OPERATION MANUAL Sumitomo Heavy Industries, Ltd.
SRDK Series CRYOCOOLER 45
5-2 COLD HEAD MAINTENANCE
5-2 COLD HEAD MAINTENANCE
The Cold Head is required to replace the sliding parts inside every 10,000 Hrs. This is not a user’s
Maintenance. Replace the Cold Head completely at site and return it to Sumitomo Heavy Industries, Ltd.
for refurbishment.
5-3 COMPRESSOR UNIT MAINTENANCE
“IMPORTANT”
See “TECHNICAL INSTRUCTION” of Compressor Unit used, for detail of the Compressor Unit
maintenance.
The Compressor Units are required to replace Adsorber every 20,000 Hrs. The Adsorber is compatible
for both air-cooled and water-cooled Compressor.
FOR “AIR COOLED” COMPRESSOR
It is important to keep the heat exchanger clean. It is required to clean the heat exchanger once a year.
However, if the room is dirty and/or dusty, it will be required to clean the heat exchanger more than once
a year.
FOR “WATER COOLED” COMPRESSOR
The Compressor requires cooling water. The quality of the cooling water should meet the specification
described “TECHNICAL INSTRUCTION” of Compressor Unit used. It can be required to clean the
cooling water line inside/outside the Compressor, if the cooling water is insufficient.
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