• Acknowledge the message.
• Change the oil of the vacuum pump.
• Reset the operating hour counter in the dialogue box "Vacuum pump oil
change" by way of the "reset" button.
Fig. 46: Dialogue box "Vacuum pump oil change"
Maintenance (4)
The maintenance interval of the freeze-dryer is set at 3,000 operating hours
or at least one maintenance per year.
When the end of a maintenance interval is reached, a corresponding
message will be displayed.
• Acknowledge the message.
• Make an appointment for the maintenance of your freeze-dryer.
• After the maintenance, our service engineer will reset the operating
hour counter in the dialogue box "Maintenance".