Orion SKYQUEST XT12 User Manual download pdf (Page 9)

now be known as the retaining knob. Push the shaft of the

retaining knob through the hole in the side panel opposite

the one the retaining knob is in (Figure 18). Thread the

knob into the altitude bearing as far as it will go. There will

be a gap of about 1/2" between the side panel and the

altitude bearing; this is where the altitude encoder of the

IntelliScope object locator will go.

The CorrecTension system is now installed. If you wish to

remove the optical tube from the base, you will first need to

unthread and remove both the knobs.

Installing the Finder Scope

SkyQuest IntelliScope Dobsonians come with a high-qual

ity, large-aperture 9x50 achromatic crosshair finder scope

(Figure 19a) as standard equipment. This greatly aids in find

ing objects to view in the night sky.

To place the finder scope in the finder scope bracket, first

unthread the two black nylon screws until the ends are flush

with the inside of the bracket. Place the rubber O-ring that

comes on the base of the bracket over the body of the finder

scope until it seats into the slot on the middle of the finder

scope. Slide the eyepiece end (narrow end) of the finder scope

into the bracket as shown while pulling the chrome, spring-

loaded tensioner on the bracket with your fingers (Figure

19b). Push the finder scope through the bracket until the O-

ring seats just inside the front opening of the bracket. Now,

release the tensioner and tighten the two black nylon screws

a couple of turns each to secure the finder scope in place.

Insert the base of the finder scope bracket into the dovetail

holder located adjacent to the telescope's focuser. Lock the

bracket into position by tightening the knurled thumbscrew on

the dovetail holder.

Inserting an Eyepiece

The final step in the assembly process is to insert an eye

piece into the telescope’s focuser. First, take the cover cap off

the focuser drawtube.

Loosen the thumbscrew on the 1.25" eyepiece adapter

(Figure 20). Do not loosen the two thumbscrews on the 2"

eyepiece adapter. Insert the supplied 25mm Sirius Plössl eye

piece, and secure it by retightening the thumbscrew on the

Figure 18. The retaining knob with the nylon spacer is installed

on the side of the base that does not have the IntelliScope port.

Figure 19a. The 9x50 finder scope and bracket.

Tensioner

Eyepiece

Nylon

alignment

thumbscrew (2)

Focus lock ring

Finder scope

Finder scope bracket

Figure 19b. Pull back on the tensioner and slide the finder scope

into its bracket until the O-ring is seated in the bracket’s ring.

O-ring

Figure 20. The 2” focuser of the SkyQuest XT12 IntelliScope.

Focus lock

thumbscrew

Focus

knobs

1.25"

eyepiece

adapter

2" eyepiece adapter

Collimation

screw pair (3)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 19 20

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Orion SKYQUEST XT12 User Manual Page 9

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