 Friday, April 11, 2025, 13:46, chad fisher, North Hot-Cell, Repair, , , Remote end 9**4 repair
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Tong cable on remote arm 9**4 has be relocated onto its pulleys and tong opening adjusted at the tong cable drum by changing the position of the tong
cable screws by two positions (tightened/closed) such that the air tool will fit in the tong and some of the slack in the tong system has been taking up.
An attempt was made to also adjust the elevation twist pulley block which would also aid in taking up slack in the tong system however, the elevation |
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Friday, April 11, 2025, 13:34, chad fisher, North Hot-Cell, Repair, , , remote end 9342 installed
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On March 27 remote end 9342 was installed on the west position (right hand as viewed by operator) and arm 9**4 removed and moved to anteroom.
Previous to this installation, arm 9342 received tensioning of the elevation twist pulley block and tightening of the tong cable opening via the
tong cable drum. Tong opening was reduced to roughly 2" to achieve tension in the tong cable such that slack upon release of the system was reduced |
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Friday, April 04, 2025, 09:35, David Wang, Crane, Development, , , spent target pail and its lifting jigs load test
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Adam and I did spent target pail and its lifting jigs load test this morning. The load for full pail test is 263 lbs and for empty pail is
69 lbs. pail and all jigs passed the test. |
Tuesday, April 01, 2025, 09:47, Frank Song, North Hot-Cell, Repair, , , Two NHC light bulbs replacement 
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| 2 broken lights of NHC were replaced in Target Hall. see pics attached. |
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Thursday, March 20, 2025, 13:10, David Wang, Conditioning Station, Standard Operation, , , TCS water system filters annual replacement has been done.
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| TCS water system filters annual replacement has been done. Plant group Dan Tower finished the job and updated the inspection tags . |
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Tuesday, March 18, 2025, 13:54, David Wang, ITE, Standard Operation, , , ITE water signals interlock annual check
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| ITE water signals interlock annual check is done today. all interlocks work . No issue. |
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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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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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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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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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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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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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Tuesday, February 25, 2025, 09:42, Travis Cave, Spent Target Vault, Standard Operation, , SHC Active Trash, SHC Active Trash
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Another pail of active trash was move to the spent target vault from the south hot cell. 800uSv/hr, place in spot 7A see attached PDF for vault
status. |
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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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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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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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Thursday, February 20, 2025, 11:10, David Wang, Conditioning Station, Standard Operation, TM2, No target, TM2 has been moved from TCS to west-south silo.
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| TM2 has been moved from TCS to west-south silo. Travis and I did the job. The move is successful. |
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Thursday, February 20, 2025, 10:12, David Wang, Safe Module Parking, Standard Operation, TM4, No target, TM4 electrical check at SMP(vented) without target
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TM4 electrical check at SMP(vented) without target: PQ is dead short to RU. PQRU to 60kv bias,750Kohm at250V. other things are good. Notes: In attachment
files all hand writing and circled TM2 should be TM4. the results are measured on TM4 not TM2. |
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Wednesday, February 19, 2025, 10:07, Travis Cave, Spent Target Vault, Standard Operation, , SHC Active Trash, SHC Active Trash
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Active trash was placed into an unmarked pail and place in spot 7C of the vault the pail measured 321uSv/hr when removed from the SHC. See attached
PDF for details. |
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Tuesday, February 18, 2025, 10:41, David Wang, Conditioning Station, Standard Operation, TM3, No target, TM2 at TCS annual electrical check and water lines helium pressure check .
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TM2 has been moved to TCS and under good vacuum. TP1/2 work fine. Electrical check: A to PQ still dead
short. B to C @250V 3.8M which is ok still . We knew these two things before. Other things are good. Vacuum: air to vacuum seals on TM2 service cap are
good. Helium pressure test on all water lines are good. HS line no target so can't be tested. But We did helium pressure test on each target change so |
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