Meade 2080 Instruction Manual page 21

8 inch schmidt-cassegrain; 10 inch schmidt-cassegrain
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-22-
2.
Quick
azimuth
adjustment-by
loosening
the manual
knob described
above.
3.
Bubble
level for rapid
tripod/wedge
leveling.
4.
Etched
latitude
scale for fast adjustment
of the
latitude
angle.
To assemble the Equatorial Wedge follow this procedure (note
that all required wedge hardware and manual knob are shipped
within the wedge carton):
1.
The wedge .consists of two basic parts,
the wedge
body and the tilt-plate,
as shown
in Figs.
7A and
7B.
Attach
the tilt-plate
to the wedge
body by means
of the hex-screws
(Model 2120) or knobs
(Model 2080)
provided.
Two screws
(or knobs), with washers,
should
be used on each side of the wedge
body,
so that a total of 4 screws
(or knobs)
attach
the
tilt plate
to the wedge
body.
2.
Place
the wedge onto the field tripod, with
the
central
threaded
rod of the tripod
fitting
through
the center
hole in the floor of the wedge.
Thread
the 2~"-diameter
manual
knob onto the threaded
rod
of the tripod,
and firmly
tighten
the manual
knob.
3.
Model 2120 owners:
When engaging in long-exposure
astrophotography with your telescope, it is ad-
visable to thread-in the 3 additional socket
screws through the wedge floor and into the top
of the field tripod.
These screws fit through the
oval-shaped slots in the wedge floor; the wedge
must first be turned horizontally on the field
tripod, so that the oval slots lie over any 3 of
the 6 threaded holes on the top surface of.the
tripod head.
Tighten the 3 socket screws with the
hex wrench provided.
Note, however, that for
normal visual observations through the Model 2120,
use .of these socket screws is .not required:
the
manual knob (Step (2) above) is generally sufficient
for rigid attachment of the wedge to the tripod.
The 3 additional
socket
screws are not provided
with the
Model
2080, nor does the Model
2080's wedge have provision
for the attachment
of these screws,
since
firm tightening
of the manual
knob is more than sufficient,
even in the most
demanding
applications.
A fine latitude
adjustment
mechanism
(necessary
only £or
precision
astrophotographic
polar alignment)
is included
in-
one slot on the side of the wedge
for th~ Model
2080; two of
these mechanisms
(one at each side of the wedge)
are provid-
ed with the wedge
for the Model
2120.
Loosen
the hex-screw
at the side of the wedge,
and slide each mechanism
so that
the I-inch long screw
(located just inside
the vertical
wedge
wall) presses
up against
the bottom
surface of the tilt-plate.

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2120

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