Orion SKYQUEST XTG User Manual download pdf (Page 8)

Connecting the Optical Tube to the

Dobsonian Base

The telescope is now assembled and ready to be placed into

the Dobsonian base. The left altitude hub on the optical tube

has a dovetail slot that slides into the altitude axis trunnion on

the inside of the left side panel (Figure 17). We recommend

orienting the trunnion such that the threaded hole for the tube

securing knob is facing upward. Then the telescope tube can

be cradled horizontally and just lowered into the base by gen-

tly sliding tube’s dovetail altitude hub into the mating recep-

tacle of the altitude trunnion on the base (Figure 18). (Get

help lifting the tube in place if it is too heavy or unwieldy for

you.) The tube should now be resting in a balanced, horizon-

tal position in the base. Then just insert and tighten the tube

connecting knob to secure the tube in place (Figure 19).

Accessory Installation

Now that the base is assembled and the optical tube installed

all that remains is to attach the EZ Finder II reflex sight and

the eyepiece. These accessories can be found in a small box

within the optical tube assembly box.

EZ Finder II

Using the included dovetail mounting bracket, the EZ Finder

II will slip neatly into the dovetail base preinstalled on your

SkyQuest optical tube. The EZ Finder II arrives pre-installed

in the mounting bracket. Just simply slide the dovetail mount-

ing bracket into the telescope’s dovetail mounting base and

tighten the thumbscrew on the base to secure the mounting

bracket.

Operating the EZ Finder II

The EZ Finder II works by projecting a tiny red dot (it is not a

laser beam) onto a lens mounted in the front of the unit. When

you look through the EZ Finder II, the red dot will appear to

float in space, helping you to pinpoint your target object. The

red dot is produced by a light-emitting diode (LED) near the

rear of the sight. A 3-volt lithium battery provides the power

for the diode. Turn the power knob (see Figure 20) clockwise

until you hear the “click” indicating that power has been turned

on. Look through the back of the reflex sight with both eyes

open to see the red dot. Position your eye at a comfortable

distance from the back of the sight. In daylight you may need

to cover the front of the sight with your hand to be able to see

Figure 17. The cast-metal dovetail trunnion on the left side panel

of the base mates with the left side bearing of the telescope tube.

Before mounting the tube on the base, turn the trunnion by hand so

that the hole for the tube connecting knob is facing up.

Threaded

hole for tube

connecting knob

Figure 19. Secure the tube to the base with the tube connecting

knob.

Figure 18. Hold the telescope tube as shown, with one hand on

the rear end ring and the other cradling underneath the tube, gently

lower the scope so the dovetail side bearing on the tube seats in the

metal trunnion on the left side panel.

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 36 37

Comments to this Manuals

No comments

Orion SKYQUEST XTG User Manual Page 8

Comments to this Manuals

Related products and manuals for Optical devices Orion SKYQUEST XTG