Hello everyone,

I hope to find firsthand knowledge by a user who "back then" or maybe even in the not too distant past installed an Agilent Quickswap CFT device onto his 597x transfer line.

Received such a setup "almost" complete bar small parts and a few restrictors. Most notably the "Transfer line locking nut" possibly P/N G3185-20501 was missing.

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I am uncertain as to the purpose of this thing (not explained in anything but name.

Two questions arise:
is it necessary to install this locking nut onto the transfer line and in front of the QuickSwap assy?

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The QuickSwap easily threads onto the transfer line, the restrictor passes through at the correct length.

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If it is required at all - what´s it for? Does it need to be dialled back in order to block the QuickSwap from moving out on the thread?

The manual explains: "lock nut remains against the end of the transfer line UNTIL AFTER leak test completion."

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There is no further mentioning as to what happens AFTER leak test completion.

I hope that one or the other does remember the installation.
Here´s a picture showing what it looks lke without that nut.

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Many thanks in advance to everyone trying to dig this up from memory. Have manual at hand if required.

Best regards
Farin