Buchi K-355 - Periodic Maintenance (Half-yearly;Yearly)

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•