 Friday, August 10, 2012, 14:08, Rick Maharaj, , , , , , , , Gas line pump
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Gas line vacuum pump reinstalled after fitting was modified to receive a standard swagelok connector. The vacuum line was plumbed using 1/4" copper
tube (not Stainless) for the the ability to flex and manipulate the line for pump removal and and insertion. |
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Friday, August 10, 2012, 13:48, Anders Mjos, , , , , , , Problems/Solutions, He line leak checked - leak fixed
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A major leak was found on the connection to the regulation valve on the He bottle. Ferrule replaced. System leak checked.
After He bottle: base 5E-6, no response to He spray
AfterSV1: base 5E-7, no response |
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Friday, August 10, 2012, 12:44, Pierre Bricault, NA, LP-FEBIAD, , , NA, NA, In progress, FEBIAD test
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Rick put the helium bottle back in the rack.
Waiting for status of the gas lines.
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Friday, August 10, 2012, 11:29, Pierre Bricault, NA, , , , N A, NA, In progress, Test FEBIAD
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The helium bottle was found empty.
Rick will refill it and hook the leak detector on the system to find out
if we have a leak on the line. |
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Thursday, August 09, 2012, 13:08, Pierre Bricault, , , , , , , , Test FEBIAD
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| Waiting Rick for the fitting on the vacuum pump. |
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Thursday, July 19, 2012, 12:59, Anders Mjos, , , , , , , Problems/Solutions, Leak checking doors - no response
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Thursday, July 19, 2012, 12:57: Doors leak checked. No response. Base rate 1.6E-8 atm-cc/sec. TP pressuer 0.0E-4 Torr . TSGIG1 4.2E-6 Torr. TSG:CG1A
0.014 Torr. |
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Thursday, July 19, 2012, 11:32, Anders Mjos, , , , , , , Done, Pumping down
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Thursday, July 19, 2012, 11:29: roughing
Thursday, July 19, 2012, 11:49: starting turbos
Thursday, July 19, 2012, 11:54: TP1B at speed |
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Thursday, July 19, 2012, 08:42, Anders Mjos, , , , , , , Problems/Solutions, Leak checking source chamber - leak found on front door
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Due to high vacuum a leak check will be done on the system.
Thursday, July 19, 2012, 09:00 : Base leak rate 4E-9 atm-cc/sec
Thursday, July 19, 2012, 09:07: Leak detected on side door. Mid 1E-8 range. |
 Thursday, July 19, 2012, 11:31, Anders Mjos, , , , , , , Problems/Solutions, Wiped o-rings and sealing faces
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Anders Mjos wrote:
Due to high vacuum a leak check will be done on the system. |
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Thursday, July 19, 2012, 09:35, Anders Mjos, , , , , , , Done, Venting to investigate leak on front door
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Thursday, July 19, 2012, 09:35: Switched off both turbos.
Thursday, July 19, 2012, 10:23: Venting
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Tuesday, July 17, 2012, 10:10, Anders Mjos, , , , , , , Problems/Solutions, Gas lines leak checked - air supply leak on manifold
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Leak found on the Ne supply line. 1E-4 - 1E-5 range. Replaced fittings. Had to use one brass piece. Leak rate 6E-9 (probably due to Ne response). No
response to He.
Leak rate around low E-8 with regulation valve open. |
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Wednesday, July 18, 2012, 14:08, Anders Mjos, , , , , , , Problems/Solutions, Air supply leak on manifold fixed
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Anders Mjos wrote:
Leak found on the Ne supply line. 1E-4 - 1E-5 range. Replaced fittings. Had to use one brass piece. |
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Monday, July 16, 2012, 15:46, Anders Mjos, , , , , , , In progress, Pumping down
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Monday, July 16, 2012, 15:11: Roughing.
Monday, July 16, 2012, 15:38: Turbos started.
Monday, July 16, 2012, 15:46: TSGTP1B at speed TSGTP1A timeout. |
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Thursday, July 12, 2012, 15:49, Anders Mjos, , , , , , , , test stand vented for TP1A replacement
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| see e-fault 6142 |
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Thursday, July 12, 2012, 13:49, Anders Mjos, , , , , , , Problems/Solutions, Aluminum oxide found inside TSHSV1
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Aluminum oxide found inside TSHSV1 and the copper line to TSHUHV1.
SV1 replaced and copper line cleaned. |
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Thursday, July 12, 2012, 13:41, Anders Mjos, , , , , , , Done, purging gas lines with air
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gas lines purged with air for 60 min (through TSHUHV1 and TSHSV4).
gas line allowed to fill with nitrogen to 300 torr and evacuated.
repeated 3 times.
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Thursday, July 12, 2012, 12:23, Anders Mjos, , , , , , , Done, TSH:SV5 bypass on
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| Thursday, July 12, 2012, 15:48: bypass removed |
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Thursday, July 12, 2012, 09:44, Anders Mjos, , , , , , , In progress, Venting
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System will be vented and gas lines purged with air, then nitrogen.
Thursday, July 12, 2012, 09:43: Shut down TSGTP1B. |
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Thursday, July 12, 2012, 09:05, Anders Mjos, , , , , , , Problems/Solutions, Shut down TSGTP1A - bearing noise
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| Shut down TSGTP1A due to noise (possibly from bearings) after consulting Edi. |
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Wednesday, July 11, 2012, 15:30, Anders Mjos, , , , , , , Problems/Solutions, Restarting turbos after power bump
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Wednesday, July 11, 2012, 15:27: Started TSGTP1A and 1B
Wednesday, July 11, 2012, 15:31: Started TSMTP2 and 6
Wednesday, July 11, 2012, 15:33: TMS tubos at speed. Vacuum 4.8E-7 |
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Wednesday, July 11, 2012, 11:16, Anders Mjos, , , , , , , In progress, Pumping down - with new turbo pump
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Tuesday, July 10, 2012, 16:01, Anders Mjos, , , , , , , Problems/Solutions, Turbo replaced - cleaning chamber recommended
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A new turbo has been installed. Eddie said the other one had crashed but not catastrophically. He recommends the test stand
be wiped clean before pumping because there is a fine layer of Aluminum dust on the chamber base.
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