 Thursday, February 14, 2013, 15:43, Keith C Ng, M9, Maintenance, M9 Q1 Q2 removal, preparation 
|
Removed 8" rubber test rings from M9 T2 joint. Rings moved to RH warm cell. Radiation levels were 70 µSv on contact 1.7 µSv @ 1/2 m.
|
|
Friday, February 15, 2013, 14:29, Keith C Ng, M9, Maintenance, M9 Q1 Q2 removal, preparation
|
Beam lines group purged M9 Q1 Q2 magnets and water lines in preparation of disconnecting water services to those magnets, done in morning.
- Note: Q15 protueus paddle wheel was replaced after finding it was worn
|
|
Tuesday, February 19, 2013, 16:46, Keith C Ng, M9, Maintenance, M9 Q1 Q2 removal, preparation
|
Determined M9 Q2 service stand supply connector was slowly leaking.
- Ball valve to the supply was leaking through allowing trace amounts of water through.
- System was bled again and pressure relieved, leak appears to have stopped. |
|
Monday, March 04, 2013, 16:48, Keith C Ng, M9, Maintenance, M9 Q1 Q2 removal, preparation 6x
|
Preparing for M9 Q1,2 move:
1. Re-arranged/organized cables on top of magnet.
|
|
Thursday, February 21, 2013, 17:02, Keith C Ng, M9, Maintenance, M9 Q1 Q2 removal, joint dissassembly
|
CUALCW system water loss was not from 1A triplet. Q15 Q16 held static pressure at 90 psi since 9 am until 17:00. Holding with very minimal change in
pressure. Q14 reading 64 psi as of 17:00. D. Preddy informs all other systems leak tight.
|
|
Monday, February 18, 2013, 16:24, Keith C Ng, M9, Repair, M9 Q1 Q2 removal, electrical and water disconnected
|
Today, re-arranged electrical wiring on Q1 Q2 magnet away from Q2 indium joint. Cable bundles were bundled as neatly as possible.
- One of the klixon thermal switch wires broke off while the cable bundles were being organized. See photo.
|
|
Monday, February 25, 2013, 16:37, Keith C Ng, M9, Maintenance, M9 Q1 Q2 removal, Q2 seal disassembly 7x
|
Removed Q2 15" indium seal ring, discovered seal contained rubber on both sides instead of indium.
- Some kind of oil residue seen at the bottom of the sealing ring and inside of the Q2 vacuum box. (Note: Oil residue was from downstream vacuum
roughing pumps. They were connected when T2 M9 joint was leaking. Oil got into the vacuum pump back streamed into the beam line.) |
|
Friday, February 22, 2013, 17:27, Keith C Ng, M9, Repair, M9 Q1 Q2 removal, Q2 joint dissassembly
|
M9 Q2 15" pin drive was removed and disconnected.
- Pin drive retention screw had to be completely removed to be able to remove pin drive completely.
- Had to make tools to remove pin drive and retention screw, see photos. |
|
Tuesday, June 11, 2019, 14:56, Keith C Ng, M9, Development, M9 B1 seal notes from 1988
|
Found original installation notes for the initial installation of M9 Q1Q2 generation 2 in 1988.
Dated May 17th there is a notation that the 15 inch indium ring was loaded with "Gummy Mag". Note that the rationale for using an elastomer |
|
Friday, March 06, 2020, 13:36, Keith C Ng, M9, Repair, M9 B1 moved to warm cell
|
The M9 B1 was removed from the M9 channel surveyed and moved to the remote handling warm cell for refurbishment.
The warm cell is currently locked. Remote Handling should be contacted if access is needed to B1.
A field map of B1 is attached as a pdf file. |
|
Thursday, May 24, 2012, 18:59, Grant Minor, M20, Repair, M20 front-end leak vacuum check T2/Q1/Q2/Scraper 6x
|
Normal
0
false
false
false
EN-CA
X-NONE
X-NONE
|
|
Thursday, April 25, 2019, 11:13, Keith C Ng, M20, Repair, M20 Q2 repair notes
|
See attached scan for repair notes regarding M20 Q2 during the 2019 winter shutdown. The repair method for M20 Q2 was instigated by Doug Preddy and Beamlines
group. Cooling line was blanked off during the 2019 winter shutdown in order to keep the M20 beamline running without removing the magnet and doing a complete
repair on the leaking coil. |
|
Tuesday, February 17, 2015, 16:02, Keith C Ng, Primary Beamlines, Development, M13Q1Q2 vacuum box anchor (part of UCN work)
|
The replacement pin drive anchor (see TB22300) for M13 Q1Q2 vacuum box lowered into initial position. The original B1 base plate was able to rock when
weight was placed upon it; A concrete block was used to counterweight the base while the new pin drive was being installed. The pindrive has not been adjusted
into final position. |
|
Friday, February 20, 2015, 16:28, Keith C Ng, Primary Beamlines, Development, M13Q1Q2 vacuum box anchor (part of UCN work)
|
Installed Q1Q2 pin drive and attempted to align it to the vacuum box. Spent majority of the day trying to align the pin drive/anchor.
- Pneumatic drive does not actuate smoothly, appears to be binding/catching, possibly due to some kind of misalignment, issues with the pneumatics.
A 1" space between T1 and Q1 flanges has been set but has a slight taper, starting 1" wide on the north east side tapering down by ~1/16 (to |
|
Monday, February 23, 2015, 15:57, Keith C Ng, Primary Beamlines, Development, M13Q1Q2 blank off (part of UCN work)
|
"Hector" shield block installed into place, Q1Q2 Vacuum box still actuates normally. It does not appear that the position of the pin drive
has shifted. Some additional shielding steel is to be placed on top of the shield block once RH setup is removed.
Remote handling equipment installed around T1 ready to install indium blanking plate between T1 and M13Q1. |
|
Thursday, February 26, 2015, 16:22, Keith C Ng, Primary Beamlines, Development, M13Q1Q2 blank off (part of UCN work)
|
He leak checked T1M13Q1 joint, is leak tight.
- Detected a small leak in nearby M15 slits box. 4.3x10E-9 atm cc/sec was highest leak rate recorded (Vac group says is small leak, okay
to run). |
|
Tuesday, October 16, 2012, 19:47, Grant Minor, M9, Repair, Inspection of failed double-indium thru-ring TB22148
|
See inspection notes attached for failed M9T2 double-indium thru-ring TB22148, inspected on Oct 15th 2012.
Ring was approximately 3 mSv/hr on contact and 100 uSv/hr at 0.5 m.
Total dose accumulated during inspection on dosimeter 122 was 0.1 mSv |
|
Friday, February 13, 2015, 15:10, Keith C Ng, Primary Beamlines, Development, IVM3-IVQ4 indium joint section (WR #2686)
|
Installed 4" indium seal at 1VM3 to IVQ4. No real problems with installation.
|
|
Friday, October 19, 2012, 18:21, Grant Minor, M9, Development, 8" double-ring test samples of EPDM and BUNA-N (Nitrile)
|
Today I picked up two 2FT x 4Ft x 0.125" thick strips of stock EPDM and BUNA-N (Nitrile) material from BC Rubber Supply. A copy of the Packing
Slip is attached. Here is the information from the Sample Sheet:
|
|
Friday, January 29, 2016, 17:08, Keith C Ng, Primary Beamlines, Maintenance, 4VVR1 Removal
|
Today:
Disconnected and removed 4VVR1 gate valve and removed from beamline.
- Pin drives removed and stored in bags near by |
|