 Tuesday, January 06, 2015, 11:21, Anders Mjos, Conditioning Station, Development, TM2, , He leak check of cooling circuits. 
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No leak detected on either He-detector (connected directly to Service Cap) or on RGA. See attached screen shots.
A vacuum increase (air only on RGA) was seen when de-pressurizing circuit I. |
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Wednesday, January 07, 2015, 09:31, Anders Mjos, Conditioning Station, Development, TM2, , High Voltage Conditioning
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No Source Tray installed. Loop on cooling circuit D. All other circuits blanked off.
Voltages stated below are set point voltages. These corresponds reasonably well with the local read backs on the power supplies. The read back
voltages in EPICS are somewhat lower. |
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Thursday, January 08, 2015, 15:24, Anders Mjos, Conditioning Station, Development, TM2, , Fault 2 on chiller unit
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Found both VFDs with OF3 fault (over voltage during constant speed operation).
Thursday, January 08, 2015, 16:37: Cycled power on the chiller to clear faults. |
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Monday, January 12, 2015, 14:29, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Tray Build Status
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Countersink problem with supports has been remedied. Scratches, dings, and pitting has been buffed out and supports re-cleaned and re-assembled.
Friedhelm was consulted regarding the appearance of fine scratches on the main stand-off insulators...the best two matching ones were chosen and
assembly continued. |
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Tuesday, January 20, 2015, 13:45, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Tray Alignment
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TM2 Tray Alignment is complete except for verification with alignment tray.
First attempt results were:
Front Target: Low 0.011, Left 0.011 |
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Monday, January 26, 2015, 09:36, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Tray Alignment
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TM2 tray alignment was confirmed with the alignment tray this morning:
Front target 0.000 vertically, 0.000 horizontally.
Back target 0.003 low, 0.000 horizontally |
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Wednesday, January 28, 2015, 10:42, Anders Mjos, Conditioning Station, Maintenance, TM2, , TCS shut down for site wide power outage
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Thursday, January 29, 2015, 11:31, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Tray Build
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On Tuesday morning I attempted to complete assembly of the source tray for TM2 however discovered that 3 1/4-20 x 0.25 titanium helicoils had not been
installed into the mounting plate as they should have been. Checked and asked around for them but to no avail. I have ordered some, they should have been
here yesterday. |
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Monday, February 02, 2015, 09:59, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Tray Build
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Missing heli coils installed this morning.
Threads had to be chased with tap for 1/4-20 heli coil and missing countersinks hand applied to allow for installation. Care was taken to ensure
no "swarf" was spread and operation was super clean. Chased holes blown out with canned air and a vacuum placed on the other side. |
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Monday, February 02, 2015, 14:06, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Tray build
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Master target jig installed to locate attachment bracket ITA3389 as well as conductor insulator block b (aluminum / for soldering version) and oven conductor
blocks (ITD0353 and 03356).
There were NO ITA6145 fasteners or TGN0076 either. Standard 1/4-20 x 1" fasteners have been used in there place for now. Keith is following |
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Thursday, March 12, 2015, 09:48, Travis Cave, South Hot-Cell, Standard Operation, TM2, No target , Module move
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| TM#2 with no target and no source tray has been moved from the conditioning station to the north east silo. |
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Tuesday, March 31, 2015, 11:36, chad fisher, South Hot-Cell, Development, TM2, , TM2 Optics Tray Complete
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TM2 optics tray is complete.
Master alignment tray: 0 up/down, 0 left/right
Optics tray: Front 0 up/down, 0 left/right. Middle 0 up/down, 0 left/right. Back 0 up/down, 0 left right. |
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Tuesday, April 21, 2015, 13:01, Grant Minor, ITW, Development, TM2, , TM2 MK4 Optics Tray - banana plug bore modification (on bench)
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The MK4 optics tray prepared for TM2 (as per ITA6082) had an undersized bore for the banana plug, making insertion of the plug extremely difficult /
impossible.
Reference stores parts were collected to check the fit: male plug 3-4/01152 and female jack 1-6/1201. The size of the female jack was |
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Monday, April 27, 2015, 16:12, Keith C Ng, South Hot-Cell, Development, TM2, , Ceramic Standoffs in TM2 source tray steerer assembly
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On drawing ITA6008 for the Encole 0.5" ceramic standoffs there is a note to match pairs of ceramics to within +/-0.001". This step was missed
on the current build of TM2 source tray (ceramics were not measured).
Measured the lengths of the rest of the ceramic standoffs in inventory and they range from 0.5035" to 0.4950" in length. The ceramics |
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Monday, April 27, 2015, 17:09, Grant Minor, ITE, Development, TM2, , TM2 - New Source Tray - Water Block Seal Groove Inspection Report
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The water blocks soldered to the TM2 cooling lines (see Ref. Assy. ITA6144) were inspected.
See attached inspection reports and drawings.
It was found that only 18% of the seal groove diameters and 55% of the depths were in spec. |
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Thursday, April 30, 2015, 08:50, Travis Cave, South Hot-Cell, Standard Operation, TM2, No target, Module move
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| TM#2 with no source tray has been moved from the north east silo to the south hot cell. |
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Friday, May 01, 2015, 08:27, chad fisher, South Hot-Cell, Repair, TM2, , Containment Box Removal
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| Containment box has been removed in preparation for wire replacement. |
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Friday, May 01, 2015, 13:48, David Wang, South Hot-Cell, Standard Operation, TM2, , Target Hall Scheduled Activities April 07 - June 26 2015 update
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Target Hall Scheduled Activities April 07 - June 26 2015 update. 2015-05-01. All TH scheduled jobs are finished on time
this week. |
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Tuesday, May 05, 2015, 10:57, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Wiring
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Old wiring was removed yesterday, new wiring run thru the vacuum chase. Old IMG gauge removed today, new cable trays installed and wires installed into
cable trays. |
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Wednesday, May 06, 2015, 14:30, Travis Cave, South Hot-Cell, Repair, TM2, No target, Wiring of TM#2
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Wires for TM#2 steering elements, and png gauge have been run down to the containment box level. Chad has placed them in the little cable trays. Slack
has been pulled back. and termination of the wire will be done on the 7th of May. A modification was done to the signal line of the png gauge wire ultem
block, as grounded screw was inserted to allow for strain relief so the end would hopefully quit breaking. See attached pictures for the details. |
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