ORION TELESCOPES & BINOCULARS SkyView Deluxe 4.5 EQ 9402 Instruction Manual

IN 091 Rev. B 0199

Providing Exceptional Consumer Optical Products Since 1975

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INSTRUCTION MANUAL

Orion

®

SkyView

™

Deluxe 4.5" EQ

#9402 Equatorial Reflecting Telescope

2

Figure 1. SkyView Deluxe 4.5" EQ Parts Diagram

Finder scope

Finder scope bracket
Secondary mirror

and three-vane spider

Focus knob
Tube ring mounting bolt
Declination slow-motion control

Declination setting circle
Declination lock lever (not pictured)

Latitude lock lever (not pictured)
Counterweight shaft
Counterweight
Counterweight lock knob

Retaining washer and knob
Azimuth adjustment knobs (2)

Accessory tray bracket
Accessory tray

Finder scope alignment screws (6)

Eyepiece

Focuser

Tube rings

Tube ring clamps

Primary mirror cell

Collimation screws

(3) (not shown)

Right ascension lock lever

Right ascension setting circle

Polar axis finder scope

Right ascension

slow-motion control

Latitude adjustment knob

Latitude Scale

Tripod leg attachment bolt

Tripod leg

Leg lock bolt

Rubber foot

3

1. Parts List

Qty. Description
1 Optical tube assembly
1 German-type equatorial mount
1 Polar axis finder scope
2 Slow-motion control cables
2 Optical tube mounting rings
1 6x30 crosshair finder scope
1 Dual-ring finder scope bracket
1 Counterweight
1 Counterweight shaft
1 25mm (36x) Plössl eyepiece (1.25")
1 9mm (100x) Plössl eyepiece (1.25")
1 Moon filter
3 Tripod legs
1 Tripod accessory tray
3 Accessory tray screws and wing nuts
1 Optical tube dust cap

C

ongratulations on your purchase of a quality Orion telescope.

Your new SkyView Deluxe 4.5" EQ is
designed for high-resolution viewing of astronomical objects. With its precision optics and equatorial
mount, you’ll be able to locate and enjoy hundreds of fascinating celestial denizens, including the plan­ets, Moon, and a variety of deep-sky galaxies, nebulas, and star clusters.

If you have never owned a telescope before, we would like to welcome you to amateur astronomy. Take
some time to familiarize yourself with the night sky. Learn to recognize the patterns of stars in the major
constellations. With a little practice, a little patience, and a reasonably dark sky away from city lights,
you’ll find your telescope to be a never-ending source of wonder, exploration, and relaxation.

These instructions will help you set up, properly use and care for your telescope. Please read them over
thoroughly before getting started.

Table of Contents

1. Parts List ............................................................................................................................... 3

2. Assembly .............................................................................................................................. 4

3. Balancing The Telescope .....................................................................................................4

4. Aligning the Finder Scope .................................................................................................... 5

5. Setting up and Using the Equatorial Mount .......................................................................... 5

6. Collimating the Optics (Aligning the Mirrors) ........................................................................ 7

7. Using Your Telescope—Astronomical Observing ................................................................. 8

8. Care and Maintenance ........................................................................................................10

9. Specifications ....................................................................................................................... 11

WARNING:

Never look directly at the
Sun through your telescope or its finder
scope—even for an instant—without
a professionally made solar filter that
completely covers the front of the
instrument, or permanent eye damage
could result. Be sure to also cover
the front of the finder scope with aluminum
foil or another opaque material to prevent
physical damage to the internal
components of the scope itself as well as to
your eye. Young children should use this
telescope only with adult supervision.

4

2. Assembly

Carefully open all of the boxes in the shipping container. Make
sure all the parts listed in section 1 are present. Save the boxes
and packaging material. In the unlikely event that you need to
return the telescope, you must use the original packaging.

Assembling the telescope for the first time should take about 20
minutes. No tools are needed. All bolts should be tightened
securely to eliminate flexing and wobbling, but only tighten them
“finger tight.” Be careful not to over-tighten so as not to strip the
threads. Refer to Figure 1 during the assembly process.

During assembly (and anytime, for that matter), DO NOT
touch the surfaces of the telescope mirrors or the lenses of
the finder scopes or eyepieces with your fingers. The optical
surfaces have delicate coatings on them that can easily be
damaged if touched inappropriately. NEVER remove any lens
assembly from its housing for any reason, or the product war­ranty and return policy will be voided.

1. Lay the equatorial mount on its side. Attach the tripod legs
one at a time to the base of the mount by sliding the tripod
leg attachment bolt into the slot in the mount and lightly
tightening the knob finger-tight. Note that the hinged
accessory tray bracket on each leg should face inward.

2. Tighten the leg lock bolts at the base of the legs. For now,
keep the legs at their shortest (fully retracted) length; you
can extend them to a more desirable length later, after the
scope is completely assembled.

3. With the tripod legs now attached to the equatorial mount,
stand the tripod upright (be careful!) and spread the legs
apart enough to attach the accessory tray to the three
hinged tray brackets on the legs. The brackets should be
positioned underneath the tray. Use the three small
accessory tray screws and wing nuts provided. Do not
tighten the wing nuts yet.

4. Now, with the accessory tray attached loosely, spread the
tripod legs apart as far as they will go, until the accessory
tray brackets are taut. Then tighten the wing nuts.

5. Next, tighten the tripod leg attachment bolts at the base of
the equatorial mount, so the legs are securely fastened.

6. Remove the retaining knob and washers from the bottom
end of the counterweight shaft. Slide the counterweight
onto the shaft, then replace the washers and the retaining
knob. The washers and knob will prevent the counter­weight from slipping off the shaft and possibly onto your
foot if the counterweight lock knob should come loose!

7. At the top end of the counterweight shaft, note the knurled
shaft collar. Rotate it so as much of the threaded end of the
shaft as possible is visible. Now, with the counterweight
lock knob loose, grip the counterweight with one hand and
thread the shaft into the equatorial mount (at the base of
the declination axis) with the other hand. When it is thread­ed as far in as it will go, twist the shaft collar clockwise to
secure the shaft. Position the counterweight about halfway
up the shaft and tighten the counterweight lock knob.

8. Orient the equatorial mount as it appears in Figure 1, at a

latitude of about 40°, i.e., so the pointer next to the gold­colored latitude scale is pointing to the hash mark at “40.”
To do this, loosen the latitude lock lever (on the side of the
mount opposite the gold latitude scale), and turn the lati­tude adjustment knob until the pointer and the “40” line up.
Then tighten the latitude lock lever. Also tighten the decli­nation (Dec.) and right ascension (R.A.) lock levers.

9. Remove the caps from the narrow end of the polar scope
and the polar scope port in the equatorial mount. Insert
the narrow end of the polar scope into the open port.
While gripping the wide end of the polar scope (but not the
eyepiece at the very end), thread it clockwise into the port
until it is secure.

10.Attach the two tube rings to the equatorial head, using the
captive tube ring bolts preinstalled in the equatorial head.
Open the tube rings.

11. Lay the telescope optical tube in the felt-lined tube rings
at about the midpoint of the tube’s length. Rotate the tube
in the rings so that the focuser is angled somewhere
between horizontal and straight up. Close the rings over
the tube and tighten the knurled ring clamps finger-tight to
secure the telescope in position.

12. Now attach the two slow-motion cables to the R.A. and
Dec. worm gear shafts of the equatorial mount by posi­tioning the setscrew on the end of the cable over the
indented slot on the worm gear shaft, then tightening the
setscrew. The cables can be attached to either end of the
shafts, whichever is most convenient for you. But we rec­ommend the Dec. cable extend toward the front end of the
telescope (as in the picture), since that’s where you’ll be
standing.

13.To install the finder scope bracket on the optical tube
(adjacent to the focuser), first remove the round nuts on
the two mounting screws. Do not loosen the small hex
nuts on the mounting screws. Place the finder scope
bracket over the two screws. Replace the round nuts and
tighten finger-tight.

14. Place the finder scope in the finder bracket by first back­ing off all six alignment screws until the screw tips are
flush with the inside diameter of the finder bracket. Slide
the finder scope through the finder bracket rings with the
larger (objective) end pointing in the same direction as the
open end of the main telescope. Line up the groove on the
eyepiece end of the finder scope with the rear ring of the
finder bracket. Tighten the six alignment screws equally to
secure the finder scope in place.

15. Remove the cap on the focuser drawtube and insert the
25mm Plössl eyepiece; secure it in place with the thumb­screw on the drawtube.

3. Balancing the Telescope

To insure smooth movement of the telescope on both axes of
the equatorial mount, it is imperative that the optical tube be
properly balanced. We will first balance the telescope with
respect to the R.A. axis, then the Dec. axis.