BUCHI Extraction Unit E-816 HE - Manual (Page 45)

7 Maintenance and repairs
45 E-812/816 Hot Extraction Operation Manual, Version B
• Provide a vessel to collect the outflowing
solvent.
• Remove the solvent screw on the left bottom
side by means of a hexagonal socket or a flat
pincer.
Fig. 7.1: Emptying the solvent tank manually
7 .2 Weekly maintenance
7 .2 .1 Heating elements
The ceramic heating plates should be cleaned regularly after they have cooled down. Remove dirt
adhering to the plate with e.g. ethanol. Then clean the plate with a moist cloth and dry it.
7 .3 Monthly maintenance
7 .3 .1 Cleaning the seals
NOTE
When replacing the seals, take care not to damage them. To avoid damaging the seals, never apply
grease and never touch them with sharp objects.
To prolong the lifetime of the seals, rinse them regularly with distilled water. Afterwards, dry them with
a soft cloth.