 Tuesday, January 24, 2023, 07:26, David Wang, Conditioning Station, Standard Operation, , , TH floor moping and garbage collelctions.
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Plant group and us finished TH floor mopping and garbage collections last Wednesday. Th moping head had 800 count after using. all garbage were
bagged , checked, tagged, and sent to radwaste area. |
Tuesday, January 24, 2023, 08:46, David Wang, ITE, Standard Operation, TM4, UCx#41, TM4 has been disconnected in ITE. 
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| TM 4 has been disconnected in ITE. See attachment for disconnection checklist. |
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Tuesday, January 24, 2023, 14:22, David Wang, South Hot-Cell, Standard Operation, TM4, UCx#41, TM4 electrical check with and without target at SHC
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| TM4 electrical check with UCX41target and without target at SHC. The results are good. See attachment. |
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Wednesday, January 25, 2023, 06:52, David Wang, ITE, Standard Operation, TM4, UCx#41, ITE primary and secondary vacuum vessel air to vacuum seals leak check.
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ITE primary and secondary vacuum vessel air to vacuum seals leak check was done this week. One leak has been found on IG1S feed through to entrance module
surface seal. It explains what we saw on ITE IG1S readings change(from low E-7 torr to 1Xe-6 torr) on December 22, 2022. This leak seal will be replaced
soon. |
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Friday, January 27, 2023, 07:11, David Wang, Crane, Standard Operation, , , Target hall Crane annual inspection has beend done.
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Tom Kauss inspected target hall crane yesterday. The crane works fine. Tom has this inspection record in his file. The inspection tag has been issued.
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Friday, January 27, 2023, 07:15, David Wang, Crane, Standard Operation, , , Target hall Crane annual inspection has beend done.
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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 2023. |
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Friday, January 27, 2023, 07:18, David Wang, Crane, Standard Operation, , , Inspection of target module lifing frame ITA0494-1997-01 and ITA0494-1997-02
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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
2023. Inspection tags have been issued and attached to frames. He has inspection record on them. |
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Friday, January 27, 2023, 07:25, David Wang, Crane, Standard Operation, , , Inspection of TH 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. 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 and attached to pin. Tom has an inspection record on this job |
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Monday, February 13, 2023, 09:57, David Wang, ITW, Maintenance, , , ITW/ITE primary vacuum back up lines and BVs leak check in target pit.
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In past two weeks, ITW/ ITE primary vacuum back up lines and BVs in ITW/ITE pit have been leak checked. ITW BV1 and BV2 on back up line side were
leak. They are replaced with old leak free BVs. ITE TP2 NW25 SST flexible line right after pump were leak . It is replaced with new NW25 SST
flexible line. Two leak were found on ITW side KF 50 O-rings connected to NW 50 SST flexible coupling. They were replaced with new KF50 o-rings. After |
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Tuesday, February 14, 2023, 11:36, David Wang, Assembly/Bench Test, Repair, , , Turbo pump BVs o-ring replacement.
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Five of used internal leaked TP BVs are serviced and repaired. Internal plunge o-ring and case o-ring are replaced on all five BVs.
Leak checked valves after . They are ok to be used as spare parts. The are active parts stored in TH now. |
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Wednesday, March 01, 2023, 09:27, David Wang, Cooling, Maintenance, , , Two filters on HALCW resin circuit have been replaced.
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Two filters on HALCW resin circuit have been replaced. O-ring 235# were changed on both filter cartridge houses. 25micron 10"x 2.5"
3M cartridge new filters are used. Old filters are not very dirty. They are bagged and stored in vacuum pit. Residual water from cartridge houses
are collected and stored in high active storage jug with sealed cap. No leak on resin circuit before and after the job. |
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Wednesday, March 01, 2023, 09:34, David Wang, Cooling, Maintenance, , , Visual inspection of HALCW for possible small water leak or drip.
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I visually inspected HALCW system including water station section, both target pits, and de-ionizer system. No small leak and drip was found .
The inspection in both target pits will be repeated after flow sensors are replaced. |
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Wednesday, March 01, 2023, 10:01, David Wang, ITE/ITW, Development, , , vacuum pit ventilation upgrade.
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vacuum pit ventilation upgrade was done last week. The jobs include: installed two industrial cooling fans. One is placed in pit on resin
tan cover. Other one is placed on and opening to pit by shielding blocks. They are installed for better air circulation in pit. Also, 2x two
small 20W cooling fans are installed on ITH MP1 and MP1S to low the pump operation temperature. The result is positive. The ventilation status |
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Wednesday, March 08, 2023, 06:32, David Wang, Cooling, Maintenance, , , HALCW flow sensors replacement.
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HALCW flow sensors replacement job is done. All ITE/ITW(except ITE HS) return line water flow sensors including paddle wheels and coils are replaced.
After job, water interlock signal have been checked in electrical room . Everything works fine. Visually inspections for possible water leak on HCLCW
system have been done as well. one valve on ITE dump return line has a very small water seeping through valve stem. I will watch on it. Other than |
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Wednesday, March 08, 2023, 09:19, David Wang, Cooling, Standard Operation, , , HALCW ITC:MP1/MP2 motor phase current measurement.
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HALCW ITC:MP1/MP2 motor phase current measurement is done by Joel from electrician group. MP1:17.1A/17.2A/16.7A. MP2: 17.9A/17.9A/17.3A.
19.5A is manufacturer notified on full load phase current.on operating instruction manual. |
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Wednesday, March 08, 2023, 13:57, David Wang, Cooling, Standard Operation, , , HALCW ITC:MP1/MP2 pump and motor temerature measurements
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HALCW ITC:MP1/MP2 pump and motor temperature measurements result:
MP1: pump discharging port: 78F, motor rear bearing house:72F , Motor housing 140F(60C). 6F difference between them is less than
15F manufacturer clarified up limit in instruction manual. |
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Monday, April 24, 2023, 10:18, David Wang, Cooling, Maintenance, , , HALCW flowmeter transmotters inspetion and calibration.
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ITW, ITE, ITW +ITE total , and low active cooling water return flow meter transmitters are inspected and calibrated. Result:
ITW , PX-750-06Di , Calibrated to 4-20 mA for 0 to 6" H2O DP, linear. Transmitter works fine.
ITE. PX-750-06Di, calibrated to 4- 20mA for 0 to 6" H2O DP, linear. Transmitter works fine. |
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Friday, April 28, 2023, 21:39, David Wang, Conditioning Station, Standard Operation, , , TCS cooling water system was started and tested this Wednesday
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TCS cooling water system was started and tested this Wednesday. Chiller compressor 2 and 3 was in operation cycle twice without issue. TCS:TK2 was refilled
to 28 inches. Water system works fine. system was switched off after test. |
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Tuesday, May 02, 2023, 17:18, David Wang, ITE, Standard Operation, , , ITE 4 turbopumps are started for preoperation check.
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ITE TP3,4, 1S,and 4S were started successfully this afternoon. All pump current draws were below 1.5A . IG1S was switched on. I have no local controller
so TP1 and TP2 on TM4 at MSP can not be checked. IG1S was hard to switch on at first. It timed out and showed error 09 code. I removed the
connector back cap, and it could be switched on after. I will look on this issue. |
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Wednesday, May 03, 2023, 13:22, David Wang, ITE, Standard Operation, , , Argon vented ITE station.
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| Argon vented ITE station. ITEVV1S and ITGT SV3 were closed after venting. |
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