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New entries since:Wed Dec 31 16:00:00 1969
ID Date Authordown Category Type Module Target/Number Subject Text Attachments
  1489   Wednesday, April 12, 2017, 07:26 David WangConditioning StationStandard OperationTM2 TM2 and TCS vacuum system has been connected.Roughing down overnight. Turbo pumps are
started this morning. Everything looks good
so far.
  
  1491   Wednesday, April 12, 2017, 12:51 David WangSouth Hot-CellRepairTM3 TM3 Ram readings @ SHC We have a ram installed on SHC pole
which is 0.5 meter to   module shielding
block surface. the readings we got today
  
  1495   Thursday, April 13, 2017, 11:33 David WangConditioning StationStandard OperationTM2 Helium pressure test on TM2 water llines at TCS.LD  BLR :0.0 X E-9 atm.cc/sec. BP:0.0XE-4
torr. helium 70 psi. 3 minutes on each circuit
  
  1497   Thursday, April 13, 2017, 14:16 David WangCraneRepair  TH crane: east side main hoist brake assembly is replaced. Gordon Crane technician Tom Kauss finished
the replacement of the east side main hoist
brake assembly. A new set up is installed.
  
  1498   Wednesday, April 19, 2017, 08:29 David WangConditioning StationStandard Operation  TH schedule 132 update in first beam week Update schedule to show job process in
TH. See attachment 1,2.
 Target_Hall_shedule_132_Apr_to_Sep.pdfTarget_Hall_shedule_132_Apr_to_Sep.mpp 
  1499   Friday, April 21, 2017, 08:19 David WangConditioning StationRepair  Low frequency on TCS TGHT flow sensor.Anders and I found a low frequency issue(13hz
only) on TCS TGHT flow sensor when doing
TM4 conditioning. By trouble shooting, We
 TCS_water_lines_001.JPGTCS_water_lines_002.JPGTCS_water_lines_003.JPG 
  1500   Monday, April 24, 2017, 09:52 David WangConditioning StationStandard OperationTM2 Switch off TCS water system and vacuumsThe TCS bias was turn off before that.
The TM2 and TCS are still under vacuum now.
  
  1501   Monday, April 24, 2017, 16:06 David WangSouth Hot-CellRepairTM2 Crane main hoist strane noise when lifting up TM2  When lifting up TM2 (20000lbs) this
afternoon, TH crane has a strange noise on
main hoist. The module was lift up less than
  
  1502   Monday, April 24, 2017, 16:11 David WangConditioning StationStandard OperationTM2 TCS TP1s is restarted.TCS IG1S  is switched on as well.
The reason to start the pump is to prepare
a possible extended TM2 conditioning at TCS
  
  1505   Wednesday, April 26, 2017, 10:24 David WangITWStandard OperationTM2 TM2 ITWTM2 was moved and connected in ITW yesterday
afternoon. After roughing down, ITW turbo
pumps are started. ITW TP4 can not be started
  
  1516   Monday, May 01, 2017, 12:32 David WangCraneRepair  TH crane burning smellTH crane burning smell showed again this
morning. It  appeared after 1-1.5 hours of
continuously using during the F308 flasks
  
  1517   Monday, May 01, 2017, 13:11 David WangSouth Hot-CellRepairTM3 Electrical Check on TM3 after fibergalss is moved in SHC. RU( coil 1), F (anode), and 60kv bias(HS,
Gasline, and MSP)  are shorted together.
Other lines are good.  They are measured
  
  1521   Thursday, May 04, 2017, 14:06 David WangConditioning StationRepairTM3 A vacuum to air leak on TM3 service cap round side panel was found and fixed.. During TM3 roughing down yesterday afternoon,The
vacuum gauges CG1 and CG1S stopped at 1.20
torr and refused to drop down. Leak detector
  
  1523   Friday, May 05, 2017, 11:06 David WangCraneStandard OperationTM3 TH crane is used for 5 shielding blocks transferring.   TH crane is used for transferring
five shielding  blocks(30000lbs) today. All
brakes work fine. Mostly, I do not need 
  
  1524   Friday, May 05, 2017, 11:53 David WangConditioning StationRepairTM3 sparking on TM3 serice cap top.Sparking was found this morning inside
HV cover on TCS in TH while TM3 was HV conditioning
at TCS. The TCS bias was set to 50KV when
  
  1527   Monday, May 08, 2017, 09:49 David WangConditioning StationStandard Operation  TH schedule 132 update weeklyUpdate TH schedule weekly to show the job
process.
 Target_Hall_shedule_132_Apr_to_Sep.mppTarget_Hall_shedule_132_Apr_to_Sep.pdf 
  1529   Tuesday, May 09, 2017, 07:00 David WangConditioning StationRepairTM3 Follow up Aurelia's entry, TM3 and TCS current limits investigation. Aurelia and I investigated this current
limit issue May 8th. First, By separating
TM3 from TCS. we found the problem is on
  
  1530   Tuesday, May 09, 2017, 12:45 David WangConditioning StationRepairTM3 TM3 service tray side panel is cleaned and installed back to TM3TM3 service tray side panel is cleaned
and installed back to TM3 this morning. I
visually inspected service tray insulators.
 TM3_service_tary_side_panel_005.JPGTM3_service_tary_side_panel_001.JPGTM3_service_tary_side_panel_004.JPG 
  1534   Friday, May 12, 2017, 07:42 David WangCraneRepair  TH crane burning smell, smoke, and big noise on east side main hoist brake assembly.This morning, when I prepare for today's
crane check,  The crane made a very strong
noise without any load during the full  speed
  
  1539   Wednesday, May 17, 2017, 08:31 David WangSouth Hot-CellStandard OperationTM4 Leak check on TM4 HS line at SHCChad and I finished leak check on HS line
with UCx target installed on it.  Base
Leak rate:0.0X 10^-9 atm.cc/sec, Base pressure
  
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