porous filter built into the medium inlet for the transition liquid MEDIUM IN has
to be cleaned periodically in an ultrasonic bath. After closing the shut-off valve of the
gas pressure bottle and removing the connecting hose (hex-wrench SW 17), the
porous filter can be screwed out anti-clock wise with the lamp extractor which is part
of the tool-set.
6.3 Pinhole Diaphragm in Medium-Inlet and Medium-Outlet
Clean the pinhole diaphragm (see 1 in picture) installed in the inlet MEDIUM IN and
MEDIUM OUT if it has dirt blockage. After removing the connecting hose and the
porous filter (for medium-inlet only), screw out the pinhole diaphragm from the inlet
(screwdriver no. 4) and clean it in an ultrasonic bath.
Main switch