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Telescope Maintenance - 2009

VATT-oillines
New oil return lines from the VATT
azimuth bearing, from a view
immediately below the telescope.
David Harvey Photography

The Telescope primary mirror had a hard wash this year by Gray. This was his first solo on the task and the mirror looks great. Gray has now become a licensed protector and keeper of the mirror.

The Dome pulley system for opening and closing the Dome shutter was overhauled. All new pulleys have been installed and the cable system re-tensioned for proper operation. During the pulley work Gray and Franz inspected the shutter rain seal. No damage or replacement was needed.

The Azimuth hydrostatic bearing pump number one had a new pump head installed this year. Towards the end of winter observing pump number one was exhibiting a cavitation problem and so we switched over to pump number two to finish out the season. Pump one has now been put back in to service with no more issues reported. At the same time a complete overhaul of the Azimuth oil bearing return lines was accomplished. It was noted that the original return system began leaking and fracturing this year. Franz specked out and redesigned the oil return system to be more efficient on the delivery of oil and to open up access to the Telescope pier.

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