Disconnection and Storage
5-2 ULVAC CRYOGENICS INCORPORATED
Loosen the union nut using two spanners and disconnect the flexible
hose by hand.
Figure 5-1 Disconnecting Flexible Hose
5.2 Storage
◆ Follow the instructions below to store the compressor unit.
1. Disconnect the flexible hoses. Refer to Section5.1.
2. Disconnect cables and cooling water piping.
Cooling water must be purged from the compressor unit.
Refer to Section3.3.
3. Put the protective caps back on the helium gas connectors and cover
the compressor unit with vinyl sheet as they were shipped.
4. Avoid direct sunlight, heat, humidity, vibration, radiation, dust,wind a
nd rain.
5. The compressor unit should be placed on level floor (within ±5°) an
dfixed not to move and/or fall.
6. Check the pressure gauge of the compressor unit periodically. Contact o
ur Service Engineering Division or the nearest customer support center
if the pressure keeps lower. There is a possibility that a leakage mig
ht have occurred.
Loosen the nut with a
spanner.
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