Chapter 6: Maintaining Your Freeze Dryer; Service Safety Precautions; Routine Maintenance Schedule - Labconco FreeZone 70020 Series User Manual

C
HAPTER
M
AINTAINING
D
RYER

Service Safety Precautions

 Always ensure that only authorized technicians service the refrigeration,
vacuum and electrical systems.
 If performing any electrical maintenance, always disconnect the power at
!
the main disconnect.
 If the refrigeration system must be operated with access panels removed
(for diagnostic purposes only), stay clear of moving fan blade.
 Always practice team lifting when moving heavy equipment.
 After servicing, verify that all access panels or covers are in place before
resuming normal operation of the equipment.

Routine Maintenance Schedule

Under normal operation, the Freeze Dryer requires little maintenance. The
following maintenance schedule is recommended:
As needed:
1. Clean up all spills; remove liquids from the chamber.
2. Clean lid and gasket using soft cloth, sponge or chamois and a mild, non-
abrasive soap or detergent.
3. Check oil level of the vacuum pump. It should be between MIN and MAX. If
the oil level is less than an inch (25.4 mm) above MIN, add oil to proper level.
4. If oil shows cloudiness, particles or discoloration, drain the pump and replace
with fresh oil.
5. Utilization of acids requires immediate cleaning and neutralization after a
run or physical damage to the collector chamber and collector coil will
result.
Product Service 1-800-522-7658
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Original instructions
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