Logbooks Lab Maintenance Evaporator_1 Evaporator_2 Laser cutter Target Production Test-Stand RH-ISAC RH-Cyclotron RH-Meson Hall RH-Beamlines RH-ARIEL
  RH-ISAC, Page 109 of 140  Not logged in ELOG logo
  ID Date Author Category Type Module Target/Number Subjectdown
  2584   Tuesday, May 07, 2024, 12:39 Eric LaheSpent Target VaultRepair  ISAC Storage Vault Re-alignment

 

ISAC Storage Vault Door Re-alignment (April-May 2024) 

Issue

  • Rollers gouging and marking on roller supports, testing shows door shifts at least 185 thou on structural beam when fully open vs. fully closed
  • door misaligned: 1/4" laterally, slight rotation (~1/16" difference across closed door gap).

 

Repair

  • Moved left structural beam (facing front of door) inward 1/4" at post.
  • Loosened drive system to shift door over via crane to average laterally (1/8" shift) towards center,
  • Attempted to fix door rotation with crane, door would not settle down perfectly flush, but got slight improvement 
  • Adjusted limit switches for fully open and closed (due to the adjustments made previously, needed to realign limit switches) - adjusted flag for final close back by ~1/4"; adjusted limit switch at back of vault forward ~1/4" 

 

Verification 

  • Unloaded vault door actuation tested multiple times with no issues, door returned to same position every cycle, no interferences during travel
  • Vault Door actuation tested with trays 4 and 6 engaged, no issues
  • All pails accessible when open
  • Tested open and closed limit switches: the open limit switches are working properly; the closing soft and hard limit switches are slightly close together, causing the door to just "bump" the vault when closing, The scale of this is OK for current operation, will be adjusted when the ISAC Target Hall Controls Overhaul is done
  • Tested and reset Emergency override mechanism - works properly

 

Outstanding Tasks

  • Will paint marks on structural supports to track if problem reoccurs - update ELog when complete 

 

System State: Operational

See attached file for details

 

 

Attachment 1: Testing_and_updates_to_storage_vault_2024-05-01.pdf
Testing_and_updates_to_storage_vault_2024-05-01.pdf Testing_and_updates_to_storage_vault_2024-05-01.pdf Testing_and_updates_to_storage_vault_2024-05-01.pdf Testing_and_updates_to_storage_vault_2024-05-01.pdf Testing_and_updates_to_storage_vault_2024-05-01.pdf Testing_and_updates_to_storage_vault_2024-05-01.pdf Testing_and_updates_to_storage_vault_2024-05-01.pdf Testing_and_updates_to_storage_vault_2024-05-01.pdf
  2705   Friday, October 11, 2024, 15:59 Aaron TamFacilitiesRepair  ISAC B2 North Hot Cell Phone Fixed

 Resolution comment / Commentaire de résolution:

     Fixed issue by changing patch cord that was connected to the switch from patch panel.

Emile V

  1599   Tuesday, August 15, 2017, 12:10 Isaac EarleNorth Hot-CellDevelopment  ISAC Active Sump low water level measured

The ISAC active sump in the Active Service Room (#002 on B2 level) was pumped out yesterday using the standard procedure (Section 5.5.2 of the ISAC Operators' Manual, V1.0).  The procedure makes use of the auto stop feature of the pump-out system which stops when a low level float switch is triggered.  The water level was measured after pumping stopped, and was found to be approximately 21" above the base of the sump.  A new section of pipe will be added to the 4" drain line in the sump to move the drain opening below the low level water line so that air in the sump is not pulled into the drain network (which could end up in the NHC or TCS space).

  333   Wednesday, May 08, 2013, 13:48 chad fisherSouth Hot-CellRepairTM3 IMG wiring check

Checks of the wiring for the IMG are complete and have passed.

  68   Tuesday, January 10, 2012, 11:51 Grant MinorConditioning StationRepair  IMC at Cond. Station is VENTED - DO NOT PUT MODULE IN

Hi Remote Handling,

The guage on the IMC circuit in the Target Hall is reading atmosphere, and the bellows is currently relaxed (i.e. expanded), whereas it should be reading about -20inHg and the bellows should be contracted (i.e. compressed).

I've attached a photo of what the guage and fittings should look like when pumped down to -30inHg.

Either the IMC circuit has been vented, disturbed, or it has some kind of leak.  When I was in the Target Hall this morning, I saw the gauge bent around the railing at an awkward angle with a pretty severe bend in the copper line, it appeared to have been disturbed by the temporary glove box sitting at that level used by Rob Walker for nuclear ventilation work.

I will co-ordinate pump-down and leak check of the circuit, but the Conditioning Station cannot be used until this is repaired.

Cheers,

Grant

 IMC_Installation_and_Leak_Check_April_28_2011_011.jpg

  2614   Monday, June 17, 2024, 07:36 David WangITERepair  IG1S elbow oring seal and a blabk off cap oring seal beside the elbow were replaced on ITE entrance module top..

IG1S elbow o ring seal and a blank off cap o-ring seal beside the elbow were replaced on ITE entrance module top last Friday. IG1s has a higher than normal reading so i leak checked entrance module top last Thursday and found leaks to 5x E-8 atm.cc/sec leak on one of (or both of )these two o-rings seals. they are too close to identify exactly on which one was leaking so both o rings were replaced.  other air to vacuum seal on entrance module are leak free. 

  897   Thursday, April 23, 2015, 12:56 Anders MjosConditioning StationMaintenanceTM1 IG1 Good Vacuum limit changed

Changed by Dave Morris. 

New value is 1E-5 T (old value was 7.09E-5 T)

Attachment 1: IG1GoodVacuum.png
IG1GoodVacuum.png
  2038   Thursday, January 02, 2020, 09:55 David WangCoolingStandard Operation  I turned on HALC water pump MP2.

HALCW MP2 is switched onnow. There is a small amount of air trapped in system. The pump works fine.  Water level and system resistivity will be monitored for a while.

LALCW P5 and P6 are switched on  for cooling HALCW.  HALCW MP2 is in operation now.

  1240   Friday, May 20, 2016, 08:13 David WangConditioning StationStandard OperationTM2Ta#48I switched off TCS and TM2 water system

Disconnected  TM2 at TCS(vacuum system still on). Purged all TM2 water lines for helium pressure test.

  1219   Friday, April 29, 2016, 10:06 David WangConditioning StationStandard OperationTM2 I switched off TCS and TM2 vacuum pumps.

  I switched off TCS and TM2 vacuum pumps. The TM2 will be disconnected at TCS today and moved to silo on next Monday.

  1205   Monday, April 11, 2016, 13:44 David WangConditioning StationStandard OperationTM4 I stopped TCS and TM4 vacuum pumps.

The TM4 is still under vacuum at TCS. It will be vented tomorrow morning.

I disconnected TM4 vacuum system at TCS.

  1193   Tuesday, April 05, 2016, 12:40 David WangITEStandard OperationTM4 I stopped ITE turbo pumps this morning

The ITE and TM4 have been vented with Argon . TM4 vacuum system is disconnected in ITE.

  602   Tuesday, February 18, 2014, 11:26 David WangConditioning StationRepairTM2 I stopped turbo pumps and disconnected vacuum system on TM 2 and CS

I stopped turbo pumps and disconnected vacuum system on TM2 and CS. The TM2 will be moved to SHC for C seal installation on "D" water block.

  786   Thursday, November 13, 2014, 14:01 David WangITWRepairTM1 I replaced flow wheel and coil on ITW MSP water flow sensor.

I replaced flow wheel and coil on ITW MSP water flow sensor which is located in ITW pit. Before replacement, I checked the signal strength and frequency form e-board on this circuit. The signal was good in 10minutes watching. Still, I replaced them. The flow sensor works fine after replacement. I made a comment  on Isac e-fault system about this issue.

  1223   Monday, May 09, 2016, 08:43 David WangConditioning StationRepairTM3 I reinstalled all the side panel on TM3 service cap.

They were moved for TM3 inspection job last week. All the bolts on the panel are hand tight only now since they will be removed out for camera installation during next stage inspection.

  563   Tuesday, December 03, 2013, 09:58 David WangITWStandard OperationTM4 I moved 5 shielding blocks from ITW to block storage area.

I moved 5 shielding blocks from ITW to block storage area.

  225   Wednesday, January 02, 2013, 12:11 David WangITWStandard OperationTM1 I moved 5 shielding blocks from ITW to block storage area

I moved 5 shielding blocks from ITW  to block storage area for preparing the TM1 disconnection. Air sampled and swiped blocks and ITW and everything is fine.Fiona was with me all the time during the moving.

  150   Thursday, July 26, 2012, 08:33 David WangITEStandard OperationTM4 I moved 5 shielding blocks from ITW to ITE thisTuesday morning .

  All water interlock checks for ITE had been done. The ITE water signals strength and frequency(Espcially on MSP circuit) had been checked from electrical room, and everything is good.

  114   Monday, May 28, 2012, 13:05 David WangITEStandard Operation  I moved 5 shielding blocks from ITW to ITE .

5 shielding blocks have  been transferred from  ITW to ITE. ITE ventilation is opened, and ITW closed. All ITE water  signals have been checked for frequency and strength.They are all good. ITE is ready for taking proton beam.

  419   Thursday, August 15, 2013, 07:37 David WangITERepairTM4 I moved 5 shielding blocks from ITE to block storage area.

I moved5shielding blocks from ITE to block storage area, This is a job for preparing ITE vacuum surge investigation and leak check.

ELOG V2.9.2-2455