National Geographic NG90EQ - Manual (Page 4)

4
ASSEMBLY
1) Carefully remove all parts from the cardboard cartons and lay them on a table or
on the floor in order to take an inventory of all the pieces. Keep your box for storage
or in case you ever need to ship your telescope.
2) Each aluminum tripod leg can extend to almost double its closed length. This
enables the height of the telescope to be adjusted to comfortably suit most users.
Each leg is equipped with a locking knob that can be loosened to perform this
adjustment and then retightened. These locking knobs may already be attached to
the tripod legs, or they may be packaged in a small plastic bag. If they are already
attached you can extend the tripod legs to the desired height and then tighten these
knobs. If they are separately packaged you will have to first insert them into the
threaded holes located on the side of the black collar near the bottom of each closed
tripod leg.
3) The tripod legs now need to be attached to the equatorial mount. The top of each
leg is attached with a tripod bolt passed through the holes at the top of each leg.
Position one of the three arms of the equatorial mount so that it fits between the leg
sections. Insert a bolt through the first tripod section, then through the equatorial
mount arm, and finally through the second leg section (See Fig. 1). You will note that
one of the leg sections has a hexagonal (8-sided) hole. This is the side from which
you insert the bolt. When the bolt comes out the other side, place a round washer
and a then a wing nut over the bolt. Tighten the wing nut firmly. NOTE: Each tripod
leg has a black metal flap about halfway down its length. This is a bracket to
hold the accessory tray and must it be located on the inward-facing side of the
tripod leg.
(Fig. 1)
4) Attach the accessory tray to the tripod by inserting an accessory tray screw
downward through each of the three small holes located near the edge of the
accessory tray. Lift up the black metal accessory tray bracket on one tripod leg so
that it is at a right angle to the leg. Push the accessory tray screw through the
accessory tray and then through the slot in the accessory tray bracket. Place a
washer then a wing nut over the screw and tighten the wing nut finger tight (See Fig.
2). Repeat this procedure for the other two accessory tray brackets (See Fig. 3).