TELESCOPE OPERATIONS

SHUTDOWN

General

This procedure covers the basic steps for shutting down the 43Meter telescope drives in preparation for stowing at survival position, maintenance, or as directed.

Warning

Ensure personal safety through effective lockout/tagout procedures. Ensure the antenna is cleared for movement before releasing hydraulic drive brakes.

Info

For the purpose of this procedure, the terms Stow and Survival are synonomous.

Stow/Survival position for the 140 Foot antenna is: 0.0 Degs Hour angle / 38.438 Degs Declination

Add an entry to the 43meter log (within the RSCREEN GUI using the DISPATCH/TECH menu options) anytime observing is interrupted.

Stowing Antenna for Shutdown

STEP	ACTION
1	Press the Halt button on the main console window. Skip if you already have manual control.
2	Press the Stow button. The antenna will move to stow position (00 Hour angle/38.54 Degs Dec) then set the gear reducer brakes.
3	Press the Idle button if you need to set the stow brakes. Also sets the hydraulic system to bleed.
NOTE	The antenna is now stowed.
4	If observing was in progress, add a log entry using the DISPATCH/TECH menu options of RSCREEN noting the time the shutdown occurred as well as when observing resumed. Note in OpsLog as well.

-- DavidRose - 12 Feb 2008

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Revision r1.6 - 12 Feb 2008 - 18:39 GMT - DavidRose Parents: WebHome > TelescopeOperations	Content copyright © 1999-2007 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.


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