----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Fri Jun 3 17:50:34 GMT 2011 Year: 11 Doy: 154 Observer: berkey WEATHER COMMENT: Fri Jun 3 17:50:44 GMT 2011 Clear sky, wind=5mph from the ESE, temp=47F. ___end___ NOTE BY DARRYL: Fri Jun 3 17:51:47 GMT 2011 We'll be working on getting the main dome operational today, need to remove rebuild and replace the dome shutter transmission. The bar used for hanging the bottom shutter section needs to be straightened also. No obs from main dome until the shutter is functional again. ___end___ GONG COMMENT BY BEN: Fri Jun 3 18:14:20 GMT 2011 Cleaned Gong window per request from GONG ___end___ Fri Jun 3 20:23:02 GMT 2011: PSPT Abort Patrol Fri Jun 3 20:23:08 GMT 2011: PSPT Abort Patrol Fri Jun 3 20:23:14 GMT 2011: PSPT Abort Patrol Fri Jun 3 20:23:20 GMT 2011: PSPT Abort Patrol NOTE BY BEN: Sat Jun 4 00:24:55 GMT 2011 Today was spent rebuilding and referbishing the main dome shutter drive system after the failure on Wednesday. And inital inspection showed that beyond shearing a pin in the drive "transmission" and bending the bar used to pull up the lower shutterm, we also lost the top right (when looking out the shutter from below) roller. The roller was replaced, the bar was straighened, and the shear pin was replaced. All of these jobs were straight forward (but a little dirty). But the rebuilding of the dome trainmission should only be done with a large (8"+) gear puller, and a heavy vice. We found some damage to the shaft that connects the internal brass gear to the external drive gear that actually touches the shutter track. Where the shear pin passes through the brass gear there was a lot of scoring and marking of the shaft due the some binding between the pin and the shaft. We decided the damage wasn't bad enough to warrent action at this time; but it may become an issue the next time we shear that pin. The shutter was exersized a few times and is ready for normal observations (once these darn clouds clear). ___end___ NOTE BY BEN: Sat Jun 4 00:41:09 GMT 2011 Per request from CSMT, we swapped out a drive from mlsoserver, reseated the RAID card, and rebooted the system. ___end___ Sat Jun 4 01:01:03 GMT 2011 MkIV