7 Maintenance and repairs
55 K-439 Operation Manual, Version B
7.5.2 500 ml sample tube support spring
The 500 ml tube rack is equipped with a tube holder containing five sample tube support springs.
Each flat spring must be freely rotatable by a small amount. If swivelling is not possible, exchange the
rake!
Note
• Rinse the tube holder with water after use to avoid corrosion.
• Store it dry and clean after use.
7.6 Display cover
The display cover is equipped with double-faced adhesive tape. If it is strongly contaminated or
damaged, replace it with a new one.
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