A contaminated sparge cell can become a hidden source of purge-and-trap problems. In this video, I show how I replace the sparge cell on an OI Eclipse 4660 purge-and-trap concentrator. I cover: • Accessing the sparge cell assembly • Disconnecting the existing cell • Removing the dirty or contaminated sparge cell • Installing the replacement cell • Reconnecting the fittings and tubing • Checking the final installation before returning the system to service Because the sparge c

A dry scroll pump can lose vacuum performance as debris accumulates and the tip seals wear. In this video, I show how I clean an IDP3 dry scroll pump and replace the tip seals. I cover: • Opening the pump • Inspecting the scroll mechanism • Removing accumulated debris • Cleaning the internal surfaces • Removing the worn tip seals • Installing the replacement seals • Reassembling the pump • Preparing the pump to return to service Tip seals are wear components and play an impor

The MSD transfer line is the heated connection that carries analytes from the GC column into the mass spectrometer. In this video, I show how I replace the transfer line on an Agilent MSD. I cover: • Accessing the transfer line assembly • Disconnecting the existing transfer line • Removing the old transfer line • Installing and positioning the replacement • Reconnecting the assembly • Checking the final installation before returning the MSD to service The transfer line does n

Pumping an Agilent 5977 GC/MS back down after maintenance is the moment you find out whether everything was put back together correctly. In this video, I show the pump-down process after the MS has been opened for maintenance. I go through: • Closing the analyzer and establishing the initial vacuum • Starting Pump Down in Vacuum Control • Watching the foreline pressure decrease • Monitoring the diffusion pump, source and quadrupole status • Confirming the system reaches READY

In this hands-on video, I show how I replace the split/splitless inlet EPC pneumatic module on an Agilent 6890 GC. This repair involves going beyond routine inlet maintenance and accessing the internal pneumatic system of the gas chromatograph. In the video, I cover: • Opening the GC and accessing the EPC module • Disconnecting the pneumatic and electrical connections • Removing the old split/splitless inlet EPC module • Installing the replacement module • Reconnecting the sy

In this hands-on GC maintenance video, I show how I replace the top shell weldment on an Agilent 6890 split/splitless inlet. The top shell weldment is part of the inlet assembly and can require replacement when it becomes damaged, contaminated, or no longer performs reliably after repeated maintenance. In this video I cover: • Accessing the split/splitless inlet • Removing the existing top shell weldment • Disconnecting the associated inlet components • Installing the replace