We realigned and balanced Quad 2 after adding weight to the test masses to account for the increase weight of the glass masses. We had to replace the three lower wires on the Main Chain due to stretch. Found the flags for the UI OSEMs need to be installed and run in at least half way to attain proper pitch. We characterized all magnets and checked polarity per E1000617. BOSEMs on the Top mass have been tested for full range function and are set to their mid points. We will start testing the Top Mass BOSEMs on Monday.
 
Notes: 
(1). The blade stop bolts must be run down so the head is below the level of the magnet holder. If not they will interfere with the left and right BOSEM alignment. 
(2). Watch the side magnet and flag, as it is prone to hanging on the BOSEM, causing misalignment. 
(3). Be sure to square and level the Table Cloth before adjusting the BOSEMs. This is especially important for the correct positioning of the left and right BOSEMs. Failure to set the Table Cloth properly can cause the BOSEM to push down on the Top Mass, throwing off the alignment of the other BOSEMs.