David Schleeper work items
From Cryowiki
JLab
2/16 Update
- CHL:
1 Replacement/upgrade of LN2 fill station gauging: -Materials: On-site -Pressure System: Standard Maintenance -Drawings: N/A -Fabrication: N/A -Operations: Assigned Tank 2 complete. Dewars have been aligned to support the gauge replacement. -Testing: Snoop upon installation.
2 CHL Guard Vacuum -Materials: installed -Pressure System: Signed -Drawings: Complete -Fabrication: Removal/repair of the hand rail. -Operations: Will need to remove feet, grout, shim and anchor the feet. Will require welding. -Testing: To be initial service leak checked upon completion of electrical work. Pump temperatures will also need to be monitored.
3 LN2 Dewar #1 instrumentation tubing replacement -Materials: On-site -Pressure System: Signed -Drawings: Complete -Fabrication: All paperwork and materials are with Scott. He is scheduling. -Operations: N/A -Testing: To be initial service leak checked upon completion.
4 LN2 PBC leaks -Materials: TBD -Pressure System: TBD -Drawings: TBD -Fabrication: TBD -Operations: All leaks have been identified and tabulated. Ops is investigating the repair of threaded connections. -Testing: Snoop
5 CHL Recovery Purifier Sieve replacement -Materials: on-site -Pressure System: N/A -Drawings: N/A -Fabrication: N/A -Operations: P5 sieve replaced and ready for use. -Testing: N/A
6 ESR ORS Carbon Replacement -Materials: Lifting adapter approved by Sprouse. Estimating ~$350 for materials -Pressure System: N/A -Drawings: Need to be developed. Sent to Corey for him to prioritize. -Fabrication: awaiting drawings -Operations: Needs to be scheduled/planned. Probably next summer -Testing: Spool pieces will need to be tested.
7 ESR 15K U-tube -Satisfactorily tested and ready for install.
8 ESR Oil collection -Materials: Ordered -Pressure System: N/A -Drawings: Sketch delivered to shop. -Fabrication: TBD -Operations: Will require familiarity with system prior to installation. -Testing: not likely. category D piping at most.
9 CHL IA modification -Materials: ordered -Pressure System: Cat D -Drawings: in development -Fabrication: TBD -Operations: N/A -Testing: Initial service leak test
10 CHL purifier sieve heater -The improved methods for regenerating the sieve beds to be performing sufficiently well that a new design is not necessary. The design criteria has been saved in the purifier pressure system folder.
ESR Status
- Hall A:
- Magnets cold, on cold return, controlling properly - Warm flows return to ESR - Target cold.
- Hall B:K
- Torus at - Warm flows return to CHL - Solenoid scheduled for May delivery
- Hall C:
- All magnets cold, on cold return - Warm flows return to CHL - Return transfer line replacement did not alleviate magnet pressure issue. - Q3 and dipole testing underway. - Target was successfully cooled and maintained on 2/28. - KPP scheduled for March.