Beam dump waterblocks #1 (BD Inlet) and #3 (Upper Pb Inlet) were removed as per the attached procedure on June 1-2. The following was noted:
- The RH pole tool (TRH1244) and water tool wrench (TRH1243) fit easily over all four water block nuts and was easy to use
- The rubber nut thread tool was sometimes difficult to located in the hole on the water block (WB) lower half body, could be done after a few attempts, perhaps tool locating feature can be improved
- The rubber nut thread tool worked well, but a new one should be made as it is starting to degrade and drop pieces of rubber
- The WB upper halves must be lifted carefully with the pole tool supported well to prevent them from swinging in the east direction due to water hose stiffness
- The gasket/retainer assembly on the WB lower half is likely to become dislodged when removing the WB upper half.
- A tool must be developed for picking up the old gasket w/o damaging the WB lower half gland (could simply be a plastic hook attachement)
- A tool must be developed for placing a new gasket on the lower gland (concept in progress by Keith Ng)
- Installation of the upper water blocks (#3 and #4) may require assistance with a hook tool to get the upper WB in the correct orientation. The lower water blocks (#1 and #2) should not
See attached procedure for full details and photographs. More photos and videos of the procedure are stored on Isaac Earle's hard drive. |