Buchi SpeedDigester K-436 Manual de usuario descargar pdf (Pagina 45)

7 Maintenance and repairs

45 K-425 / K-436 Operation Manual, Version A

7.5 Rack system

To prolong the lifetime of the racks, rinse them with water thoroughly to remove possible acid resi-

dues. Subsequently, clean the racks with non-abrasive cleaning agents (e.g. soapy water).

7.5.1 300 ml sample tube support spring

The 300 ml tube rack is equipped with six sample tube support assemblies. Each assembly includes

a circular spring and a black plastic retaining ring with notches. Three of six notches are equipped

with small brackets — to release the spring gently squeeze the retaining ring and lift it off the rack. For

installation simply push the ring and spring assembly in.

Note

Keep the springs clean to avoid corrosion.•

Regularly check the spring force for signs of wearing. Inserted glasses must not squeeze the •

spring assembly signiﬁcantly.

Exchange 'Set circular spring and holder' (order no. 11055984) in case of leakages between •

sample tube and suction module.

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Buchi SpeedDigester K-436 Manual de usuario Pagina 45