 Wednesday, May 15, 2013, 10:20, Bevan Moss, Conditioning Station, Repair, , , Roof top chiller failed
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I have been getting a fault on the roof top chiller for the 2 tandem 7.5 ton chillers. I have checked and we have water flow and the temperatures are
nowhere near freezing. I believe they are over heating as the fans on that side are not coming on. The blades are free to turn by hand but the VFD controller
keeps saying off. I have tried turning it on and off and that also did nothing. I have contacted ESC for further advice. |
Thursday, April 27, 2017, 16:58, Isaac Earle, North Hot-Cell, Development, , , Right side NHC manipulator installed 
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Installation of the NHC right side manipulator was completed yesterday. The three piece manipulator was assembled in the module assembly
area on the manipulator cart which was then craned through the hatch to the NHC service area (the slave end had to be removed for it to fit through the
hatch). The installation went relatively smoothly except for the second (cold side) piece of lead shielding around the thru tube which would not |
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Tuesday, September 24, 2013, 14:46, Bevan Moss, South Hot-Cell, Repair, , , Right manipulator repair
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The right manipulator A-9885 Handle Cable Assembly has been repaired by Maico and myself. We repaired the manipulator following
some verbal instructions from Chad on the modified repair strategy. This allows the repair to be completed without going into the hot cell. The instructions |
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Wednesday, October 02, 2013, 13:44, Bevan Moss, South Hot-Cell, Standard Operation, TM4, , Right Coil is leaking
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Today Maico and Travis completed and electrical test to determine the right and left coil on TM4. The left coil is the negative side. From there
Maico pumped on both lines for a leak test. The leak cart pumped down to its lower limits on the left line and there was no response when sprayed with
helium. The right line would not pump below 2.5 x 10^-2 Torr and had a base leak rate of 3.3 x 10^-7 atm*cc/sec (this indicates a massive leak). Without |
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Thursday, December 21, 2023, 09:37, Ferran Boix Pamies, ITE, Development, , , Rewiring of TC multiping wires
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Thursday, December 21, 2023, 09:36. ITE multipin wires 12-13-14-15 were rewired from the RF driver box to a TC datalogger inside the HV cage. A
webcam was also installed to monitor the TC values during operation. This is only a temporary setup to be upgraded during shutdown. |
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Wednesday, August 14, 2019, 11:43, Travis Cave, South Hot-Cell, Standard Operation, TM2, Ta#58 and no target., Results of electrical checks post beam at the south hot cell.
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Here are the results of the electrical done at the south hot cell post beam of with the Ta#58 target attached and with just the module no target
attached. |
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Monday, January 22, 2018, 07:47, David Wang, Conditioning Station, Standard Operation, TM3, , Restarted TM3 vacuum sysytem after site power bump
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| All TCS and TM3 vacuum pumps are started successfully. |
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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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Wednesday, May 20, 2020, 13:19, David Wang, ITE, Maintenance, , , Restart of ITE turbo pumps.
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PLC6 drop out in weekend caused the ITH MP1 and MP1s stopped. ITE turbo pumps were running still after that. Without back up pump, TPs started to trip
off later . I found TP1,TP3, and TP4 were tripped off this morning. And , The rest pumps ran with high current draw. Jon Aoki restarted
back up pumps and ITE turbo pumps. The ITE vacuum system works fine now. |
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Thursday, March 06, 2014, 12:59, David Wang, Conditioning Station, Maintenance, TM1, , Restart TM1 and CS TPs
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| Restarted TM1 and CS turbo pumps after the power off. Everything is fine . |
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Wednesday, January 02, 2019, 10:26, Anders Mjos, Conditioning Station, Standard Operation, , , Restarrted TP1S
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| Found pumps off after the holidays. Restarted roughing pump and TP1S |
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Tuesday, February 17, 2015, 13:07, Anders Mjos, ITW, Development, , , Resistance measured of TGHT and TBHT lines to ITW
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See e-log entry for ITE for details. The copper bars have not been removed. They
can be used for testing the new power supplies.
Local measurement was done by Ray with a voltmeter. The voltmeter was consistent with EPICS readback and local readback on the power supplies. |
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Tuesday, April 28, 2015, 11:09, Anders Mjos, ITW, Maintenance, , , Resistance measured of TGHT and TBHT lines to ITW
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The new TBHT and TGHT power supplies were brough up to high current; 350 A and 420 A respectively. The TGHT power supply was limited by PLC to 420 A.
The resistance calculated for both the TBHT and TGHT copper lines from the electrical services room to the ITW pit was 1.35 mOhm. See attached spreadsheet
for details. |
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Tuesday, February 17, 2015, 13:06, Anders Mjos, ITE, Development, , , Resistance measured of TGHT and TBHT lines to ITE
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The copper bars was installed by David and Anders. After the measurements were completed, the copper bars were removed.
See photo and attached spread sheet. |
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Thursday, June 13, 2024, 11:44, David Wang, Conditioning Station, Repair, TM2, , Replaced several o ring seals on TM2 service cap.
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couple of E-8 to low E-7 atm.cc/sec leak were found on TM2 service cap top air to vacuum o rings. Replaced these leak o ring seals
including o ring on IG1 and steerer service panel,o rings on MSP, EE, D blue nylon and copper feed through, and o ring on a round blank off beside MSP
terminal on second row. |
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Friday, July 10, 2015, 14:41, Anders Mjos, Conditioning Station, Maintenance, TM1, , Replaced roughing pump
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| The roughing pump was replaced with a more leak tight pump due to the discovery of Rn-220 migration while roughing on TM1 in TCS |
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Wednesday, February 14, 2018, 10:06, Anders Mjos, ITW, Maintenance, TM2, , Replaced parker couplings on Window cooling line
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| By Anders & David. Couplings will be taken apart for inspection. |
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Wednesday, March 02, 2022, 10:51, David Wang, ITE/ITW, Standard Operation, , , Replaced old turbopump and 2A3M20 wire scanner are transferred to cyclotron tunnel.
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Replaced 9 old turbo pumps from ITE/ ITW and one 2A3M20 wire scanner from ITE are transferred to cyclotron tunnel for storage. It is TH RAD waste
cleanup task in winter shut down. |
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Thursday, August 23, 2012, 07:34, David Wang, ITW, Repair, , , Replaced broken air lines on ITW HARP5B cylinder.
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Prob guys replaced broken air lines on ITW HARP 5B Cylinder.Several shielding blocks had been moved out to make the cylinder accessible. After the replacement,the
HARP5B works fine.All shield blocks had been moved back to original position. The job is done. |
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Friday, June 14, 2024, 16:04, Carla Babcock, ITW, Repair, TM4, UC#45, Replaced and reinstalled electronics in ITW cage
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ITW has been behaving badly at higher voltages recently, even without protons on. I conditioned it up to 50kV with heaters off in the TCS and it was
fine. But when I tried to do the same with heaters on in the station, it was quite sparky and it kept tripping the TGHT/TBHT. I went to 49kV where it was
unstable, then lowered to 48kV where it looked fine for 30mins. But even operating at 40kV, it tripped the heaters several times. The TBHT voltage came |
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