Chole and I finished ITW water signals interlock. No issue.

Service of  Parker 1/4 quick connectors in ITW and ITE have been done.  all 28 female connectors were serviced. o- rings and valve stem in quick connectors were replaced. the serviced connectors have been installed back to ITW and ITE.  Visually inspected all connectors with flowing through them. No leak, and they function well. 

To prevent TP bearings seize during shut down, ITW:TP3,TP4, TP1S TP4S have been started since March 06th. They work fine.  The plan is to switch them off this Thursday, and restart them in May before ITW in use.

ITE water signals interlock annual check is done today. all interlocks work . No issue.

TCS water system filters annual replacement has been done. Plant group Dan Tower finished the job and updated the inspection tags .

2 broken lights of NHC were replaced in Target Hall. see pics attached.

Adam and I did  spent target pail and its lifting jigs load test this morning.  The load for full pail test is 263 lbs and for empty pail is 69 lbs. pail and all jigs passed the test.

On March 27 remote end 9342 was installed on the west position (right hand as viewed by operator) and arm 9**4 removed and moved to anteroom.

Previous to this installation, arm 9342 received tensioning of the elevation twist pulley block and tightening of the tong cable opening via the tong cable drum. Tong opening was reduced to roughly 2" to achieve tension in the tong cable such that slack upon release of the system was reduced and tong cable didn't hop pulley in elevation/twist pulley block (this 2"opening is not enough to grasp the air ratchet but is suff. for holding a target...right manip will have to hold the air tool for now. It is also notable when dealing with the tong cable system that slack can cause the tong cable to hop off the secondary pulley in the wrist joint (where two cables run through a secondary pulley that has no retention feature).

Notable during this repair was the fact the the lock-down set screws on the elevation/twist pulley block were missing. These lock down the tensioning screws once the block has been tensioned. New set screws were installed after elevation twist cables were tensioned to their nominal value of 15 in lbs.

It is my recommendation that, when the spare remote arm is fixed and there is a window that this arm come back out and the tong cable be replaced (we have 6 on hand).

Tong cable on remote arm 9**4 has be relocated onto its pulleys and tong opening adjusted at the tong cable drum by changing the position of the tong cable screws by two positions (tightened/closed) such that the air tool will fit in the tong and some of the slack in the tong system has been taking up.

An attempt was made to also adjust the elevation twist pulley block which would also aid in taking up slack in the tong system however, the elevation twist pulley block was already and the end of its adjustment. Elevation twist cables are measuring 10 in lbs, the nominal value that they should be at is 15.

Tong system has been cycled multiple times and the tong cable itself looks good. This arm should be good for service however, I recommend a new pulley block be ordered and the new one dimensional compared to the existing. If they are the same we may consider shortening the new pulley block to achieve a window for tensioning, after which I would recommend the pulley blocks be swapped...swapping should only take place after 9342 has had the tong cable replaced and we can be more confident in its operational state, or in the 2026 shutdown in allowed.

TM4 was moved from Safe Module Parking to the North Hot Cell today.

Refilled TCS:TK2 from 11" to 28.8 ".

A safety walkaround was completed for the ISAC Hot Cells and Target Hall Areas.

The resulting spreadsheet can be found on DocuShare as Document-242733.

Main deficiencies identified:

• Hot Cells:
  • Overdue fire extinguisher inspection
  • NHC oil level depleted - to be filled
  • SHC breathable air certification expired (may have been checked but just not updated - to follow up)
  • SHC left manipulator tong cable snapped (planned May 22 repair)
• Target Hall:
  • NHC depression indicator calibration expired and reading is 0 (requested mech services to check this in Oct 2024)

Action has been, or will be, taken on all deficiencies.