 Monday, May 04, 2015, 13:32, Anders Mjos, Conditioning Station, Maintenance, , , TK2 expansion tank topped up
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Caled cyclotron ops to open P23 and confirmed penthouse valve open.
Filled up TK2 to 21 in water leve. |
Monday, May 08, 2017, 09:49, David Wang, Conditioning Station, Standard Operation, , , TH schedule 132 update weekly 
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| Update TH schedule weekly to show the job process. |
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Wednesday, May 24, 2017, 08:11, David Wang, ITW, Standard Operation, TM2, , TH schedule 132 update weekly
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| See attachments. |
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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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Tuesday, January 24, 2023, 07:26, David Wang, Conditioning Station, Standard Operation, , , TH floor moping and garbage collelctions.
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Plant group and us finished TH floor mopping and garbage collections last Wednesday. Th moping head had 800 count after using. all garbage were
bagged , checked, tagged, and sent to radwaste area. |
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Thursday, June 04, 2020, 10:51, David Wang, Conditioning Station, Standard Operation, , , TH floor mop up.
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Jason Sargeant mopped up TH floor this morning. The mop head was checked after the job. There are 1500 counts on it. He think this level is reasonable
low. 3000 counts would be normal in past. |
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Monday, March 09, 2020, 14:31, David Wang, ITE/ITW, Standard Operation, , , TH emergency exit test.
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| Frank and I did the test. The emergency exit hatch on roof was opened and closed twice. Everything works fine. |
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Monday, January 24, 2022, 11:18, David Wang, ITE/ITW, Standard Operation, , , TH emergency exit hatch functional check
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TH emergency exit hatch which is located on TH west end roof is opened and closed for functional check. The hatch works fine. The limit switch on hatch
is in position. No obstacle on hatch way to the roof. |
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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 |
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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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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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Friday, June 06, 2025, 08:36, David Wang, Crane, Maintenance, , , TH crane main hoist B starting delay issue appears again.
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TH crane main hoist B starting delay issue appears again this Thursday. It is about 1 minute waiting time after power on the crane. this is an old problem
we spent so much time in investigation and tried solve during last summer and fall. During this period, the delay time became shorter and the problem disappeared
completely in November. It worked fine since then until this this day. TH crane still works fine other than it. I will watch in this issue closely. |
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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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Thursday, January 02, 2020, 10:10, David Wang, Crane, Standard Operation, , , TH crane issue.
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Target hall crane does not work properly after TH crane main power is switched off during Christmas time in control room. I switched the main power
back this morning. The only movement could be operated is crane rotation. Power is supplied crane. The control on N-S, E-W and up-down movements
do not work. We had the same problem last year. After trouble shooting, It was pointed to a PLC battery issue. Control group changed the battery and reloaded |
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Friday, May 05, 2017, 11:06, David Wang, Crane, Standard Operation, TM3, , TH crane is used for 5 shielding blocks transferring.
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TH crane is used for transferring five shielding blocks(30000lbs) today. All brakes work fine. Mostly, I do not need crane slow up motion for
this job so during 1 hour moving, no rattle sound and burning smell has been found. I think TH crane is good to use as we decided. |
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Friday, June 23, 2017, 12:08, David Wang, Crane, Repair, , , TH crane inspection and probem fixing by Gordon crane
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Gordon crane technician Peter came in today and checked TH crane. Maico and I were there with him. What he found is that brake gap on both side of
main hoist decreased after months of using. The solution is to lock the automatic self adjustment system so the gap will be fixed there. Each year
during annual inspection, they will adjust the gap manually. After he locked both side of device, I tested the crane up and down couple of times. The |
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Friday, May 12, 2017, 07:42, David Wang, Crane, Repair, , , TH crane burning smell, smoke, and big noise on east side main hoist brake assembly.
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This morning, when I prepare for today's crane check, The crane made a very strong noise without any load during the full speed up motion. I stopped
the crane right away, and noticed that east side of main hoist motor area was smoking . The crane was moved to east end. And, I climbed up to the top,
and found the smoke is coming form brake side, and should be produced by braking. The smell is same as before.Unless other thing is wrong, I think |
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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, 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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Thursday, February 26, 2015, 09:22, David Wang, ITW, Standard Operation, , , TH Shut Down Activities Schedule Feb 23th- Mar 25th
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TH shut down activities schedule from Feb 23th-March 25th. The schedule will be updated each week. See attachment 1.
Feb-27-2015: Updated the schedule, and uploaded as PDF file. See attachment 2. |
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