PGC5000
PGC5000 Series Service Instructions 7 Subassembly repair
SI/PGC5000-EN, Rev B 63
7.6 Liquid sample valve repair
The analyzer’s sample lines are connected to the liquid sample valve as shown in Figure 7.8.
Fig. 7.8. Liquid Sample Valve
It is also important to use two wrenches when tightening the sample line connections. One wrench must be used to back up
the force applied to tighten the fitting. Direct wrench force (not using a back-up wrench) will damage the seals and possibly
bend the stem.
Sample will spill or leak out during this procedure. Consult MSDS sheets on file at your location for safety
requirements.
Sample valve repair may necessitate the venting of flammable substances into the atmosphere
surrounding the analyzer. Remove power from all sources of ignition in the immediate area. Do not
open any purged enclosures that remain powered.
Ensure proper safety equipment is worn, such as rubber gloves and face shield or safety glasses.
It is the customer’s responsibility to ensure that the area is safe and and hazard-free, and will remain so
the entire time the analyzer is open. This responsibility includes ensuring adequate ventilation in
analyzer shelter and obtaining proper work permits, etc.
To ensure the integrity of the components within the Liquid Sample Valve (LSV), use the tools in LSV Tool
Kit 791K009-1 when assembling or disassembling the LSV.
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