Click the Last Maintenance date to update when the last maintenance was performed

Click the Task to EDIT the long description of this task

Click here to add a new item to the Hall D maintenance maintainer

TASK	Primary Contact	Secondary Contact	PERIOD (days)	NEXT MAINTENANCE	LAST MAINTENANCE
Hall D LCW Filter	dallen@jlab.org	bunton@jlab.org	350	08/14/24	08/30/23
NOTE: A WATER SAMPLE MUST BE GIVEN TO RADCON PRIOR TO DRAINING THIS SYSTEM. Replacement Filter Bag- 5 microns 1- Open by-pass valve for Filter System. 2- Close Inlet valve to Filter Housing. 3- Close Outlet valve at Filter Housing. 4- Open Drain valve at bottom of housing. 5-When Gauge shows no pressure,open Bleeder valve at top of the Housing,(by Gauge). 6- Drain Housing for 60sec. 7- Close Drain valve. 8- Loosen Hold Down Lugs in a criss/cross pattern,(to avoid warping Housing Cover). 9- Once all Lugs are loose, unlatch cover and raise using Factory installed crank. Swing Cover to the South side of Housing, 10-Unsrew Retaining wing nuts of the Two Positioning Plates and remove old Filter Bags. 11- Install new Filter bags and make sure they are fully seated. 12- Re-install Positioning Plates and wing nuts. 13- Carefully remove O-ring and clean Grove and O-ring. 14- Wipe bottom sealing side of cover and position into place. 15- Lower Cover into correct position to align with Clamps/Lugs. DO NOT SLIDE COVER! 16- Using a criss/cross pattern tighten Lugs down evenly. 17- Slightly crack the Inlet valve to allow the Filter Housing to fill with LCW. 18-After air has vented from Housing, close Bleeder valve. 19- Open Outlet valve. 20- Close By-pass valve. 21- Check for leaks around O-ring