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Digestion Unit K-4356 Maintenance
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2
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Figure 11: Changing O-Rings
6.5 Changing O-Rings
• Cut through the damaged washer with a knife of scalpel
• Remove the glass holder
• Draw the new washer over the suction module (cf. photo)
• Replace glass holder and secure with washer
6.6 Power Supply Fuses
The power supply fuses can be changed by following these
steps:
• Pull out the power supply cable
• Remove the fuse holder a
• Replace the fuse b with a new fuse of the same values:
- 230V: T 10A L 250V
• Replace the fuse holder
6.7 Customer Service
Work on or in the apparatus may be carried out only by
authorized service personnel. These are people with sound
technical vocational training and knowledge of the risks which
result when safety measures are disregarded. BÜCHI customer
service offices have service manuals specific to the various
apparatus; these manuals can be obtained only by authorized
personnel.
The addresses of the official BÜCHI customer service offices
are listed on the last cover page of these operating instructions.
If malfunctions arise or if you have technical questions or
problems in operating the apparatus, please consult these
offices.
BÜCHI’s customer service provides the following services:
• Spare parts service
• Repair service
• Maintenance service
• Technical consulting
Figure 12: Apparatus plug, built-in
a
b
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