Lots of comm errors on this zone and can't reboot the IOCNL2 because 1L11 is running RF and on iocnl2. Will reboot IOCNL2 when beam is off as not to cause delay in beam (takes about half hour to hour to recover RF in 1L11-1L13 and 1L13 is GSET O for low energy run and it can wait, right ?
The following cavity histories have been updated:
2L20-5
Username: kerns
Date/Time: 03-30-26_12:42:33
RF Status: Good
Tuner Status: Good
Comment: Recovered RF to 7.4 Mv/m and optimized. GLDER now approx. 46 ppm and great.
Special Instructions:
Maintenance Tag: Component: Other
The following box supplies were CYCLED by version 2-16 of the Box Supply Cycling Script:
ARC1A Ramp Rate = 7.400 A/s
ARC3A Ramp Rate = 4.842 A/s
ARC5A Ramp Rate = 9.280 A/s
ARC7A Ramp Rate = 9.277 A/s
ARC9A Ramp Rate = 9.300 A/s
RSEP9A Ramp Rate = 8.813 A/s
To confirm, the components of the push-bar mechanism were never removed from the door with exception of the protective cover, or disconnected from the PSS. The loose push-bar mechanism was reattached one screw at a time using Loctite. The door's frame switch actuator lever was extended with the heat shrink tubing (a standard repair) to eliminate nuisance trips. Post repair, the operation was verified using local feedback LEDs installed on both sides of the door, providing indication of closure of both push-bar and frame latch switches.
Tried HV twice and it trip with KMAI initially with only 11 ma display. Second time trying HV, zone went into HV and stayed up running with ~11 ma KMAI just as it was running at since last Wednesday. This trip is only happening when zone taken out of HV and put back in ! Kind of looks like instrumentation but we will write it up for a look on maintenance day to look at the mod anode and connections.
Dropping HV for zone with ModAnode Current fault after putting back into HV at 1036 today. It has .8kv KMAS and the KMAI looks like it is only jumping at HV startup from 1.1 ma to 1.23 ma. Might possible be a Mod Anode board that needs replaced. Filament board was replaced last Wednesday but should have been the Mod Anode board possibly. Need to get S. Holben to help out since this looks like an instrumentation problem or fast spike in current that is happening.
| Shift | Swing |
|---|---|
| CEBAF Program | |
| MCC Crew Chief | Forman |
| MCC Operators | Schaumloffel, Yoon |
| Program Deputy | Malace |
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