Operation
7-5
IMPORTANT
When connecting or disconnecting the flex lines, Cryomech recommends using a
small amount of Teflon spray lubricant. A can of lubricant is included with each
system. Before using the lubricant, you must read the instructions for its use.
Instructions are packaged with the lubricant and included in the Appendix of this
manual.
Figure 7-1: Disconnecting flex lines from a compressor package
11) Disconnect the Aeroquips on the high and low pressure fittings on the cold head by
turning the flexible line’s Aeroquip counter-clockwise with one wrench while holding
the cold head’s Aeroquip with the other wrench. See Figure 7-2.
Figure 7-2: Disconnecting flex lines from a cold head
12) Install the dust plugs (that originally came with the system and are stored in the tool
kit) on the female Aeroquip couplings attached to the helium flex lines.
13) Install the dust caps on the male Aeroquip fittings located on the compressor
package and the cold head.
14) Remove the reliquefier from it's mounting stand, taking extra care not to damage the
liquid helium return line.
15) Once removed, replace the Liquid return line protector and place the reliquefier in the
original packaging container.
16) Recoil the helium flex lines and prepare for transport or storage.
17) Assure that all components are stored in appropriate containers and location.
Hold this wrench to
prevent the cold
head’s Aeroquip
from loosening
Turn this wrench
Hold this wrench
Turn this wrench
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