Getting Started; Packing List; How To Assemble Your Telescope - Meade DS-2090AT-TC Instruction Manual

GETTING STARTED

Packing List

Getting the telescope ready for first observations requires only a few minutes. When first open-
ing the packing box, note carefully the parts listed on your giftbox.

How to Assemble Your Telescope

The telescope attaches directly to the tripod. The telescope in this way is mounted in an
"Altazimuth" ("Altitude-Azimuth," or "vertical-horizontal") format. The telescope in this configuration
moves up and down and from side to side.
1.
Fig. 6: Attach cradle to
mounting arm.
2.
3.
4.
Fig. 7: Attach and bal-
ance the optical tube.
5.
6.
Fig. 8a: Attach the
viewfinder bracket to the
7.
refractor optical tube
assembly.
8.
9.
Fig. 8b: Attach the
10. Attach the 90° diagonal prism (refractor models only): Pull out to remove the plastic
viewfinder bracket to the
reflector optical tube
assembly.
Open the tripod: After removing the field tripod from its shipping carton, stand the tripod
vertically, with the tripod feet down and with the tripod still fully collapsed. Gently pull the
legs apart to a fully open position.
Attach the tray to the tripod: Place the tray (19, Fig. 1) over the inner support strut that
contains two bolt holes. Line up the bolts holes on the tray with the bolt holes on the strut.
Slide the two included bolts through the top of bolt holes (18, Fig. 1) and tighten the bolts
with the included wing nuts on the bottom side of the tray (Fig. 3). Tighten to a firm feel only.
Note: The tray does not have to be removed when you collapse the tripod at the
end of a viewing session— just loosen the tray's center lock knob.
Secure the tripod: Turn the center tripod lock knob (Fig. 4) to help stabilize and secure the
tripod.
Caution: Make sure that you loosen the tripod lock knob before collapsing the tripod.
Attach the mounting arm assembly to the tripod base: There are three pads in the tri-
pod base (23, Fig. 1) and three pads on the mounting arm assembly (16, Fig. 1). These pads
allow the mounting arm assembly to move more easily inside the base.
Place the mounting arm assembly into the tripod base and continue to hold onto the arm
assembly. With your other hand, reach underneath the base and thread the mounting lock
knob (26, Fig. 1) through the tripod base and into the mounting arm assembly. Tighten to a
firm feel only; do not overtighten. While observing, you may wish to loosen this knob and
rotate the mounting arm assembly and optical tube (see step #8) on the horizontal axis.
Remove the optical tube assembly from the cradle rings: The optical tube assembly is
shipped with the cradle rings attached. The rings need to be removed before they can be
attached to the mounting arm. Loosen the cradle lock knob (14, Fig. 1) until you can open
the cradle rings. Remove the optical tube assembly (13, Fig. 1) from the cradle rings.
Remove 4 screws from the mounting arm shaft: Locate the four screws on the mount-
ing shaft. Remove the screws using a "+" (Phillips head) screwdriver. Set the screws aside.
Attach the cradle to the mounting arm: Line up the cradle with the mounting arm shaft.
The cradle contains a molded "key" that fits into a slot on the shaft. Line up the key and the
slot, and slide the cradle onto the shaft. This automatically lines up the mating threads on
the cradle with the ones on the shaft. Replace the four screws into the mating threads using
the Phillips head screwdriver (Fig. 6). The key and slot on the shaft set limit stops for the
telescope so that it doesn't strike the base or pass beyond approximately 90° upright when
you use the Autostar handbox.
Attach and balance the optical tube: Replace the optical tube into the cradle ring. Tighten
the cradle ring lock knob so that it holds the optical tube loosely; do not tighten the cradle
ring lock knob at this point. Slide the tube back and forth until you find a position where the
tube remains horizontal (i.e., without slightly tipping up or down). Tighten the cradle rings
lock knob to a firm feel. See Fig. 7. Adjust the length of the tripod legs to a comfortable
viewing height using the leg locks (21, Fig. 1).
Attach the red dot viewfinder: Using a Phillips head screwdriver, thread the two attachment
screws in the bracket into the mating threads located on the optical tube.
dust cover from the eyepiece holder. Slide the tube of the diagonal prism (3, Fig. 1) into the
telescope's eyepiece-holder (2, Fig. 1) and tighten the thumbscrews (to a firm feel only) to
secure the diagonal prism in place.
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