 Monday, January 28, 2019, 10:41, David Wang, Conditioning Station, Repair, TM2, , TM2 water lines helium pressure test at TCS
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leak detector base LR: 0.0Xe-9atm.cc/sec. helium 70 psi. test time : 3 minutes for each circuit.The results in atm.cc/sec are Ta+(A):1.8 XE-8. TA-(B):0.0xE-9. Tu-(C):1.2XE-7. TU+(D):1.6XE-7. Coil 2 (PQ):0.0XE-9. Coil 1 (RU):0.0XE-9. MSP:2.2XE-7. EE:1.0XE-7. HS:N/A. Window:5.8XE-9 |
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Thursday, January 24, 2019, 10:34, David Wang, ITW, Maintenance, , , Changed 24VDC plugs of TP solenoid valves in ITW
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3 damaged 24VDC plugs of TP solenoid valves are replaced. Inspected other plugs. All of them are in good condition now. |
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Tuesday, January 22, 2019, 09:56, David Wang, ITW, Maintenance, TM2, , ITW water system maintenance.
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ITW water system maintenance is done. All working paddle wheels and coils are replaced. ITW water system polyurethane tubes are replaced as well. Two 3/8" leak small valves on return lines are replaced. 85 liters of tritium water are transferred from storage tank to B2 level holding tank. LALC water are refilled into S-tank. Restarted pump and checked system. Everything works fine now. No water leak has been found so far. |
Monday, January 21, 2019, 16:27, Isaac Earle, North Hot-Cell, Development, , , NHC in-cell camera wired to right side monitor 
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The NHC right side monitor has been wired to display the signal from the in-cell camera. This was tested using a snake camera on both of the CPC-4 connectors.
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Friday, January 18, 2019, 10:26, Isaac Earle, North Hot-Cell, Development, , , NHC sealing improvements and repeat of RH test for LED lights
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The following NHC development work was completed under WP I2019-01-09-4:
- Location of RH feature on operator level LED lighting updated to match IRH1800 Rev B design
- Remote Handling test of the LED fixtures was repeated using a 9' pole with hook attachment through the manipulator slave hatch from the Target Hall: both LED fixtures were removed and reinstalled successfully with relative ease
- Tool port seal replaced to address an audible air leak: the 1/4" foam seal was removed and replaced with adhesive backed 5/8" wide hollow foam rubber seal (McMaster Carr PN: 93085K81). Prior to the change DPG4 was at 0.63"wc, after the change wit was 0.73"wc with all system variables constant.
- NHC manipulator access block seal was replaced, likewise to address an audible air leak: the 1/4" foam seal was removed and replaced with adhesive backed 1/2" thick BunA-N rubber strip (McMaster Carr PN: 9023K85). DPG4 was at 0.94"wc prior to the change, and 1.07"wc after with all system variables constant
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Monday, January 14, 2019, 07:07, David Wang, Conditioning Station, Maintenance, TM2, , Restarted TCS vacuum system .
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No issue. |
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Friday, January 11, 2019, 13:59, Isaac Earle, Safe Module Parking, Development, , , SMP motor selection decision
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SMP drivetrain design work is currently underway. Alejandro has selected a suitable 1200:1 reducer which will give a vessel rotation speed of 0.21rpm with a 1725rpm motor (deemed sufficiently close to the SHC rotation speed of 0.17rpm). The reducer however is only rated for 0.33hp, and Allon's analysis recommended we use a motor of at least 0.4hp
From his calculations the expected power required to turn the loaded vessel is 0.2hp (see Document-161943, p3). The higher figure of 0.4hp in his final recommendations comes from the power rating of a 40 tooth sprocket (the driver sprocket) with a No. 50 roller chain operating at 10rpm (the lowest speed shown on the table) - meaning this driver sprocket arrangement can handle up to 0.4hp. We discussed this on the phone on January 4th and agreed that a 1/3hp motor could be used which will match the reducer Alejandro selected, and will supply sufficient power given that calculations indicate only 0.2hp is required.
Once the vessel is installed in the shield box a test will be performed to determine the actual torque (and power) required to turn the vessel. If the value differs significantly from the calculated value the design will be revisited. |
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Friday, January 11, 2019, 13:17, David Wang, Conditioning Station, Standard Operation, TM2, , TCS and TM2 vacuum system are switched off for this Sunday power outage.
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I will restart all pumps Monday morning. |
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Friday, January 11, 2019, 11:26, Travis Cave, Spent Target Vault, Standard Operation, , UC#25, Spent Target Move
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The spent target in the south hot cell has been moved to the spent target vault. It was placed in pail 204 and placed in spot 6B. The pail is made of thicker steel and thus will not need to be repackaged later. The ISAC spent target vault is full there is no more room for any more targets. |
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Thursday, January 10, 2019, 10:45, David Wang, Conditioning Station, Standard Operation, TM2, , TM2 is under vacum at TCS.
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TCS: TP1, TP2 and TP1S are started. |
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Thursday, January 10, 2019, 09:26, Travis Cave, Conditioning Station, Standard Operation, TM2, no target, Module move
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TM#2 has been moved from the south hot cell to the conditioning station. |
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Wednesday, January 09, 2019, 13:29, David Wang, ITW, Repair, , , ITH:MP1
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ITH: MP1 has been replaced due to its poor performance. Its motor and power cable are taken out and reused on new pump. Vacuum group assembled them together, and installed the new pump. The new pump works fine. |
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Wednesday, January 09, 2019, 13:08, Travis Cave, South Hot-Cell, Standard Operation, TM2, UC#25, Electrical Check
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Electrical check of the target module with the UC#25 attached after the beam run. |
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Wednesday, January 09, 2019, 10:47, Travis Cave, South Hot-Cell, Standard Operation, TM2, UC#25, Module move
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TM#4 with UC#25 has been moved from ITW to the south hot cell. |
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Wednesday, January 09, 2019, 06:26, David Wang, Conditioning Station, Standard Operation, , , TCS vacuum pumps have been stopped.
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The tCS will be vented soon for TM2 move later this week. |
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Tuesday, January 08, 2019, 08:49, David Wang, ITW, Standard Operation, TM2, , TP1 TP1 have been disconnected in ITW
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Started argon venting of ITW now. |
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Friday, January 04, 2019, 14:38, Isaac Earle, North Hot-Cell, Development, , , NHC cameras tested
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The NHC module support flange cameras (4 total) as well as the NHCSA camera were tested today and confirmed to be working properly. All cameras were angled and focused properly, and displaying clearly on the monitors in the ISAC RH Control Room. Photos of the control room monitors are attached below.
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Friday, January 04, 2019, 08:48, David Wang, ITW, Standard Operation, TM2, , TM2 has been disconnected in ITW.
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TP1, TP2 are still connected for next week leak check. All water lines in TM2 are purged with 80 psi air, each for 5 minutes.
TP1 and TP2 had been disconnected. TM2 with UCx 25 disconnection checklist, See attachment. |
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Thursday, January 03, 2019, 13:41, David Wang, Crane, Repair, , , Target hall crane PLC issue.
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Target hall crane did not work properly after power outage during Christmas time. The only movement could be operated is crane rotation. Power is supplied crane. The control board on N-S, E-W and up-down movement showed F51 error code which is tripped limit.. All these clues pointed to a PLC control problem. Don dale was asked for help. He used the crane control PLC program on an old computer in RH control room reset the PLC system. Everything works fine after his reset. |
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Thursday, January 03, 2019, 13:30, David Wang, ITW, Repair, , , ITH:MP1
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ITH:MP1 inlet pressure showed 10torr after power outage during holiday. All ITE/W turbo-pumps were tripped because of it. Removed one shielding block above the vacuum station. Visually checked oil level and condition in pump. oil level is high. oil color is dark. no oil leak . Installed a local convectron gauge on pump inlet. After pumping down, It shows pump is good. Tightened all KF 25 and 50 clamps on pump inlet side. Reconnected pump to system. Everything works fine so far. All ITW / E turbo pumps are started now. |
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