ID |
Date |
Author |
Category |
Type |
Module |
Target/Number |
Subject |
1513
|
Friday, April 28, 2017, 12:04 |
Anders Mjos | Conditioning Station | Maintenance | | | MP1 problem |
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. |
1512
|
Thursday, April 27, 2017, 19:59 |
Aurelia Laxdal | South Hot-Cell | Repair | TM3 | no target | TM3 HV tests at atmosphere for Each Line(s) April 27, 2017 |
Today a HV test at atmosphere was performed for Each Line(s), while floating the other lines.
Please note the Einzel Lens line (Y) was grounded.
Tests performed:
1. Applied up to 29kV to "(A) OVEN -"
Sparks occurred at 29kV at the Fiber Glass inside the Service Tray; and at the right side at the lines wrapped in Fiber Glass.
2. Applied up to 29kV to "(B) OVEN +"
Sparks occurred at 29kV at the Fiber Glass inside the Service Tray.
3. Applied up to 6-7kV to "(C) TUBE -"
Could not identify the sparks; it was a continuous discharge.
4. Applied up to 6-7kV to "(D) TUBE +"
Sparks/discharges occurred at 6-7kV at the Fiber Glass on the right side at the lines wrapped in Fiber Glass. We had to turn OFF the lights in the Hot Cell to identify the small sparks.
5. Applied up to 4kV to "(P-Q) COIL +"
Discharge occurred at 4kV. Could not identify it.
6. Applied up to 29kV to "(R-U) COIL -"
Sparks occurred around 27-29kV at the Fiber Glass inside the Service Tray; and at the right side at the lines wrapped in Fiber Glass.
Tom saw a spark at 27kV between the Extraction Electrode holder and the Ground Electrode.
Saw also a spark at the Ring Alumina insulator in the Service Tray, located on top of the second comb insulator with Epoxi.
7. Applied up to 27kV to "(E) Cavity or MSP, (G) Gas, (J) Heat Shield" - all these are connected together at the BIAS voltage.
Sparks occurred at 27kV at the Fiber Glass inside the Service Tray.
8. Applied up to 23kV to "(I) EE" - this is for the Extraction Electrode.
Sparks occurred at 23kV again at the same spot near the bottom screw hole, between the Extraction Electrode holder and the Ground Electrode.
9. Applied up to 27kV to "(F) Plasma"- this is for the Anode.
Sparks occurred at 26-27kV again at the same spot near the bottom screw hole, between the Extraction Electrode holder and the Ground Electrode. |
1511
|
Thursday, April 27, 2017, 16:58 |
Isaac Earle | North Hot-Cell | Development | | | Right side NHC manipulator installed |
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 fit because the OD of the two halves were not concentric when assembled (arrived this way from CRL). The shielding was removed and 0.070" was cut down on the lathe, after which installation could be completed. The slave end lift bail and the pulley cover panel had to be removed for the manipulator to fit through the thru-tube. Both these items were reinstalled after the manipulator was in the wall, and it was confirmed that the slave end lift bail aligns with the slave-end removal hatch in the NHC roof. There was some difficulty getting the slave end to the horizontal position using the Y motion drive, also while preparing the manipulator for installation we noticed one of the Z motion tapes on the master side was sliding to the edge of one of the pulleys and rubbing - both these issues will be investigated at a later date.
We confirmed that it is possible to remove the master end using the manipulator cart. We will practice doing this at some point before the cell is commissioned. We will also do a run-through of slave end removal through the NHC roof.
Electronic copies of the Model-N installation and removal manual as well as the manipulator cart user manual are attached for future reference.
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Attachment 4: CRLD-1046-B_rev_1_Installation_Removal_Manual_(July_2013).pdf
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Attachment 5: Manipulator_Cart_User_Manual__(CRLD-1003).pdf
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1510
|
Wednesday, April 26, 2017, 17:55 |
Aurelia Laxdal | South Hot-Cell | Repair | TM3 | no target | TM3 Schedule updates at the South Hot Cell and CS |
Please see TM3's Updated Schedule (the current schedule) at the SHC and TCS.
For the record I am uploading TM3's Initial Schedule at the SHC and TCS. |
Attachment 1: April_–_May_2107_TM3_Updated_Schedule_at_the_SHC_and_TCS.docx
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Attachment 2: April_–_May_2107_TM3_Initial_Schedule_at_the_SHC_and_TCS.docx
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1509
|
Wednesday, April 26, 2017, 17:37 |
Aurelia Laxdal | South Hot-Cell | Repair | TM3 | no target | TM3 HV tests at atmosphere Pictures from April 19-21, 2017 |
Please see the first two pictures of the HV test at atmosphere done on April 19.
First picture shows a big spark between the Extraction Electrode mounting plate holder (at HV) to the Ground Electrode. Please note minimum gap between these electrodes is 7.8mm.
However the biggest visible spark was noticed at the bottom screw hole. (It is difficult to determine if at the 7.8mm gap were concomitant sparks occurring.)This spark started at 22kV and became stable above 24kV.
On April 20, 2017 Chad inspected this area with the Hot Cell camera and found a spark mark on the Extraction Electrode holder plate at the bottom screw hole. See the third picture.
Again it is very difficult with the existing Hot Cell cameras to inspect the areas where the gap is small (at 7.8mm gap between the conical surfaces of the Ground Electrode and Extraction Electrode holder)
In the second picture there are 2 small sparks: one on the top and another one on the right side at the lines wrapped in Fiber Glass. These sparks started at 20kV.
On April 21 the HV test was repeated with the Containment box ON and the sparks occurred again, at the same locations and at the same voltage. |
Attachment 1: DSC_0950.JPG
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Attachment 2: DSC_0899.JPG
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Attachment 3: SparkMarkEETM3.jpg
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1508
|
Wednesday, April 26, 2017, 16:52 |
Aurelia Laxdal | South Hot-Cell | Repair | TM3 | | TM3 Lower Service Tray Video Inspection |
chad fisher wrote: |
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.
Video can be found in docushare Document-142295
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The attached picture is from the video: showing the fiber glass inside the Service Tray. |
Attachment 1: FiberGlassInST.tiff
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1507
|
Wednesday, April 26, 2017, 13:35 |
chad fisher | South Hot-Cell | Repair | TM3 | | TM3 containment box removed |
the containment box has been removed from TM3. |
1506
|
Wednesday, April 26, 2017, 10:40 |
Travis Cave | South Hot-Cell | Standard Operation | TM3 | no target | Module move |
TM#3 has been moved from the north east silo to the south hot cell. |
1505
|
Wednesday, April 26, 2017, 10:24 |
David Wang | ITW | Standard Operation | TM2 | | TM2 ITW |
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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1504
|
Wednesday, April 26, 2017, 08:28 |
chad fisher | South Hot-Cell | Repair | TM3 | | TM3 progress and manipulators |
containment box was re-installed onto TM3 on Monday, Left manipulator may be showing signs of eminent handle or tong cable failure. |
1503
|
Tuesday, April 25, 2017, 19:35 |
Grant Minor | Crane | Repair | | | ISAC Target Hall Crane - West Hoist Brake Rattle |
Below is a report on the ISAC Target Hall crane brake issue observed yesterday and addressed today:
- On April 13th, both the East and West hoist brake assemblies were replaced by Gordon Crane & Hoist, after David observed a burning smell
- The East assembly was replaced with a completely new brake assembly from Kone crane
- The West assembly was replaced with a refurbished assembly, which used the East assembly housing fitted with a rebuild kit by Gordon Crane
- Yesterday while preparing TM3 for a lift, David noticed a vibration / rattle sound coming from the West hoist brake
- This issue was only observed when starting the hoist from a complete stop, at the slowest possible upwards hoist speed
- Once the hoist speed increased, the sound went away, even after returning to a slower speed
- Tom from Gordon Crane & Hoist came in this morning at 7am and replaced the new West assembly with the original West assembly, which had at that point also been fitted with a rebuild kit at Gordon Crane’s shop
- Tom also inspected the East brake assembly again
- Tom commented that he had issues setting the right gap between the friction plates and the brake rotor – too close and the brake would not release properly, too far and the brake rattle issue would be observed
- He also commented that during this most recent repair of the West brake, he applied never seize to the shaft and spline to ensure that this friction point was not an issue
- After Tom finished his repair and inspection of the brakes, David attempted a test lift of an SEG block (10 ton) at the slowest lift speed
- The rattle noise coming from the West brake was still observed
- Travis also tested the slowest speed in Remote Test mode from the control room, with David and Grant present in the Target Hall, the rattle was also still observed
- Tom advised that the rattle would not affect the safety of the hoist, and no damage would be done to the brake assemblies by running the hoist normally with the rattle noise
- Tom ensured that he would consult with Aiden and they would likely order a brand new West brake assembly from Kone
- Tom called Aiden Gordon to confirm that it was ok to proceed
- Aiden called me around 1:30pm and left a message that the slow speed rattle sound was benign and that we could proceed with normal operations, but he would definitely address the problem moving forward, and we should standby for his report
Photos and video have been uploaded to Docushare. The hoist noise before the repair and after the repair during the test lifts can be heard in the videos.
https://documents.triumf.ca/docushare/dsweb/View/Collection-19812
Thanks and regards,
Grant
--
Grant Minor, M.A.Sc., P.Eng.
TRIUMF Remote Handling Group Leader
Nuclear Engineer
4004 Wesbrook Mall, Vancouver
BC, Canada, V6T2A3
gminor@triumf.ca
(604) 222-7359
http://www.triumf.ca/profiles/4557
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1502
|
Monday, April 24, 2017, 16:11 |
David Wang | Conditioning Station | Standard Operation | TM2 | | TCS TP1s is restarted. |
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. |
1501
|
Monday, April 24, 2017, 16:06 |
David Wang | South Hot-Cell | Repair | TM2 | | Crane main hoist strane noise when lifting up TM2 |
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. |
1500
|
Monday, April 24, 2017, 09:52 |
David Wang | Conditioning Station | Standard Operation | TM2 | | Switch off TCS water system and vacuums |
The TCS bias was turn off before that. The TM2 and TCS are still under vacuum now. |
1499
|
Friday, April 21, 2017, 08:19 |
David Wang | Conditioning Station | Repair | | | Low frequency on TCS TGHT flow sensor. |
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 thermocouples are switched as well so no control system change is needed on epic page. Everything are re-labeled in TH. With less brazing joints closing to heater source, the MSP line should be ok. By further troubleshooting this issue, I think the problem on this low flow sensor frequency problem is on those 1/2" Parker gray water lines inside that big 6" white pipe. See attachments. The lines are are twisted, and could be squeezed in my view. Since everything is enclosed in that big pipe, It is hard to tell where the lines are squeezed and cause this restriction. Comparing to an open guide chase, this round pipe makes everything difficult. Hard to trouble shooting , hard to remove lines or add new lines. It only looks beautiful. I tried all I can do, But, I have no quick solution to solve this problem permanently. Maybe, Rob walker and his technicians has better skill or more strength on removing old lines, or adding new lines to solve the problem. |
Attachment 1: TCS_water_lines_001.JPG
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Attachment 2: TCS_water_lines_002.JPG
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Attachment 3: TCS_water_lines_003.JPG
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1498
|
Wednesday, April 19, 2017, 08:29 |
David Wang | Conditioning Station | Standard Operation | | | TH schedule 132 update in first beam week |
Update schedule to show job process in TH. See attachment 1,2. |
Attachment 1: Target_Hall_shedule_132_Apr_to_Sep.pdf
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Attachment 2: Target_Hall_shedule_132_Apr_to_Sep.mpp
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1497
|
Thursday, April 13, 2017, 14:16 |
David Wang | Crane | Repair | | | TH crane: east side main hoist brake assembly is replaced. |
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 brake assembly. Before that, No module move or other heavy lifting action should be fulfilled on TH crane.
2017-04-20. Tom Kauss finished the replacement of west side main hoist brake assembly. The old set up will be rebuilt, and stored as spare for the future. The load test is done. 10k lbs load was used for testing. Brakes work fine. No strange noise and smell has been found during the test. |
1496
|
Thursday, April 13, 2017, 11:44 |
Anders Mjos | Conditioning Station | Standard Operation | TM2 | Ta#51 | Conditioning Ta#51 |
Thursday, April 13, 2017, 11:43: Water package started. |
1495
|
Thursday, April 13, 2017, 11:33 |
David Wang | Conditioning Station | Standard Operation | TM2 | | Helium pressure test on TM2 water llines at TCS. |
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 |
TA- |
4.3XE-8 |
TUBE+ |
1.0XE-7 |
TUBE- |
5.9XE-8 |
COIL 1 |
2.2XE-9 |
COIL 2 |
0.0XE-9 |
EE |
0.0XE-9 |
MSP |
8.8XE-8 |
ALL TOGETHER |
6.7XE-7 |
ALL TOGETHER WITHOUT HS |
4.7XE-7 |
There is a smallleak HS which we did not see before. The HS is checked in SHC with helium spray yesterday. We did not see the leak . We checked this HS line every time when new target was installed. So mostly, this small leak is from VCRs connected to new target. But, we can not confirm it. Still this line will be checked on next new target. We should have a better understanding when checking next time. Other line are almost same as we checked in last year November. I did not see essential change. |
1494
|
Thursday, April 13, 2017, 10:32 |
chad fisher | South Hot-Cell | Repair | TM3 | | TM3 Lower Service Tray Video Inspection |
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.
Video can be found in docushare Document-142295 |