 Wednesday, January 29, 2025, 11:39, chad fisher, North Hot-Cell, Repair, , , Model N Remote Arm #9342 Tong Cable 
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Model N remote arm serial #9342 tong cable has been un-jammed from between pulley 3D (see picture) and casting (this is an ongoing issue with #9342 and
9352) and cable restrung and exercised to check motion. Tong system is now functional but exhibits excessive slack. Next step will be to check tension
of the elevation/twist cables and adjust the pulley block if required (this pulley block houses both the elevation twist cable pulleys and the tong cable |
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Thursday, January 30, 2025, 07:07, David Wang, Crane, Standard Operation, , , target hall crane annual inspection.
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Tom Kauss finished TH crane annual inspection yesterday. The crane woks fine. Tom has this inspection record in his file. The crane inspection tag
has been issued for 2025. |
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Thursday, January 30, 2025, 07:13, David Wang, Crane, Standard Operation, , , inspection of target module lifting frames ITA0494-1997-01 and ITA1994-1997-02
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Tom Gauss inspected two target module lifting frames ITA0494-1997-01 and ITA0494-1997-02 yesterday. He certified the use of these two frames
for 2025. Inspection tags have been issued and attached to frames. He has inspection record on them.
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Thursday, January 30, 2025, 07:17, David Wang, Crane, Standard Operation, , , inspection of target hall crane below hook attachment pins and plates ITA6550-01.
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Tom Kauss inspected target hall crane below hook attachment pins and plates ITA6550-01 yesterday. He certified the use of these pins and plates
for year 2025. The inspection of these pins and plates was in Target hall crane annual check list. It was issued as a calibration index by Isaac
Earle in 2022-Feb-08. After inspection, The inspection tag was issued. Tom has an inspection record on this job. |
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Monday, February 03, 2025, 13:04, David Wang, Safe Module Parking, Maintenance, , , ITW/ITW 24VDC electrical connectors for TP BVs MRO.
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| ITW/ITW 24VDC electrical connectors for TP BVs MRO has been done. |
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Monday, February 03, 2025, 13:10, David Wang, Cooling, Standard Operation, , , HALCW pump ITC:MP1 has been started.
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HALCW pump ITC:MP1 has been started. water are supplied to both ITE and ITW system. all water signals for individual circuits work fine. no major leak
on system. Some small water seeping from small ball valve stems are found in ITW. they will be fixed soon. |
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Tuesday, February 04, 2025, 11:50, Alexander Shkuratoff, ITW, Standard Operation, , , ITW HV bias test without module (Work permit I2025-02-03-2)
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Tuesday, February 04, 2025, 10:15
Started voltage ramp up. Using 250 V increments.
Tuesday, February 04, 2025, 12:07
Current has got a bit noisy, starting at around 56.5 kV.
Currently at 57 kV. Voltage is stable though.
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Wednesday, February 05, 2025, 13:46, Alexander Shkuratoff, ITE, Standard Operation, , , ITE HV bias test without module (Work permit I2025-02-03-2)
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Wednesday, February 05, 2025, 12:20
Ed has the voltage already up to 1000 V. Starting further ramp up in 250 V increments.
Wednesday, February 05, 2025,
12:45 |
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Tuesday, February 11, 2025, 10:36, chad fisher, South Hot-Cell, Repair, TM2, , Conductor Block Insulator Replacement
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Ceramic conductor blocks ITD0053 and ITD0054 were replaced on TM2. Initially, only ITD0053 was to be replaced but after removing it it was noticed that
ITD0054 (the larger conductor block behind it) was also broken, fractured through the helicoil that retained ITD0053 (see attached picture).
Both the old 53 and 54 fell into multiple pieces upon removal (see attached photo). |
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Friday, February 14, 2025, 10:43, David Wang, ITW/ITE, Standard Operation, , , target pit CAD filter replacement in TH.
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Plant Group Gabril.T organized a target pit CAD filter replacement and testing yesterday. My group helped on this job. small 3T hoist was used
for the job.Still the filter needs to be pushed manually on crane to south into position because of crane access limit on south. The replacement
job went well. Later, Gabril reported his test result is good as well. |
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Friday, February 14, 2025, 11:35, David Wang, Conditioning Station, Standard Operation, TM2, , TM2 TP1/TP2 and TCS TP1S have been started at TCS.
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TM2 TP1/TP2 and TCS:TP1S have been started at TCS. The starting time and operation of turbo pumps are ok. TM2 had been stored in silo since last Oct.
TP1/TP2 work fine over long weekend and TCS vacuum is good. I switched off TCS vacuum system. |
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Thursday, February 20, 2025, 11:29, chad fisher, South Hot-Cell, Standard Operation, , , Field Check
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After removing the previously found extraction electrode and other suspect components the field at the manipulator tongs (in front of the window) in
still 3mSv\h.
I have been through every bin etc in the hc and even emptied the dust seperator canister of the vacuum. I will use the camera to look under the |
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Friday, February 21, 2025, 09:18, David Wang, Cooling, Standard Operation, , , HALCW pump ITC:MP1 and MP2 phase current draw measurement.
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HALCW pump ITC:MP1 and MP2 phase current draw measurement result: water supplied to both station. MP1: Black 17.0A, blue 16.9A, red 16.7A.
MP2: black 17.3A, blue17.8A, red 17.3A. The results are good. No concern on both motors. |
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Monday, February 24, 2025, 11:15, David Wang, Cooling, Maintenance, , , ITW/ITE water system manual valves water small leak inspection and repairing.
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ITW/ITE water system manual valves water small leak inspection and repairing job is done. Small water drippings have been found on ITE: manual
supply and return(valve stems). ITW: 2A window supply(valve stem), collimator supply(valve stem),EE return(valve stem), HS supply and return(valve
stems), tube heater supply and return(valve stems). all small leaks are repaired. |
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Wednesday, February 26, 2025, 09:59, David Wang, South Hot-Cell, Standard Operation, , , SHC Field measurement from TH
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After waste transfer, I did a SHC field measurement from TH through top flange opening. The general field around manipulator maintenance working area
is 550 to 650 usv/hr(0.4 to 0.5 meters above table). some area on work table where target fragile material stayed before have 1.0 to 1.3 m/sv (closing
to contact measurement). The spreading of target material dusts deposited on table, and affected the whole cell field in my view. |
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Monday, March 03, 2025, 10:53, David Wang, ITE/ITW, Maintenance, , , ITH:MP1 has been replaced.
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No issues seen on new pump;
ITH:CG2 ~0.008T with ITH:CG1 ~0.001T.I am happy with performance. ITH:MP1 turned back off; ITH:PV1 closed and ITH:SV4 closed after the job.
- Chloe Beaumier-Martin
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Monday, March 03, 2025, 15:33, David Wang, Cooling, Maintenance, , , HALCW resin can loop two filters have been replaced.
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| HALCW resin can loop two filters have been replaced. no water leak on after job check. |
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Friday, March 07, 2025, 09:07, David Wang, ITW, Standard Operation, , , ITW water signals interlock annual check is done.
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| Chole and I finished ITW water signals interlock. No issue. |
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Friday, March 07, 2025, 09:16, David Wang, Cooling, Maintenance, , , Service of 28 female Parker 1/4 quick connectors in ITW and ITE
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Service of Parker 1/4 quick connectors in ITW and ITE have been done. all 28 female connectors were serviced. o- rings and valve stem in
quick connectors were replaced. the serviced connectors have been installed back to ITW and ITE. Visually inspected all connectors with flowing through
them. No leak, and they function well. |
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Tuesday, March 11, 2025, 08:44, David Wang, ITW, Standard Operation, , , ITW:TP3,TP4, TP1S TP4S have been started since March 06th.
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To prevent TP bearings seize during shut down, ITW:TP3,TP4, TP1S TP4S have been started since March 06th. They work fine. The plan is to switch
them off this Thursday, and restart them in May before ITW in use. |
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