Hall D Maintenance Status Long Description

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TASK Primary Contact Secondary Contact PERIOD (days) NEXT MAINTENANCE LAST MAINTENANCE
He Valve Membrane CK dallen@jlab.org bunton@jlab.org 180 10/20/24 04/23/24

1. Review the helium pressure in the Solenoids Distribution Box for the previous 30days looking for excursions higher than 1.6atms. 2. Inspect the plastic bag covers on the large Helium relief valves for damage. 3. If the pressure had reached higher than 1.6atms or the bag covers have damage inspect the membranes and make a log entry in the HDLog.