Content-Length: 6546 | pFad | https://download.hao.ucar.edu/d5/mlso/log/observer/2004/mlso.2004d008.olog
----------------------------------------------------------------------------- Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Thu Jan 8 17:28:52 GMT 2004 Year: 04 Doy: 008 Observer: stueben WEATHER COMMENT: Thu Jan 8 17:29:42 GMT 2004 Clear, west wind 5-10 mph, temp 38F. Thu Jan 8 17:33:01 GMT 2004 CHIP Start Patrol Thu Jan 8 17:33:19 GMT 2004 PICS Start Patrol Thu Jan 8 18:00:57 GMT 2004 CHIP LSD Thu Jan 8 18:02:42 GMT 2004 CHIP End LSD Thu Jan 8 18:02:48 GMT 2004 CHIP BiasLSD Thu Jan 8 18:02:54 GMT 2004 PICS Flat Thu Jan 8 18:03:38 GMT 2004 CHIP End BiasLSD Thu Jan 8 18:03:45 GMT 2004 CHIP Bias Thu Jan 8 18:04:36 GMT 2004 CHIP End Bias Thu Jan 8 18:05:16 GMT 2004 PICS End Flat Thu Jan 8 18:32:42 GMT 2004 MKIV Start Patrol MKIV COMMENT: Thu Jan 8 18:32:59 GMT 2004 Centered 01 guider. A NEW TAPE HAS BEEN PUT INTO KAIEE DLT DRIVE, Thu Jan 8 18:33:16 GMT 2004 PSPT COMMENT: Thu Jan 8 18:46:05 GMT 2004 Observing. MKIV COMMENT: Thu Jan 8 19:14:08 GMT 2004 Centered 01 guider. Thu Jan 8 19:20:21 GMT 2004 MKIV End Patrol Thu Jan 8 19:20:34 GMT 2004 MKIV Start Cal Thu Jan 8 19:39:23 GMT 2004 MKIV End Cal Thu Jan 8 19:39:37 GMT 2004 MKIV Start Patrol COMMENT: Thu Jan 8 20:04:57 GMT 2004 Dec axis reset. Repointed spar. MKIV COMMENT: Thu Jan 8 20:29:50 GMT 2004 Centered 01 guider. **ECHO PROBLEM**: Thu Jan 8 20:31:04 GMT 2004 Have been experimenting with the RA drive system to find what is slipping. It seems to us that the motor shaft isn't slipping because we can see the driven collar turning when we hear the clunking noise that Eric mentioned. The noise occurs in time with the motor, seems to be one clunk per motor revolution. Going from "stowed" position of -140 to 0.0 in RA it starts clunking maybe 5 revolutions before stopping with the setscrew visible in the access hole - repeatable everytime. Going from 0.0 to -140.0 it likewise clunks in the last few revolutions but the setscrew isn't visible in the access hole after stopping. COMMENT: Thu Jan 8 20:52:42 GMT 2004 Spar bumped ladder and lost guiding, repointed and reset. **ECHO PROBLEM**: Thu Jan 8 21:58:33 GMT 2004 Removed the motor, checked the shaft and setscrew, no signs of slippage between them. I can't find anything else that can be causing the clunk. **ECHO PROBLEM**: Thu Jan 8 22:22:43 GMT 2004 The head is unbalanced, it wants to point straight up when released without any friction on the movement. I can't find anything obviously wrong, the mechanism turns well by hand at slow speed but the teeth are apparently slipping between the Flexspline on the head and the Circular Spline which is fixed with respect to the earth. I'll go ahead and replace the Harmonic Drive with our spare. The slippage isn't constant, it happens at either side of zenith at about 70+ degrees. MKIV COMMENT: Thu Jan 8 23:00:55 GMT 2004 Centered 01 guider. **ECHO PROBLEM**: Thu Jan 8 23:19:59 GMT 2004 Bearing keeper for wave plate generator must be reversed to allow free movement when wave plate generator is bolted in place. Fri Jan 9 02:29:19 GMT 2004 CHIP End Patrol Fri Jan 9 02:29:56 GMT 2004 MKIV End Patrol Fri Jan 9 02:31:46 GMT 2004 PICS End Patrol Fr tarting a new line with ^D Don't use ECHO yet, still have problems. I replaced all the Harmonic Drive parts with new parts but now the motor strain and makes a buzzing sound as it slowly turns the head, too much friction somewhere apparently. The numbers on the new parts don't exactly match the numbers on the old removed parts which are 25-200-651345-2, the new parts have 25-200- (I'm not sure what the rest are but they are different and possibly 24175-010, have to remove one of those parts to be sure). So it looks like it all has to be taken apart again to figure what is wrong. Things seemed fine during installation the Flexspline and Circular spline were more difficult to get together than the old ones but they are new and should be tighter. I put it all back together but turned off echosys and put notes here and there The tools are in the trashcan ready to be used again.an 9 02:41:59 GMT 2004 MkIV 00_01.rawmk4 01_35.rawmk4 19_16.rawmk4 21_02.rawmk4 22_40.rawmk4 00_04.rawmk4 01_38.rawmk4 19_23.rawmk4 21_04.rawmk4 22_43.rawmk4 00_07.rawmk4 01_41.rawmk4 19_29.rawmk4 21_07.rawmk4 22_46.rawmk4 00_10.rawmk4 01_44.rawmk4 19_36.rawmk4 21_10.rawmk4 22_48.rawmk4 00_13.rawmk4 01_47.rawmk4 19_39.rawmk4 21_13.rawmk4 22_51.rawmk4 00_16.rawmk4 01_53.rawmk4 19_42.rawmk4 21_16.rawmk4 22_54.rawmk4 00_19.rawmk4 01_57.rawmk4 19_45.rawmk4 21_19.rawmk4 22_57.rawmk4 00_22.rawmk4 02_00.rawmk4 19_48.rawmk4 21_22.rawmk4 23_00.rawmk4 00_24.rawmk4 02_03.rawmk4 19_51.rawmk4 21_25.rawmk4 23_03.rawmk4 00_27.rawmk4 02_06.rawmk4 19_54.rawmk4 21_31.rawmk4 23_06.rawmk4 00_30.rawmk4 02_09.rawmk4 19_57.rawmk4 21_35.rawmk4 23_09.rawmk4 00_33.rawmk4 02_12.rawmk4 20_00.rawmk4 21_38.rawmk4 23_12.rawmk4 00_36.rawmk4 02_14.rawmk4 20_03.rawmk4 21_41.rawmk4 23_15.rawmk4 00_39.rawmk4 02_17.rawmk4 20_06.rawmk4 21_44.rawmk4 23_18.rawmk4 00_42.rawmk4 02_20.rawmk4 20_09.rawmk4 21_47.rawmk4 23_21.rawmk4 00_45.rawmk4 02_23.rawmk4 20_11.rawmk4 21_50.rawmk4 23_24.rawmk4 00_48.rawmk4 02_26.rawmk4 20_15.rawmk4 21_53.rawmk4 23_27.rawmk4 00_51.rawmk4 18_32.rawmk4 20_17.rawmk4 21_55.rawmk4 23_30.rawmk4 00_54.rawmk4 18_35.rawmk4 20_20.rawmk4 21_58.rawmk4 23_39.rawmk4 00_57.rawmk4 18_38.rawmk4 20_23.rawmk4 22_01.rawmk4 23_43.rawmk4 01_00.rawmk4 18_41.rawmk4 20_26.rawmk4 22_04.rawmk4 23_46.rawmk4 01_03.rawmk4 18_44.rawmk4 20_29.rawmk4 22_07.rawmk4 23_49.rawmk4 01_06.rawmk4 18_47.rawmk4 20_32.rawmk4 22_10.rawmk4 23_52.rawmk4 01_09.rawmk4 18_50.rawmk4 20_35.rawmk4 22_13.rawmk4 23_55.rawmk4 01_12.rawmk4 18_53.rawmk4 20_38.rawmk4 22_16.rawmk4 23_58.rawmk4 01_15.rawmk4 18_56.rawmk4 20_41.rawmk4 22_19.rawmk4 c19_20.rawmk4 01_18.rawmk4 18_59.rawmk4 20_44.rawmk4 22_22.rawmk4 c19_26.rawmk4 01_20.rawmk4 19_02.rawmk4 20_47.rawmk4 22_25.rawmk4 c19_32.rawmk4 01_23.rawmk4 19_05.rawmk4 20_50.rawmk4 22_28.rawmk4 01_26.rawmk4 19_08.rawmk4 20_53.rawmk4 22_31.rawmk4 01_29.rawmk4 19_11.rawmk4 20_56.rawmk4 22_34.rawmk4 01_32.rawmk4 19_14.rawmk4 20_59.rawmk4 22_37.rawmk4Fetched URL: https://download.hao.ucar.edu/d5/mlso/log/observer/2004/mlso.2004d008.olog
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