 Wednesday, April 12, 2017, 12:51, David Wang, South Hot-Cell, Repair, TM3, , TM3 Ram readings @ SHC
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We have a ram installed on SHC pole which is 0.5 meter to module shielding block surface. the readings we got today during TM3 move:
at containment box center (highest reading): 3.14 msv/hr.
at bottom of shielding blocks: 960 usv/hr. |
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Thursday, April 13, 2017, 10:32, chad fisher, South Hot-Cell, Repair, TM3, , TM3 Lower Service Tray Video Inspection
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A video inspection of the lower service tray was performed this morning. Camera was inserted upwards into the service tray/service chase from the containment
box. One potential spark mark was identified as well as epoxy not flush with insulator. Fiberglass does not extend into service tray/chase much and does
not look, from initial inspection that it will be too difficult to remove. |
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Thursday, April 13, 2017, 11:33, David Wang, Conditioning Station, Standard Operation, TM2, , Helium pressure test on TM2 water llines at TCS.
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LD BLR :0.0 X E-9 atm.cc/sec. BP:0.0XE-4 torr. helium 70 psi. 3 minutes on each circuit
HS
1.8XE-7 ATM.CC/SEC
TA+
1.4 XE-7
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Thursday, April 13, 2017, 14:16, David Wang, Crane, Repair, , , TH crane: east side main hoist brake assembly is replaced.
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Gordon Crane technician Tom Kauss finished the replacement of the east side main hoist brake assembly. A new set up is installed. he adjusted gap too
close during first time try. So, the smell appeared when operate the brake. He increased the gap to a proper distance then. It looks like everything works
fine now. Still, The brake need to be tested with 10K lBS load on it. We will do the load test on next Thursday when he come here to replace west side |
Wednesday, April 19, 2017, 08:29, David Wang, Conditioning Station, Standard Operation, , , TH schedule 132 update in first beam week 
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| Update schedule to show job process in TH. See attachment 1,2. |
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Friday, April 21, 2017, 08:19, David Wang, Conditioning Station, Repair, , , Low frequency on TCS TGHT flow sensor.
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Anders and I found a low frequency issue(13hz only) on TCS TGHT flow sensor when doing TM4 conditioning. By trouble shooting, We found the module water
lines are good. the restriction cause this problem in on TCS supply or return water lines to TGHT. I switched TGHT lines with MSP water lines. The
wheel frequency on TGHT is 67.0hz which is pretty high. Now, MSP is using the original TGHT water line(flow sensor frequency 13hz). Flow sensors and |
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Monday, April 24, 2017, 09:52, David Wang, Conditioning Station, Standard Operation, TM2, , Switch off TCS water system and vacuums
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| The TCS bias was turn off before that. The TM2 and TCS are still under vacuum now. |
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Monday, April 24, 2017, 16:06, David Wang, South Hot-Cell, Repair, TM2, , Crane main hoist strane noise when lifting up TM2
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When lifting up TM2 (20000lbs) this afternoon, TH crane has a strange noise on main hoist. The module was lift up less than 1 feet.when strange
sound was noticed. The module move was stopped right away,and module was lowed back to SHC. The strange noise was confirmed later with SEG
block six inches lifting up. Gordon crane technician will be here to tomorrow morning to investigate the problem. |
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Monday, April 24, 2017, 16:11, David Wang, Conditioning Station, Standard Operation, TM2, , TCS TP1s is restarted.
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TCS IG1S is switched on as well. The reason to start the pump is to prepare a possible extended TM2 conditioning at TCS caused by TH crane issue.
TCS:TP1 and TP2 are not switched on for this. |
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Tuesday, April 25, 2017, 19:35, Grant Minor, Crane, Repair, , , ISAC Target Hall Crane - West Hoist Brake Rattle
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Normal
0
false
false
false
EN-US
X-NONE
X-NONE
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Wednesday, April 26, 2017, 08:28, chad fisher, South Hot-Cell, Repair, TM3, , TM3 progress and manipulators
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| containment box was re-installed onto TM3 on Monday, Left manipulator may be showing signs of eminent handle or tong cable failure. |
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Wednesday, April 26, 2017, 10:24, David Wang, ITW, Standard Operation, TM2, , TM2 ITW
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TM2 was moved and connected in ITW yesterday afternoon. After roughing down, ITW turbo pumps are started. ITW TP4 can not be started to full speed. ISAC
ops kept it at low speed mode with less than 1.0A current draw on pump. ITW IG1s shows red as well. I will take a look on them today when beam is off.
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Wednesday, April 26, 2017, 13:35, chad fisher, South Hot-Cell, Repair, TM3, , TM3 containment box removed
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| the containment box has been removed from TM3. |
 Wednesday, April 26, 2017, 16:52, Aurelia Laxdal, South Hot-Cell, Repair, TM3, , TM3 Lower Service Tray Video Inspection
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chad fisher wrote:
A video inspection of the lower service tray was performed this morning. Camera was inserted upwards |
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Thursday, April 27, 2017, 16:58, Isaac Earle, North Hot-Cell, Development, , , Right side NHC manipulator installed
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Installation of the NHC right side manipulator was completed yesterday. The three piece manipulator was assembled in the module assembly
area on the manipulator cart which was then craned through the hatch to the NHC service area (the slave end had to be removed for it to fit through the
hatch). The installation went relatively smoothly except for the second (cold side) piece of lead shielding around the thru tube which would not |
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Friday, April 28, 2017, 12:04, Anders Mjos, Conditioning Station, Maintenance, , , MP1 problem
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TCS:MP1 was tripping of intermittently yesterday. It was found by Dave Morris that the current sensor was not set correctly causing the pump on status
to flicker at times. Dave adjusted the settings yesterday. The system should be operational and is currently running normally. |
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Monday, May 01, 2017, 08:53, chad fisher, South Hot-Cell, Repair, TM3, , Fiberglass removal
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| Fiberglass, capton tape and tie straps have been removed from TM3. |
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Monday, May 01, 2017, 12:32, David Wang, Crane, Repair, , , TH crane burning smell
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TH crane burning smell showed again this morning. It appeared after 1-1.5 hours of continuously using during the F308 flasks moving in TH.After a certain
time of using I think the brake gap is reduced because of thermal expansion. The main hoist and brakes work fine still. We knew these brakes gap
are tight especially on west side. So, It is not surprised that this burning smell appeared again. It does not affect the safe of crane use in my view. |
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Monday, May 01, 2017, 13:11, David Wang, South Hot-Cell, Repair, TM3, , Electrical Check on TM3 after fibergalss is moved in SHC.
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RU( coil 1), F (anode), and 60kv bias(HS, Gasline, and MSP) are shorted together. Other lines are good. They are measured between individual
line each other @500V. The megga showed OL. All of them to ground are OL @500V as well. EL is grounded during check. |
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Tuesday, May 02, 2017, 09:48, Isaac Earle, North Hot-Cell, Development, , , NHC polycarbonate window cover panel installed
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The window cover panel has been installed on the hot side of the NHC shielding window according to drawing IRH1638. It was necessary to drill
and tap a hole in the steel frame first to achieve proper grounding for stud welding. The strength of all studs were checked by installing a nut
on the stud tightened against a block up against the steel frame, which was then torqued to a minimum of 10 ft*lbs. For the final installation the |
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