Franco Mammarella was consulted regarding electrical grounding of the NHC design (RS103 of Document-131915).  After discussing the design, and having grounding inspected by Randy Boehm, Franco approved the design and advised that the grounding system should be inspected periodically.  This task has been added to the Remote Handling inspection index on an annual schedule.  A PDF copy of the e-mail correspondence with Franco is attached.

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

3 damaged 24VDC plugs of TP solenoid valves are replaced. Inspected other plugs. All of them are in good condition now.

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.  

 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.

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

No issue.

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

I will restart all pumps Monday morning.  

 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.

TCS: TP1, TP2 and TP1S are started.

 TM#2 has been moved from the south hot cell to the conditioning station.

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.

 Electrical check of the target module with the UC#25 attached after the beam run.

 TM#4 with UC#25 has been moved from ITW to the south hot cell.

The tCS will be vented soon for TM2 move later this week.

Started argon venting of ITW now.

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.

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.

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.