Disassembled the master side of the right manipulator this morning to check the wrist cable. The cable on the master side shows no sign of wear or fraying suggesting that the slave side cable may be the item that is wearing. during disassembly of the master I did notice some loose parts that could have been the source of the audible concern but should not have contributed to the slippage felt in the gripper. I will try and schedule Tuesday for entry into the hot cell to address the slave cable.

Water cooling is performed manually with CP1. RGA is ON since yesterday. EE is not connected and in conditioning mode.

Friday, August 12, 2016, 10:43: BIAS at 10 kV, EL at 0.5 kV. IG1 at 1.8E-6 T

 Friday, August 12, 2016, 11:04: BIAS at 20 kV

Friday, August 12, 2016, 11:10: Sparking at 21 kV

Friday, August 12, 2016, 11:29: BIAS at 22 kV. Many small sparks/current excursions.

Friday, August 12, 2016, 11:32 : BIAS at 23 kV

Friday, August 12, 2016, 11:37: BIAS at 24 kV

Friday, August 12, 2016, 11:43: BIAS at 25 kV. Heavy sparking. Lowered to 24 kV to reduce spark rate.

Friday, August 12, 2016, 11:52: Increased sparking rate. Lowered to 23 kV.

Friday, August 12, 2016, 12:05: Lowered to 20 kV

Friday, August 12, 2016, 12:21: Back to 23 kV

Friday, August 12, 2016, 12:28: Heavy sparking between 23 and 24 kV. Lowered to 22 kV

Friday, August 12, 2016, 12:29: More sparking. Lowered to 21 kV.

Friday, August 12, 2016, 13:02: Increased back up to ~25 kV while Aurelia was listening for sparks in the Target Hall.

Friday, August 12, 2016, 13:03: EL to 10 kV

Friday, August 12, 2016, 13:06: BIAS / EL to 23 / 12.5 kV

Friday, August 12, 2016, 13:34: Repeated sparking at 24.5 kV. Ramping down

Friday, August 12, 2016, 15:33: Stopped water package. RGA off

Weekly update target hall schedule. Everything on schedule are finished  on time.   See attachment.  

Field readings have been taken at the south hot cell in preparation for entry into the cell to fix manipulator.

Field on contact at aluminum cover is 66 uSv/h, and a pole monitor into the cell through the tool port read 297 uSv/h.

The TCS is venting now. The TM3 blue insulator replacement job will be started soon.

Anders Mjos wrote:

Anders Mjos wrote: Plant Services group (Tony) will contact a service tech on Monday. Water system will be switched off over the weekend. Thursday, July 14, 2016, 13:24: Claus from Daikin is on site to troubleshoot. The VFD driven fan motor has failed. Temporarily blocked air-flow through failed fan to improve air-flow to radiator. A new motor will be ordered (Curtis). Thursday, July 14, 2016, 15:39: Stopped cooling system for the day Friday, July 15, 2016, 08:16: Cooling system started Friday, July 15, 2016, 15:00; Cooling system stopped.

 Thursday, August 18, 2016, 10:34: The motor was replaced today by Claus from Daikin. System is running normally again.

South hot cell was entered to check to replace cable if needed. Wrist cable showed no signs of fraying or broken strands.

A tong with new cable pre-installed is now in the hot cell for next time this job needs to be done. There is also another spare tong cable not installed in a tong located in the box of manipulator repair equipment located inside the hot cell.

Both manipulator slave ends were lubricated whilst inside.

Plastic has been removed from the floor and any known active items in the hot cell moved to the south east corner in an attempt to shield the anteroom. Fields at the aluminum panel were reduced from 66 uSv/h to 58.8uSv\h. No contamination found on walls, floor, tacky mats, or standard aluminum cover. The aluminum cover with breathable air line hole did have 400 counts on 44-2, 1200 on ludlum.

Ta#49 has been installed on TM2 and tested. All high current fasteners torqued to 130 in lbs.

Remaining items from anteroom have been bagged and removed (save the boot boxes, 1 garbage can and 1 coverall garbage can).

Room is ready to be surveyed so it can be deemed a non-boot box area for painting.

TM2 was disconnected in ITW yesterday and moved to SHC.

Chad and I leak checked Tm2 Hs line with new target installed. Base LR 0.0Xe-9 atm.cc/sec.   No leak has been found. This line will be helium pressured at TCS later.

Start of roughing now.

I did a helium pressure test on TM2 HS water line at TCS. Leak detector base leak rate only could get to 1.8x e-8 atm.cc/sec at this moment. Applied 5 minutes 70psi helium on it. No leak has been found at this level. I connected water to this circuit after the test for weekend TM2 conditioning at TCS.

I will do another helium pressure test after the conditioning. The LD base leak rate should be 0.0Xe-9 atm.cc/sec at that time.

2016-08-29: LD Base leak rate 0.0xe-9atm.cc/sec.TM2 HS line helium pressure check again after conditioning. 70psi helium 5minutes. no response on LD. HS line is perfectly sealed.

The HV cover is installed. The Faraday cage at B2 level is locked also.The TCS and TM2 are still pumping down. Everything is good so far.

Weekly update schedule.  See attachment 1,2.

I stopped TCS water pumps and vacuum pumps also.   TM2 and TCS will be vented tomorrow morning.

  ITW turbo pumps  have been started.

5shielding blocks have been transferred from ITE to ITE. ITW is configured to take proton beam.

 Measurements were taken today of the NHC north/south wall gap at the location where the NHC/TCS partition wall will be installed (43.375" from the NHC west wall).  A HILTI PD40 laser range meter was used for the measurements.  They were taken at 10", 34", 62", 90", 118", and 142" from the floor which matches the top of each cross-beam.  The results are below:

10" from floor:  102.44"
34" from floor:  102.40"
62" from floor:  102.48"
90"  from floor:  102.63"
118" from floor:  102.28"
142" from floor:  102.24"

Based on these results a partition wall plate width of 102.00" will be used for the bottom two plates, and 102.25" for the upper three plates in order to keep the gap on each side approximately 1/8"