Replacing The Supply Fitting On A Type 1 Flow Manifold - Agilent Technologies 6890 Series Service Manual

Gas chromatograph

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Split/Splitless Inlet

Replacement procedures

Remove the plumbing block from the front of the manifold (one captured

Torx T-10 screw). Replace the three rubber O-rings behind the block if

they are worn or damaged.

Remove the long screw (Torx T-20) from the top of the manifold and slide

the manifold out of the back of the GC.

Reinstallation is the reverse of removal.

Replacing the supply fitting on a Type 1 flow manifold

Carrier gas enters an inlet EPC flow manifold through a fritted, stainless steel

fitting. If the frit in this fitting clogs and cannot be cleaned, replace the

assembly as a whole. Remove the two screws attaching the fitting to the

manifold, replace the O-ring behind the fitting, and install a new fitting.

To clean the supply fitting frit, use solvents and/or an ultrasonic bath, then,

dry the supply fitting with an N

Figure 210-12

or air stream.

Replacing the supply fitting

Agilent 6890 Gas Chromatograph Service Manual

6890a 6890 plus