Buchi KjelDigester K-449 Manual de usuario descargar pdf (Pagina 51)

7 – 51Operation Manual KjelDigester K-446/K-449

7 Maintenance

bTasks

NOTICE

Risk of sealing damage by sharp objects.

The sealings can be damaged by the use of sharp objects.

1. Do not bring sealings in contact with sharp objects.

2. Use ethanol or soapy water as detergent only.

3. Do not lubricate sealings.

1. Hold back the suction tubea and pull down the sealingc by hand.

NOTE

Replacing the sealing under running, warm water will ease the removal.

2. Remove the springb.

3. Install the spring and sealing in reverse order.

7. 4 Fuse power supply, replacement

WARNING

Risk of electric shock with connected power supply cable!

Serious injuries or death can result.

1. Switch off the device

2. Disconnect the power supply cable from the device.

1. Switch off the main switch.

2. Disconnect the power supply cable from the device.

3. Unscrew the fuse carrierb.

∙ Make sure the O-ring on the fuse carrier is not damaged.

4. Replace the defective fusea.

5. Screw in the fuse carrier.

6. Connect the power supply cable.

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Buchi KjelDigester K-449 Manual de usuario Pagina 51