Labconco FreeZone 6 Liter Benchtop Freeze Dry Systems 77520 Series - Manual (Page 17)

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Chapter 3: Getting Started
Product Service: Domestic 1-800-522-7658, International 816-333-8811
When using compounds in the Freeze Dryer that are hostile to the
materials of construction, it is imperative the equipment is
thoroughly cleaned after use.
• Rubber and plastic components that have been exposed to
damaging compounds should be removed and flushed with
water.
• The oil in the vacuum pump should be checked often. It must
be changed if it is cloudy, shows particles or is discolored. The
useful life of vacuum pump oil can be extended if the vacuum
pump is operated for an extended period of time after a freeze
dry run. This allows contaminants to be purged from the hot
oil. This must be done with the inlet to the pump blocked off
to prevent air from free flowing through the pump. This is
accomplished by closing all sample valves on a clean, dry
freeze dry system and turning on the vacuum pump. If the
pump is operated at an elevated vacuum level (> 10mBar), oil
may be expelled from the pump and damage could occur.
Another way to extend the life of the vacuum pump is to install an
optional secondary trap in the line between the Freeze Dryer and
the vacuum pump. Contact Labconco for ordering information.
With prudent maintenance the FreeZone Freeze Dry System will
provide years of service. Warranty on the affected parts will be
voided if maintenance has been obviously neglected. If you have
questions about using specific compounds in the Freeze Dryer,
contact Labconco Technical Service at 1-800-821-5525 or 816-
333-8811 or e-mail: [email protected].
Solvent Safety
Precautions
Solvents used in the Freeze Dryer may be
flammable or hazardous to your health. Use
extreme caution and keep sources of ignition
away from the solvents. When using flammable
or hazardous solvents, the vacuum pump must
be vented to or operated inside a fume hood.
!