The containment box has been reinstalled onto TM2 in prepatation for testing in the conditioning station.

TM2 was connected yesterday by Frank and Anders. The West side panel with IG1S on Exit Module 2 was replaced with a new SST panel with 1 CF flange only (dwg). Link to check list on DocuShare.

TM2 has been moved to CS. All turbo-pumps have been started. The pumping down is good so far.  I connected the leak detector to service cap, and finished the leak check today.  The LD base LR:0.0Xe-9atm.cc/sec. 80psi helium were applied to coil1, coil 2. HS and window circuits, each for 2minutes. No any response has been found on LD. So all water lines are leak tight now. I also sprayed   helium to top service cap checking all air to   vacuum seals. They are all good either. But, The new installed PGN1 does not work. Other thing need to mention is The TP2 is running at 2.45A which is 1A higher comparing to TP1. It need to be monitored to see if we have to replace it or not. The high current cables and water lines will be connected tomorrow morning.

During the TM2 HV test at CS, It failed. In order to confirm there is no any water leak inside the module after the heaters and beam extraction test, I disconnected all the water lines on the TM2, and purged the water lines with pressure air. Leak detector was reconnected back to the TM2 service cap, and all water lines are pressurized with 80psi helium again each for 2 minutes.No any leak had been found during the test. All the water lines are still perfectly sealed. Also, I checked all the vacuum to air seals on the top of the module.They are good either.  Anders used the RGA  tracking the helium during the test. No leak.

The pumping down on TM2 at CS was good overnight. However, the back up line pressure is still too high for LD to get to 0.0-E-9atm.cc/sec . It only could get to 1.2xE-7 atm.cc/sec. It is not enough for a good leak check . I dont want to have any ambiguous situation on this" D" line leak check. So,I am going to reconfigure the leak detector to the spare KF25 pot on the TM2 service cap. All pumps are stopped . The CS and TM2 will be vented soon. After that, a manual valve will be installed on that spare KF25 pot for future helium pressure check at CS. Then, The TM2 and CS will be pumped down again.

 TM2 at SMP under vacuum. TM4 at silo.  Frank and I did the tests. Everything is fine on TM4 check.  On TM2,  all mega test at 500V are around 200K ohms which is so abnormal. We will move TM2 to TCS and  start investigation there.

All vacuum pumps have been started. Air ballast 50seconds on roughing pump. Everything is good  so far.

Roughing down overnight. Turbo pumps are started this morning. Everything looks good so far.

I started all turbo pumps.

TCS is under roughing now.

TCS is under roughing now.

2016-04-14, Started TCS and TM2 turbo-pumps yesterday afternoon. Overnight pumping down is fine.

TM2 and TCS vacuum system has been connected. I started all turbo pumps. Everything is good so far.

I switched off TM2 and TCS vacuum pumps. The TCS and TM2 will be under vacuum without pumping.

I stopped TM2 and TCS vacuum pumps. It will be vented and disconnected this afternoon for tomorrow  moving.   

The TCS and TM2 are still under vacuum without venting

Tm2 and itw entrance module have been disconnected in ITW. I will attach disconnection checklist later.

Turbo-pumps are started . The pumping down is good so far.

I did an electrical check on TM2 with ZrC #7 on it. The EE is short to 60KV bias. See attachment

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.

Fiberglass that fell out yesterday was put back in place (as well as possible).

Cleaning took place this morning with excellent results. Cleaning was performed with red scotch brite on the cleaning tool, air pressure at 40 psi while running, with one 60 second cycle. Three blocks (EE, HS and Window) needed a second pass to remove the indium.

Polishing commenced with 2000 grit wet sand paper. Paper was wet with isopropynol. 60 second cycles for double seal blocks, 30 second for singles. The 2000 grit pass was completed.

Polishing will finish tomorrow morning as well as removal of optics tray from source tray in preparartion for insertion of the source tray into the module tomorrow afternoon or Friday morning.

First picture is Tube heater Circuit D block before cleaning and second picture is after cleaning.