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Message ID: 186     Entry time: Monday, January 25, 2016, 16:54
Author: Isaac Earle 
Category: Maintenance 
Type: Target 1 
Specific: Cooling 
Subject: T1 MRO Work 

The following work was performed at the T1 cooling package and target between January 18-21, 2016:

- Cuno water filters removed (3), and new filters installed
- Target water solenoid, H.E. secondary side solenoid, and Collimator A solenoids removed and replaced with new 24V DC versions
- All thermistors removed and replaced with Type K thermocouples
- All Proteus paddle wheels, o-rings, and paddle wheel pins replaced (5 each)
- Target side #6 Hansen QD fittings replaced because internal seal had failed and fittings were leaking when disconnected (2)
- Profile monitor copper air supply line leak was repaired
- All air QD fittings (6 total) for profile monitor actuation were replaced, the air restricting valves were tuned, and the flexible hose assemblies were checked for gross air leaks
- "T8" temp sensor was found to be located on the CuALCW common return line, not on the Col A supply line as labeled on XTPAGE.  Position was swapped

 

Total dose for this work was 0.17mSv for Isaac Earle, and 0.10mSv for Keith Ng

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