Chapter 6: Maintaining Your Freeze Dryer
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48
Original instructions
6.
Check the collector chamber for condensed or frozen solvents and dispose of
appropriately. Completely empty the collector chamber before the next run or
before attempting to start the vacuum pump.
7.
If sample valves leak or stems become difficult to turn, pull the stem out of the
rubber valve body and apply a thin coat of vacuum grease to the stem.
Reinsert the stem into the valve body.
Monthly:
1.
The rubber components on the Freeze Dryer may eventually deteriorate and
require replacement. The effective life of rubber parts depends upon both their
usage and the surrounding environment. Check all rubber hoses and gaskets
and replace any that show signs of hardening, permanent set or deterioration.
2.
Using a soft cloth, sponge or chamois and a mild, non-abrasive soap or
detergent, clean the acrylic chamber lid.
3.
Using a soft cloth, sponge, or chamois and a mild, non-abrasive soap or
detergent, clean the exterior surfaces of the Freeze Dryer. Liquid spray
cleaners and polishes may be used on the exterior surfaces. Do not use
solvents to remove stains from the exterior surfaces as they may damage the
finish.
Annually:
1.
Every 12 months, or more often if the Freeze Dryer is operated in a dusty
environment, the refrigeration system condenser should be cleaned. Using a
vacuum cleaner with brush attachment, clean the condenser to ensure proper
airflow for peak performance.
