Steve for Nancy,
Seismometer interface box ac power was turned off, Guralps disconnected and moved. Ranger locked, moved and released. Nancy will describe the rest soon.
The flattened lead balls were checked for their heights by the calliper, and were all in the range of 9.50 to 9.70 mm.
The rechecking was done by using these balls between two aluminium plates and checking their levelling. When confirmed this, we proceeded to install the balls(no more balls :P ) in their place.
The Guralps were switched off by switching off the power supply to them. The ranger mass was clamped in order to be able to move it. This can be undone by rotating the transport screw counter-clockwise.
We installed the flattened lead ballsin the space made for them. The granite was then placed on it with the help of many other people in the lab. It was lowered by hanging it on two straps held by people , and then placed in the space marked for it.
Did we then turn on the seismometers? Did we release the locking screw on the Ranger? What happened to Bat-Boy??? Since they make a good mystery I will choose to leave them out of my elog entry.