Gordon crane technician started TH crane trouble shooting this morning. The problem is found that there is no 115VAC power supply to energize  a main coil which is used to switch on 450V AC power supply to crane. He did a test and found  the crane could be operated  by big yellow pedant in control room when he manually gave the coil 115VAC power supply to energize it.. At that moment, the crane is set to big yellow pedant operating mode. But, he can not figure out why there is no 115VAC power to this coil.The wiring  tracking back is not an easy job for him. The troubleshooting is  stopped now. The job will be resumed on next week with more skilled technician involving in from Gordon crane.

Gordon crane technicians continued their troubleshooting on this Tuesday. They found the crane up-limit protection switch which is installed on the same bracket with the the crane down view camera is broken. The spring inside the limit switch  which is used for pushing the action plunge out in the switch lost its function. This up limit switch is the last protection for the crane so it is set as when it is in action the crane main contact coil  which controls crane  power supply will be in open position. The broken switch is replaced by a new one( same type) on this Wednesday. The crane annual inspection has been  finished after the switch replacement. The crane works fine now.

Dave.Morris installed a new battery on crane control PLC board and uploaded the program. Travis, Dan and I tested the crane in local, remote, and test mode. The crane works fine. Also, the TH lock up has been tested. Everything is good.

Dan and I replaced pedal wheels and coils on ITE water flow sensors. It is a shut down job we did every two years. See attachment for detail.

Dan and I replaced pedal wheels and coils on ITW water flow sensors. It is a shut down job we did every two years. See attachment for detail.

TH shut down activities schedule from Feb 23th-March 25th. The schedule will be updated each week. See attachment 1.

Feb-27-2015: Updated the schedule, and uploaded as PDF file. See attachment 2.

Dan and I leak checked ITE primary and secondary vacuum vessels with TM4  in ITE. The leak detector was hooked to ITE TP2 BV2. Leak detector  base leak rate: 0.0xE-09 atm.cc/sec, base pressure: 0.0xE-4 torr. All secondary vacuum vessel seals has been checked(helium spray), and no leak has been found. On the ITE primary vacuum vessel, we  leak checked every thing except the TM4 service cap and water lines inside the TM4. NO leak has been found on ITE primary vessels. The primary vacuum seals on TM4 service cap and TM4 waterlines(helium pressure test) will be checked at CS later.

5 Shielding blocks have been moved to ITE for next week TM1 move and RPG Radon test.

TH shut down jobs are processing as scheduled this week. Discussed with Don, and we think the jobs scheduled in next week should be processed as we planned. See attachments for updated schedule.

I updated the schedule today. See attachment 3, 4 for updating.  2015-Mar-10.

2013-Mar -13, I updated the schedule to show the jobs we finished this week. See attachment 5,6

5 shielding blocks have been transferred from ITE to ITW for next week TM4 move.

This schedule is following Dons schedule on module moves. See attachments for updating.

2015-03-27: Weekly update the schedule. The shut down job is close to the end. See attachment 3, 4.

Chad and I leak checked TM4 HS water line with new Ta#45 target installed at SHC. Leak detector base leak rate 0.0Xe-9 atm.cc/sec, base pressure 0.0Xe-4 torr. Chad sprayed helium twice on each of HS 2 VCR joints.No leak has been found. The joints are leak tight. The helium pressure test  will be done at CS later.

I connected TM4 and CS vacuum system after TM4 move. CS roughing pump was started first this morning. Later, Anders, Bill and I started 3 turbo pumps on TM4 and CS. The pumping down is good so far. The CS vacuum system ion gauges are turned on also.

The helium pressure test on TM4 HS line at conditioning station is done. No leak. I also leak checked all vacuum seals on TM4 service cap. They are all good.

TM4 has been connected at CS which includes high current cables, water lines, EE cable, and Enizel lens cable. The HV cover has been  installed onto the TM4 service cap.The CS water system is started. All water signals are good so far.   Anders will start  HV and heaters conditioning on next Monday.

Updated schedule this morning after last Fridays ISAC facility support group meeting.

Updated schedule on 2015-April -02. See attachments 3,4. The scheduled all shut down jobs are done on time.The TM2 move to SHC will be delayed to May.There will be a new beam running time TH activities schedule (start from April 15) replacing this shut down schedule on next time  weekly update.

TM4 has been disconnected at CS. The CS and TM4 is venting for move. Anders stopped vacuum and water system yesterday.

I replaced ITE tank to module 42 ID X 0.275 o-ring. The o-ring is changed once a year before the first beam time. The flanges was cleaned and the new o-ring was installed. It works fine.

TM4 has been connected in ITE. ITE six turbo-pumps have been started. So far so good.

5 shielding  blocks have been transferred to ITE. The ITE is configured to take proton beam.