The crane pendant for the main hoist was upgraded to a FLEX EX2 style pendant by Canco Cranes. The installation work was performed by Matt at Canco, supervised by Tom Kauss, David Wang, and Adam Newsome. Installation work was performed in two phases since the initial installation did not provide adequate range and an antenna issue needed to be resolved (I2021-01-14-1, and I2021-02-16-1).

Items installed include:

• New pendant
• New antennae
• New receiver box, mounted on main crane control panel in the crane control room

The old receiver control box will be kept for some time in case there is a need to revert to the previous system for some reason.

The new system was tested by David Wang - including using the pendant at the far end of the target hall where range was previously an issue. Everything is reported to be in working condition. Remote mode is functioning as expected.

Vacuum cleaned ITW and ITE station. 

 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.

Old resin can:  0.5 meter 360 degree rotation above silo area, 350u sv/hr.   On contact  3.0 to 3.5 msv/hr.  It was replaced during 2017 winter shut down, and stored in silo since then.

2a window RH clamp: 0.5 meter, 160 usv/hr.  On contact, hottest spot 3.5msv/hr, general,1.8 msv/hr. 

 Both of them were raise out of storage silo with TH crane. Pole monitor was used for field check.

TM4 is moved from TCS to SW silo. The moving is smooth.

High active water are purged to holding tank at B2  level. There should be around 48 gallons are purged out of system. No purging on dump circuits on both ITW/ ITE.

Ramp up ITW bias to 57KV. no spark. 200uA leaking current at 57KV. The test is done without target module in station.   ITW water circuits are looped in pit.  EE , EL are switched off during the test. 

Cables were disconnected for steers in containment box. The Megga measurement (500V) result from the top of the module:

Left to right: OL, left to top OL,  left to bottom OL, right to top OL, right to bottom OL,  Top to bottom OL. And all of them to ground are OL.  No short on cables from module top to steers itself. The short should be inside the steers. It will be confirmed with directly test on steers.  

ITE annual HV test is done. No module in station. The bias power supply has been ramped up to 49KV on control page. We still have voltage limit issue on this PS at 48KV so it only can go to 47.7 KV on PS panel. No major spark during test.. The test result is same as last year test which was did in March 2020. 

 TM#2 with Nb#9 was moved from ITW to SHC and then with no target it was moved from the SHC to the SMP.

ITW primary and secondary vacuum vessel leak check are done. There is a 5XE-8 atm.cc/sec leak on Exit service cap NW side square panel.  The leak is small. And, it is close to ITW TP3 so it is not affect ion beam line vacuum during operation. We will replace the seal on the panel later.   The rest leak check on air to vacuum seals are good. TM2 water lines are pressurized with 70 psi helium. We did it  3 hours after water lines are purged. No leak was showed during the check.

2021-02-24th: The o-ring on exit 1 NW side square panel is replaced by David Wang and Frank Song. 

 TM#4 with Ta#61 has been moved from the east target station to the south hot cell.

Frank and I finished ITE and TM4 primary and secondary  vacuum vessel  leak check.　ＬＤ　ｂｅａｓｅ　ｌｅａｋ　ｒａｔｅ　０.０ｘ－９ａｔｍ．ｃｃ／ｓｅｃ．　Ｎｏ　ｌｅａｋ　ｈａｓ　ｂｅｅｎ　ｆｏｕｎｄ．Ａｌｓｏ，　Ａｌｌ　ＴＭ４　ｗａｔｅｒ　ｌｉｎｅｓ　　ｈａｖｅ　ｂｅｅｎ　ｐｒｅｓｓｕｒｉｚｅｄ　ｗｉｔｈ　７０ｐｓｉ　ｈｅｌｉｕｍ　ｆｒｏ　３　ｍｉｎｕｔｅｓ　ｏｎ　ｅａｃｈ　ｃｉｒｃｕｉｔ．　Ａｌｌ　ｗａｔｅｒ　ｌｉｎｅｓ　ｉｎ　ＴＭ４　ａｒｅ　ｇｏｏｄ．　Ｎｏ　ｒｅｓｏｐｎｅ　ｏｎ　ＬＤ　ｄｕｒｉｎｇ　ｔｅｓｔ．　

TM3 was remotely moved from the South Hot Cell to the conditioning station. No containment box.

24/Noc/2020

USB was discovered to be in the reverse direction and will need to be change around to become operational

01/Dec/2020

USB was pulled from conduit

While attempting to re-pull the USB in the correction direction, the ethernet cable was damaged and need to be replaced,

(thanks to the Hubert's team for the wire help) 

It was decided that it was too problematic to re-pull the wires with all other wires in the way. Therefore all the wires were removed from the operator control panel, and pulled so that the USB, USB power cord, and ethernet could be re-pulled all together.

However, even once all the wires were re-pulled and reconnected it was discovered that the USB had become damaged, and was removed again.

23/Dec/2020

- A new conduit was added through to the NHC, for only the USB

- USB was fed through, reconnected, and tested

- Putty will need to be added around the conduit to ensure a good seal into NHC

The Target Hall Crane has been shut down in preparation for the power outage tomorrow (Dec 22). Power will be restored on Dec 23.

Dec 23 update: power has been restored. The crane appears to be in working condition as there is no fault indicator on the PLC.

TM3 was remotely moved from the conditioning station to the South Hot Cell. No containment box.

TM3 has been moved from the South Hot Cell to the Conditioning Station. No containment box.

TM3 has been moved from the Silo to the South Hot Cell.

TM2 has been connected to ITW. Turbo pumps are stared. ITW pumping down is fine so far.