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7.5. Vacuum Pump
7.6. Exhaust Filter
7.7. Cleaning
7.7.1.
Cleaning of the Freeze Dryer
58 • Maintenance
For maintenance of the vacuum pump please refer to the separate
operating manual.
Additionally, we would like to emphasise the following points:
The oil level of the vacuum pump must be regularly checked using the
inspection glass (in case of continuous operation at least once a
week). Top up oil to the required level via the oil inlet. Due to the
continuous operation with gas ballast oil consumption cannot be
avoided. For topping-up see the operating manual of the pump.
The first oil change must be carried out after approx. 100 operating
hours. Subsequent oil change intervals depend on the operating
conditions. In general, an oil change is necessary after approx. 500 to
1000 operating hours.
The oil change should always be carried out with warm pump.
If the unit is equipped with an exhaust filter (necessary if the exhaust
gases cannot be extracted into the open air or into a vent) take care
that the condensate in the filter does not rise too high. The
condensate is drained using a waste oil drain screw at the filter.
(Please refer to separate operating manual!)
Use soap water or other water-soluble, mild agents for cleaning of the
freeze dryer. Avoid corrosive and aggressive substances. Do not use
alkaline solutions or solvents or agents with abrasive particles.
Remove product residues from the ice condenser chamber using a
cloth. It is recommended that the lid to the freeze dryer or drying
chamber is left open when the freeze dryer is not in use so that
moisture can evaporate.
If there is the risk of toxic, radioactive or
pathogenic contamination, special safety
measures must be considered and adhered to.
Operating Manual Freeze Dryer ALPHA 1-2 LDplus
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