MSD Machine Operations Report Summary Friday, April 7, 2023 Proton Source 1. Mechanical/Vacuum a. Nothing to report 2. Fluids a. The Debuncher water skid was turned on Thursday morning Main Injector/Recycler 1. Mechanical/Vacuum a. Yesterday swapped the power supply at I:IP301A and further investigation is needed b. There was a vacuum burst in the MI301 region last night (around 20:50) – vacuum recovered i. Uncertain if this is related to IP301A or just coincidental c. Wednesday looked at the power supply for I:IP839 i. The supply was swapped out but the pump would not stay on ii. Will need to look at the pump and/or patch cable in the tunnel iii. EE Support is in the loop and will prepare a replacement patch cable iv. Submitting worklist entry but may not occur until summer shutdown 2. Fluids a. Nothing to report External Beamlines 1. Mechanical/Vacuum a. NM2 - waiting on vacuum parts to complete leak repairs 2. Fluids a. Hydrotesting of the HRS supply and return lines for Mu2e was completed yesterday i. Purging the lines with nitrogen today b. Filling MS2 LCW system today c. Monitoring NS2 LCW tank level with warm weather changes Fluids – General 1. CUB a. Waiting for approval from ISD to regenerate column II b. New valve, ejector and turbine acid flow meter installed on column II c. REM system running on column III currently