TECHNICAL INSTRUCTION Sumitomo Heavy Industries, Ltd.
CSW-71C 23
3-1 PERIODICAL MAINTENANCE
3-1-1 REPLACEMENT OF THE COMPRESSOR ADSORBER
<Warning about explosion, escape of gas>
This cryocooler (cold head, compressor unit, compressor adsorber, flex lines) contains a high-pressure (about 1.62
MPa helium gas sealed in. Hitting the equipment with a sharp edge or touching it with a pointed object may cause
explosion or escape of gas. Handle the equipment with extreme care.
Do not disassemble the equipment for purposes other than maintenance specified in this service manual under any
circumstances. Disassembling the equipment may result in electric shock, explosion or escape of gas.
The cold head, compressor unit, compressor adsorber and flex lines are pressurized with helium gas. Purge the
helium gas from all pressurized components before disposing. Open the purging valve gradually or it may result in
serious injury.
When scrapping the CryoCooler, handle it as Industrial Waste and pass it over to legally qualified disposer.
Install the cryocooler in the ventilated area, otherwise it may result in asphyxiation in case the helium gas is purged or
leaked.
The Adsorber weight is about 11.0kg. When replace the adsorber, be careful of handling so that it may not get hurt.
<Caution against misoperation>
Do not get on the compressor unit or put an object on top of it. Failing to observe this precaution may prevent the
cryocooler from operating normally or cause injury.
The Oil Mist Adsorber is required to replace for every 20,000 Hrs operation.
Table 3.3 ADSORBER FOR COMPRESSOR UNIT
DESCRIPTION Q’TY
PART NUMBER REMARKS
1 Adsorber 1 RE71TN0408
Table 3.4 REQUIRED TOOLS FOR ADSORBER REPLACEMENT
TOOLS REMARKS
1 1“ open-end wrench For Aero-quip coupling
2 1-1/8“ Open-end wrench For Aero-quip coupling
3 1-3/16“ Open-end wrench For Aero-quip coupling
4 Snoop liquid For leak check
5 Cotton wipers For leak check
6 13 mm Open-end wrench For fixing nut for Adsorber
7
Screw driver (phillips(+)) For side panel of Compressor Unit.
WARNING
CAUTION
WARNING
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