First the hoist is raised to the base of the telescope to position the
cradle which the mirror and its mounting frame will sit in once they are
removed.
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Here is a view of the underside of the mirror's mounting frame. The array
of weights is designed to keep the mirror focussed even when the telescope
is swung way over on its side.
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With the cradle in place, the retaining bolts are undone and the mirror and
frame are lowered carefully away from the telescope.
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The mirror is now free of its mounting frame, and can now be lifted off with
the help of the crane. It weighs around 350kg so it's a little difficult to
manage, to say the least.
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Easy... easy...
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The mirror, with a protective metal cover, is now boxed up ready for
shipping.
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Here is a view of the mirror's mounting frame, showing the supports which
hold it in place normally.
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The lifting gear is all bolted to the top of the shipping box.
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The shipping box is now wheeled out the door...
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and onto the truck ready for the drive up to Canberra.
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