 Thursday, November 13, 2014, 14:05, David Wang, ITE, Repair, TM4, , Dan and I replaced flow wheel on ITE HVC2 water flow sensor.
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| Dan and I replaced flow wheel on ITE HVC2 water flow sensor. The old wheel did rotate smoothly inside its SST case. The new wheel works fine. |
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Tuesday, November 18, 2014, 11:14, David Wang, South Hot-Cell, Standard Operation, , UCx11, crane down UCx 11 target into SHC from TH
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I craned down UCx11 target from TH into SHC. Chad was in SHC service area watching on it. The source tray moving jig was installed on the crane for this
moving. |
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Tuesday, November 18, 2014, 11:15, David Wang, ITE, Standard Operation, TM4, Ta#44, TM4 has been disconnected in ITE.
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| Dan and I disconnected TM4 in ITE. |
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Wednesday, November 19, 2014, 11:12, David Wang, Conditioning Station, Standard Operation, TM4, , CS roughing pump is started.
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| CS roughing pump is started for TM4 and UCX 11 target. |
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Thursday, November 20, 2014, 14:12, David Wang, ITE, Standard Operation, TM4, UCx11, TM4 is connected in ITE.
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| TM4 has been connected connect in ITE. Water is supplied to TM4 module only. |
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Thursday, November 20, 2014, 14:13, David Wang, Conditioning Station, Standard Operation, TM4, UCx11, CS and TM4 was vented with Argon gas
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| CS and TM4 was vented with Argon gas this morning before it was moved from CS to ITE. |
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Tuesday, November 25, 2014, 11:33, David Wang, South Hot-Cell, Development, , , Remove UCX 11 target transfer stand from SHC back to TH.
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The stand was used for transferring UCX11 targte from TH to SHC. The stand wit target was craned down from TH into SHC last week and stayed there over
weekend. Chad and I removed the stand out of SHC yesterday. It was heavily contaminated. RPG and I spent more than 3 hours to clean this stand. See the
emails I pasted below for detail information. |
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Tuesday, November 25, 2014, 12:45, David Wang, ITE, Standard Operation, TM4, UCx11, 5 Shielding blocks have been transferred from ITW to ITE.
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| 5 Shielding blocks have been transferred from ITW to ITE. The ITE is configured to take proton beam. |
Tuesday, December 02, 2014, 13:33, David Wang, South Hot-Cell, Development, TM2, , Leak check on TM2 tube heater +(D) at SHC 
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Chad and I leak checked TM2 tube heater+(D) circuit at SHC with water bypass loop and new seals installed on the water block. The LD base LR 0.0xE-9
atm.cc/sec,base pressure0.0xE-4 torr. Chad sprayed helium on the leak check area in SHC for 5 seconds. No any response has been found on LD during 1minutes
waiting time. The test was repeated again and the result is same. NO LEAK at this stage! After the TM2 is moved to CS , The D line will be pressured |
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Thursday, December 04, 2014, 16:37, David Wang, Conditioning Station, Development, TM2, , connected TM2 and CS vacuum system .
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| I connected TM2 and CS vacuum system. All vacuum pumps on TM2 and CS are started .The pumping down is good so .far |
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Friday, December 05, 2014, 07:47, David Wang, Conditioning Station, Development, TM2, , TM2 at CS
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The pumping down on TM2 at CS was good overnight. However, the back up line pressure is still too high for LD to get to 0.0-E-9atm.cc/sec . It only could
get to 1.2xE-7 atm.cc/sec. It is not enough for a good leak check . I dont want to have any ambiguous situation on this" D" line leak check.
So,I am going to reconfigure the leak detector to the spare KF25 pot on the TM2 service cap. All pumps are stopped . The CS and TM2 will be vented soon. |
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Friday, December 05, 2014, 11:58, David Wang, Conditioning Station, Development, TM2, , helium pressure test on TM2 tube heater +(D) water lines. 6x
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At CS, The leak detector is hooked directly to the TM2 top service cap. The base LR 0.0xE-9 atm.cc/sec, base pressure 0.0xE-4torr. Applied 80 psi helium
to TM2 tube heater +(D) line . During 3 minutes applying time , I did not see any tiny change on LD readings. The line is perfectly vacuum sealed.
See attachment pictures. |
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Tuesday, January 06, 2015, 11:14, David Wang, ITE, Standard Operation, TM4, , 4 Shielding blocks have been moved out of ITE .
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| 4 shielding blocks have been moved out of ITE to block storage area. Fiona did the survey and with me during the move. |
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Thursday, January 08, 2015, 08:04, David Wang, ITE, Standard Operation, TM4, , TM4 water lines have been disconnected in ITE and purged.
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| TM4 waterlines have been disconnected and purged in ITE. The TM4 vacuum system is still in operation. |
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Friday, February 06, 2015, 08:06, David Wang, Crane, Repair, , , TH crane lost movement controls since last Friday.
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Last Friday, During the crane per use check, I found the main power supply to to crane was shut off. I was told Don and Travis shut off the main
power before Triumf power outage. Travis restored crane main power and I could turn on the main relay on radio pedant in TH. But, I didnt
have all crane main bridge movement controls on TH raido pedant except rotation. I still have all movement controls on small trolley from the radio pedant. |
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Friday, February 06, 2015, 12:27, David Wang, Crane, Repair, , , TH crane troubleshoot
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Gordon crane technician started TH crane trouble shooting this morning. The problem is found that there is no 115VAC power supply to energize a
main coil which is used to switch on 450V AC power supply to crane. He did a test and found the crane could be operated by big yellow pedant
in control room when he manually gave the coil 115VAC power supply to energize it.. At that moment, the crane is set to big yellow pedant operating mode. |
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Thursday, February 12, 2015, 09:11, David Wang, Crane, Repair, TM4, , TH crane troubleshoot and annual inspection.
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Gordon crane technicians continued their troubleshooting on this Tuesday. They found the crane up-limit protection switch which is installed on the same
bracket with the the crane down view camera is broken. The spring inside the limit switch which is used for pushing the action plunge out in the
switch lost its function. This up limit switch is the last protection for the crane so it is set as when it is in action the crane main contact coil |
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Monday, February 16, 2015, 11:57, David Wang, Crane, Repair, , , TH crane
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Dave.Morris installed a new battery on crane control PLC board and uploaded the program. Travis, Dan and I tested the crane in local, remote, and test
mode. The crane works fine. Also, the TH lock up has been tested. Everything is good. |
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Monday, February 23, 2015, 12:28, David Wang, ITE, Maintenance, , , 2015 shut down coils and pedal wheels replacement on ITE water flow sensors.
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| Dan and I replaced pedal wheels and coils on ITE water flow sensors. It is a shut down job we did every two years. See attachment for detail. |
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Wednesday, February 25, 2015, 10:44, David Wang, ITW, Maintenance, , , 2015 shut dwon ITW water sensor coils and pedal wheels replacement
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| Dan and I replaced pedal wheels and coils on ITW water flow sensors. It is a shut down job we did every two years. See attachment for detail. |
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