Installation
6-7
CAUTION
Do not allow the flex lines to come into contact with corrosives or any type of
commercial cleaning agent. Helium leaks caused by exposure to corrosives or
commercial cleaning agents will not be covered under warranty.
CAUTION
Do not bend the flex lines to less than 10 inch (25 cm) radius or permanent damage
may occur. This type of damage is not covered under the warranty.
1) Remove all dust caps and plugs from the helium flex lines, compressor package and
cold head and place in tool kit. Save dust caps and plugs for future use.
2) Make certain the flat gaskets are present and properly seated in the compressor’s
and cold head’s male Aeroquip fittings.
3) With a dry, clean lint-free cloth remove any visible particles from the ends of all of the
Aeroquip couplings.
IMPORTANT
On some models, the high-pressure and low-pressure helium flex lines are not
interchangeable due to the size of the Aeroquip couplings attached to the ends of
the flex lines. Before connecting the flex lines to the components, check the
Aeroquip couplings on the ends of lines to make certain they match the Aeroquip
couplings of the components.
4) With the wrenches supplied in the tool kit, connect a helium flex line to the low-
pressure port on the compressor package front panel. See Figure 6-6. The low-
pressure port is marked “Low.” Tighten the connector until a positive stop is felt.
When attaching the Aeroquip to the mating connector, make sure the threads are in
alignment before you tighten the connector.
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 Appendix B of this
manual.
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