BUCHI Distillation Unit K-355 - Manual (Page 28)

7 Maintenance and repairs
28 K-355 Operation Manual, Version G
7 .4 Half-yearly maintenance
7 .4 .1 Replacing the NaOH tube
We recommend to replace the NaOH tube every six months. The other tubes need to be replaced as
and when required.
7 .5 Yearly maintenance
7 .5 .1 Replacing the rubber bung seal
The seal is subject to wear and tear, thus you should check it regularly. We recommend to replace it
once a year.
7 .5 .2 Replacing the NaOH pump
We recommend to replace the NaOH pump once a year. The other pumps need to be replaced as
and when required.
7 .6 Customer service
Only authorised service personnel are allowed to perform repair work on the instrument. These
persons have a comprehensive technical training and knowledge of possible dangers which might
arise from the instrument.
Addresses of official Buchi customer service offices are given on the Buchi website under:
www.buchi.com. If malfunctions occur on your instrument or you have technical questions or applica-
tion problems, contact one of these offices.
The customer service offers the following:
Spare part delivery •
Repairs •
Technical advice •