<!-- Title: 00:00:03  Fri Jan 11 2008 -->
<!-- Crewchief: 0KC nights -->
<!-- Op1: Jim H days -->
<!-- Op2: Bruce nights -->
<!-- Op3: &nbsp; -->
<!-- Op4: &nbsp; -->
<!-- Op5: &nbsp; -->
<!-- Op6: &nbsp; -->
<!-- Notes: -->
Goodmorning to all. CDF is doing ok.


<!-- Date: Fri Jan 11 00:05:38 2008 -->
I turned down the valve on tank #18 about another 1/4 turn. It is close to off. It went from 41 to 37 psig now. I also turned down the valve on tank #32 to lower the flow about 1/2 of what it was flowing.It is at 39psig now. I will keep a close watch on both and all of the other cryo things.
<!-- Author: KC -->
<!-- Comment: Fri Jan 11 00;11;48 comment by...KC -->
I opened the valve on tank #18 about 1/4 turn because it is now reading 35 psig.


<!-- Comment: Fri Jan 11 00;57;37 comment by...KC -->
I opened the valve about 1/8 turn on tank #18 because the pressure was at 32 psig. Now it is at 36 psig. Tank #32 is at 37 psig.
<!-- Comment: Fri Jan 11 01;03;11 comment by...KC -->
There is no happy medium, this is going to be a see saw night. I will make e-logs if something dragstic happens.
<!-- Comment: Fri Jan 11 05;24;35 comment by...KC -->
The valve to tank #18 is open about 1/4 turn from 100% closed.
<!-- Date: Fri Jan 11 00:15:05 2008 -->
SVX alarms 4 PS-CAEN-OFF is in alarm. The 2nd floor control room said that someone is working on it.
<!-- Author: KC -->




<!-- Date: Fri Jan 11 04:35:10 2008 -->
Racks alarm detector racks west rrsvnwt. Someone reset it.
<!-- Author: KC -->


<!-- Date: Fri Jan 11 04:37:38 2008 -->
PSM alarm svx_nwt_1 went into alarm. 
<!-- Author: KC -->


<!-- Date: Fri Jan 11 04:52:40 2008 -->
SVX and ISL PS-CAEN-OFF are both in alarm.
<!-- Author: KC -->



<!-- Date: Fri Jan 11 05:32:13 2008 -->
Flammable alarm CLC west shows trouble. It cleared with a reset.
<!-- Author: Jim H. -->


<!-- Date: Fri Jan 11 05:53:48 2008 -->
PSM alarm, CASWB_1 lost the +5v digital. I talked to the experts about this and they are investigating.
<!-- Author: Jim H. -->
<!-- Comment: Fri Jan 11 06;09;53 comment by...Jim H. -->
By Roberto's request I reset PS CASWB_1 b0ccal04 this solved the problem. The reset only works on the main rack PS page.


<!-- Date: Fri Jan 11 06:33:26 2008 -->
Jim Humbert and I attempted to power supply in CASWB-1  but  some obstacles were found. The reset button does not work in the main PSM screen where Cryo Techs normally go to reset any given supply. Jim L. was in 2nd Cryo room and I asked him about it and told he was aware of it. The reset only works on the main rack PS page.
<!-- Author: Roberto Davila -->
<!-- Comment: Fri Jan 11 10;01;43 comment by...Jim L -->
OK,--First I didn't know there was a problem.--> Second the way iFIX works it's layers if the were clicking on the BLUE text name (or close to it), IT WILL DO NOTHING! Because there is no scripting tied to the text. IT was tied to the rectangle so I moved it to the grouping. ---> So, IT shuold work now.
<!-- Comment: Fri Jan 11 14;37;47 comment by...Bill Noe -->
Jim Loskot started modifying all the reset buttons to eliminate the problem as decribed above. I finished the West side and did the East side as well.
<!-- Date: Fri Jan 11 06:38:53 2008 -->
The CDF systems checklist and mechanical rooms are normal at this time.
<!-- Author: Jim H. -->


<!-- Date: Fri Jan 11 06:47:01 2008 -->
JL and I are adding a tank18 alarm to the cryo alarm set.
<!-- Author: Bill Noe -->
<!-- Comment: Fri Jan 11 09;43;41 comment by...Jim L -->
Well after rebuiling all the CA blocks for CRYO ALARM SILENCE SUMMATION (so they work right),all the silence visuals work as they are supposed to.
<!-- Date: Fri Jan 11 07:50:48 2008 -->
Control dewar pressure was 6.6-6.7 psig and flow was 17.8 g/s. I opened PVQR 5%. This dropped dewar pressure to 6.4 psig.
<!-- Author: Jim H. -->


<!-- Date: Fri Jan 11 08:46:54 2008 -->
As of now there isn't an estimate of when we can power down the solenoid to exercise EVCP to remove contaminants.
<!-- Author: Jim H. -->




<!-- Date: Fri Jan 11 10:24:10 2008 -->
There was a glitch with cdf_S1 database ---> groups of blocks were not reading (??????) and reloading the poll records didn't help. So, I had to restart iFIX and it all seems OK now.
<!-- Author: Jim L -->


<!-- Date: Fri Jan 11 11:17:00 2008 -->
RACK ALARM---> SVNWT--> power tripped---> Fan failures---> Informed the Scico.
<!-- Author: Jim L -->
<!-- Comment: Fri Jan 11 11;36;48 comment by...Bill Noe -->
Dervin requested the fan failure to be forced good. I did so.


<!-- Date: Fri Jan 11 11:39:59 2008 -->
Air Products is here and will fill tank #32 first then fill tank #18.
<!-- Author: Jim H. -->
<!-- Comment: Fri Jan 11 12;19;23 comment by...Jim H. -->
The top fill valve on tank #32 leaks. When it warms up I'll repair it.
<!-- Date: Fri Jan 11 11:44:59 2008 -->
We tested each of the APACS ACM Failure Alarms. They all worked correctly.
<!-- Author: Del Allspach -->



<!-- Date: Fri Jan 11 12:46:10 2008 -->
I talked to the scico and I am powering down the solenoid to perform the cryo return line procedure.
<!-- Author: Jim H. -->
<!-- Comment: Fri Jan 11 13;14;35 comment by...Jim H. -->
The return line peocedure is complete. I am waiting for the cryo plant to stabilize.


<!-- Comment: Fri Jan 11 13;45;38 comment by...Jim H. -->
Hipot results are +/- 125 MegaOhms. How ever the control dewar pressure is still 6.5 psig it was 6.6 prior to the procedure process.
<!-- Comment: Fri Jan 11 14;02;42 comment by...Jim H., Del and Bob S. -->
We performed the return line procedure again.
<!-- Date: Fri Jan 11 13:41:08 2008 -->
PSM alarm, CONWB_1 it cleared briefly after it alarmed. I talked to the scico about this.
<!-- Author: Jim H. -->




<!-- Date: Fri Jan 11 14:20:51 2008 -->
I changed the set point of the wet engine loop to 39%.  This should lower the shell side pressure of the heat exchanger and the control dewar pressure.
<!-- Author: Sanders -->
<!-- Comment: Fri Jan 11 16;58;19 comment by...Jim H. -->
After further investigation we determined we can start making liquid again. There's no blow by from the engines.
<!-- Date: Fri Jan 11 15:21:12 2008 -->
We closed EVCP and let the control dewr pressure build to 9.8 psig then opened PCQR to 50%. This didn't seem to lower overall dewar pressure. Right now it's 6.3 psig compared to 6.4-6.5 before.
<!-- Author: Jim H.,Bob S. & Del -->



<!-- Date: Fri Jan 11 17:18:30 2008 -->
eARLIER This afternoo we had tried to power the solenoid.  It fast dumped before 100 Amps.  On the interlock dule #7, bits 6 and 7 were tripped.  bit 7 was the first out.
<!-- Author: Sanders -->


<!-- Date: Fri Jan 11 17:30:11 2008 -->
ran tests on quech recovery header (for lack of better name) over on the cryo platform.  shutoff lead flow with manual valves.  closed MV-2005 and MV2007.  There is no flow coming out of PVQR.  There is an unnamed pressure gage on on MV-3668-H; call the gage PI-3668-H.  PVCP at 100 %.  opened PVQR 30% so that PI-3668-H reads upstream pressure of PVCP.  This test was done twice.  First time : PI-3668-H 6.2 psi, PCDEWA : 6.5 psi.  SECOND TIME: PI-3668-H 6.4 psi, PCDEWA 6.5 psi.
<!-- Author: Sanders -->


<!-- Date: Fri Jan 11 17:35:25 2008 -->
On the earlier test, we quickly opened slightly and closed MV-2007 to make sure PI-3668-H was seeing the inlet pressure to PVQR. We do not believe the check valve CV-1610-H seals tight. It has a teflon poppet and no spring.
<!-- Author: Sanders -->


<!-- Date: Fri Jan 11 17:38:11 2008 -->
One more test continueing from above. Close PVCP and compared PI-3668-H and PCDEWA .  they increased  in pressure together eaxctly up to 10 psi.  There is no offset between the two pressure readings.
<!-- Author: Sanders -->


<!-- Date: Fri Jan 11 18:29:53 2008 -->
We are preparing to perform a cold valve change on EVCP.
<!-- Author: D. Allspach -->
<!-- Comment: Fri Jan 11 19;17;54 comment by...Del -->
The spare valve stem was installed without the bullet. There was no obvious problem with the original valve removed. Perhaps a chunk of contamination left the seat with the plume. System is recovering and is looking good so far.


<!-- Date: Fri Jan 11 19:24:21 2008 -->
Before removing EVCP, shim height totals 0.2315 inches.  With valve closed, stem height from top of threaded body extension to bottom of square cut was 0.171 inches.
<!-- Author: Schmitt -->


<!-- Date: Fri Jan 11 19:25:26 2008 -->
pulled EVCD following newly written JHA.  Found bullet still attached to valve.  Insert Assembly Hall EVCD in its  place WITHOUT THE 2" LONG TIP CONTAINING THE BULLET.  Recovering the system.
<!-- Author: Sanders -->


<!-- Date: Fri Jan 11 19:40:34 2008 -->
<pre>Test lead flow without EVCP plug <br>
PVLF  PI257  PCDEWA  FLEADA  FLEADB  PVFLA  PVFLB
--    1.55   4.4     0.15    0.15    20%    13%
3.9   1.55   4.6     0.50    0.50    55%    37%
 
Conclusion is that there is plenty of valve range to run with this control dewar pressure.</pre>
<!-- Author: Schmitt -->


<!-- Date: Fri Jan 11 19:59:17 2008 -->
Powering up the solenoid at this time.
<!-- Author: Bruce -->


<!-- Date: Fri Jan 11 20:00:24 2008 -->
Gas and cryo readings taken I would have writen it the log book earlier but I was busy.
<!-- Author: Bruce -->


<!-- Date: Fri Jan 11 21:20:19 2008 -->
I reviewed the cryo controls and consulted with Bruce. PVQR was in manual we put it back in Auto and enabled Auto Quench recovery. I added an onscreen note for EVCP. I also added one decimal place to the Hi and Lo limits for the tank 18 alarm. I wanted 42 and someone set it for 41.5 but without displaying 1 decimal place it rounded up to make you think it was 42. Otherwise, I was very happy with the operation of the system. Thanks to RLS, Bob, Del, Jim H and Bruce maybe we can run a long time without low FIMF issues.
<!-- Author: Bill Noe -->
<!-- Comment: Fri Jan 11 21;41;13 comment by...Phil Schlabach -->
<pre>My thanks and my hope as well</pre>
<!-- Date: Fri Jan 11 21:31:53 2008 -->
Started mixing argon/ethane gas into tank #2 at this time.
<!-- Author: Bruce -->