power lead ripples increased over last couple of days. They are quickly 
dieing out now and the temps are startint to increase. PL flow is down to 
<180mm. I will power cycle HIC 142.

Power cycled HIC 142 with solenoid power at 400 amps. Flows > 240mm and 
temps have dropped.

Solenoid quenched on power lead temp. I ran down and managed to recover it 
with minimal temp rise in the solenoid. Coil temps are falling, liquid is 
building. No flow to the power leads yet.

Started flow to power leads.
TIC121 into auto mode

should be ready to run.

Power supply was ramped down yesterday as there are no users.
The Sundance server was rebooted yesterday. This morning the displays were 
all white screened, so I restarted the session. The computer was running 
very slow and I could not get the strip tool to run at all. I rebooted the 
local PC and everything seems to be okay now.
While rebooting the computer had an error message that the hard drive may 
have some bad sectors. Did a scan disk and it seems okay, but the hard 
drive might be dying in the local machine.

I was phoned at about 9:30 tonight with a solenoid alarm. After looking at 
the display I found the system to be tripped off. When I came in I found 
the compressor off and the solenoid quenched. There was no real indication 
of the problem other than a cold box fault. I restarted the compressor and 
started flow to the cold box.
Just a reminder: This elog is now at: https://elog.triumf.ca/M9sol

Solenoid temps were: C1 & C12 about 30K. C6 &C7 about 11K. Started flow to 
solenoid in parallel cold return. Jumpered out the vacuum gauge for the 
solenoid vacuum.

Switching to series mode. Jumper on vacuum gauge removed.

Two power bumps tonight. Everything tripped of. Restarted cooling water 
pump, diff. pump under solenoid etc. Computer stayed on! Starting 
compressor.

c1 28, c12 29, c6 11.6, c7 12.5 TI121 22.5

cooling rates for the solenoid are good. In parallel cold return.

Changed to series mode.

Over the last couple of days we replaced the gate on the M9BV5 valve. The 
old one had worn the teflon sliders on the sides. Metal shavings on bottom 
of body. Found a replacement with metal rollers, rather than slides. 
Pumped out downstream of gate valve. It's down to 5E-7 (moved the cable on 
the ion gauge so it now reads.)
Started cooling down the solenoid. Charging through the adsorber. LN2 fill 
piping broke. Repaired by resoldering. 
Ion gauge on solenoid seems to have burnt out last night.

The solenoid has been re-started as of August 19. It was cooled down and 
energized over the weekend. Sunday night at 9:30 it tripped due to 
negative power lead going above it's set point. The system stopped flow to 
the solenoid, but kept the compressor and cold box running. While starting 
flow to the solenoid, we got a high pressure trip. I came in and restarted 
the compressor, after Curtis located and reset the over pressure 
interlock. The solenoid is cold and energized as of 3:30 pm yesterday. It 
is still stable as of now.

The power lead flows had dropped to 210 mm this morning. I increased HIC142 
from 0.8 to 0.83. The flows are back to <250 mm and the temps are back to 
LHe in-10.8, PL-Pos-11.1, PL-Neg-8.9

Lhe ripple has started. 10.9-11.4K PL-Pos also has a smaller ripple. Both 
flows down to 230mm. Cycled HIC 142 and the ripple disappeared. 
Put TIC121 into auto mode.

The LHe in and PL-neg temps have been building up a ripple over the last 
few days. Curtis cycled HIC142 Friday evening at about 5:00. I just had 
the Main control room operator (Peter) cycle them again. The ripples died 
right out. 
Originally the ripple was 10.8-11.4K on the LHe-in and 8.9-9.2K on the PL-
Neg. They are now steady at 10.7K and 8.9K.

started flow to the power leads at 11:30. Cold and stable at 1:00am. 
Energized solenoid at 1:30.