Reports until 18:11, Sunday 11 June 2023
H1 PEM
anthony.sanchez@LIGO.ORG - posted 18:11, Sunday 11 June 2023 - last comment - 18:06, Wednesday 14 June 2023(70347)
Monthly Dust Monitor Vacuum Pump Check Famis

Famis Task: 23750

I wanted to just swap the pumps with the one below the table but couldn't reach the pump rebuild log https://dcc.ligo.org/LIGO-Q2200010 because i didn't have any internet at the end stations and couldn't determine if the spares had been rebuilt already or not.

EX
Dust pump number 2950 Not running and Unplugged.
I checked the Log and noticed that pump 2950 only lasted 2 months. But the pump below the table was newly built around the same time.
So I'm going to Leave the Famis Task open until I can swap out the pump.

 

EY
Dust pump was Running pressure was 19.5 inHg.
No temps over 151F .

Corner Station
Dust pump number 1194 Power not switched on.
Spare 1119313238 has also been rebuilt and is ready to be swapped out.

I will try to swap these out Tomorrow or Tuesday.

 

Comments related to this report
anthony.sanchez@LIGO.ORG - 18:06, Wednesday 14 June 2023 (70466)
Link 

UPDATE!!

CS Dust pump
Pump Power not switched on. I spoke to TJ about it. It's on a breaker and I beleive the breaker tripped. I had to turn it off before I could turn it back on.
When I turned it on It sputtered to live and puffed a rather large puff of dust out. So much so it startled our Surf student Rachel and I. It was getting vacuum pressure around -14 inHg. 
So I swapped it out for 3238. The Brass threaded fitting below the 4 way splitter that the gauge is afixed to in the top of the housing is stuck and I couldn't remove it for the swap. I ended up finding a good replacemet for the threaded brass fitting to go into the next pump i swapped it for. 
The new pump # ending in 3238 is running great and has more than enough vacuum pressure, I set the pressure to be at -19inHg.

The pump that was removed was placed in the OSB receiving room to be rebuilt or otherwise just cleaned up. 


EX
Dust pump
Pump number ending in 2950 Not running Unplugged. 
I plugged it in and noticed that it was not getting very past -9 inHg and sounded unwell.
I came back the next day to find that the pressure was still too low though it had creeped up to -13inHg. I then swapped out the pump with the one under the table Pump # ending in 2109which was newly rebuilt. This too was still too low of a pressure around -14.5inHg. I checked the filters for  tightness on the front of the pump housing. I then jiggled the vacuum hose a little and saw a the pressure go back up. So I checked the hose fitting and noticed that the hose was affixed to a plastic fitting that has threads going into to the brass 4 way fitting without any plumbers tape. I then put some plumbers tape on it, put it back together and fired her back up. I still didn't see the pressure we desired it's only at -17inHg. I went back to day to check on it and it's still at 17inHg. There is not any more room for adjustment on the vacuum pressure adjuster. The old pump is in the OSB recieving room.

I will try to open up those pumps next week.