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4. Assembly

Assembling the telescope for the first time should take about
30 minutes. The only tools you will need are a Phillips head
screwdriver and a flat head screwdriver. As a general note,
tighten all screws securely to eliminate flexing and wobbling,
but be careful not to over-tighten and thereby strip the
threads. Refer to Figures 1 through 4 during the assembly
process.

During assembly (and any other time, for that matter), do not
touch the surfaces of the telescope objective lens or the lens-
es of the reflex sight and eyepieces with your fingers. These
optical surfaces have delicate coatings that can easily be
damaged if touched. Never remove any lens assembly from
its housing for any reason, or the product warranty will be
voided.

Begin set-up of the telescope by assembling the tripod and
mount first:

1. Lay the altazimuth yoke mount (5) on its side. Attach the

tripod legs (6), one at a time, to the base of the mount by
sliding a tripod leg attachment screw (21) through the top
of a leg and through the holes in the base of the mount.
The washers should be on the outside of the tripod legs.
Secure the wing nuts finger-tight. Figure 3b shows a
closeup detail of the screws attaching the tripod legs to
the altazimuth mount.

2. Install and tighten the leg lock knobs (23) on the bottom

braces of the tripod legs (6). For now, keep the legs at their
shortest (fully retracted) length; you can extend them to a
more desirable length later, once the tripod is completely
assembled.

3. Stand the tripod and mount upright and spread the tripod

legs (6) apart as far as they will go, until the accessory tray
bracket (22) is taut. Connect the accessory tray (7) to the
accessory tray bracket (22) with the three wing screws
already installed in the tray. Push the wing screws up
through the holes in the accessory tray bracket and thread
them into the holes in the accessory tray.

4. Tighten the tripod leg attachment screws (21) at the tops

of the tripod legs so the legs are securely fastened to the
mount. Use the Phillips head screwdriver and/or your fin-
gers to do this.

5. Attach the altitude micro-motion rod and thumbwheel (13)

to the optical tube (1) by first removing the flat-head screw
from the micro-motion rod attachment post (12) on the
side of the optical tube. Slide the screw through the hole
at the end of the micro-motion rod and rethread the screw
into the attachment post. Make sure the screw is tight-
ened.

The tripod is now completely assembled and the altazimuth
yoke mount is ready for the installation of the optical tube:

6. To install the optical tube (1) in the altazimuth yoke mount

(5), first slide the altitude micro-motion control rod into its
receptacle, at the same location as the altitude lock knob
(19)) on the side of the yoke. (Figure 4). Then, with the rod

in place in the receptacle, gently drop the optical tube into
the yoke so that the holes in the altitude castings (10) on
the side of the optical tube line up with the holes in the top
of the altazimuth yoke mount (5). Slide the yoke knobs
(18) through the holes in the top of the mount and thread
them into the altitude castings on the optical tube. Tighten
the altitude lock knob (19) securely.

7. Unthread the two knurled metal thumbnuts located on the

optical tube (1) and place the holes in the base of the EZ
Finder II mounting bracket (11) over the two threaded
shafts. Then thread the metal thumbnuts back on the
shafts to secure the mounting bracket to the optical tube.

8. Attach the EZ Finder II reflex sight (4) to the EZ Finder II

mounting bracket (11). Loosen the two securing thumb-
screws on the EZ Finder II (Figure 6) and slide it onto the
mounting bracket. Tighten the two securing thumbscrews.
You will align the EZ Finder II later, in the Getting Started
section.

9. Insert the chrome barrel of the 90° mirror star diagonal (2)

into the focuser drawtube (14). See Figure 3. Secure the
star diagonal with the diagonal holder thumbscrews (16).

10. Insert the chrome barrel of the 25mm Explorer II eyepiece

(3) into the 90° mirror star diagonal (2). Secure the eye-
piece in the diagonal with the eyepiece holder thumb-
screws (17). The eyepiece and diagonal properly installed
should resemble Figure 2b.

Your telescope is now fully assembled and should resemble
Figures 1-3.

5. Getting Started

Now that your Observer 70 is assembled, you’re ready to
begin observing. This section will instruct you on using your
telescope effectively.

Altitude and Azimuth (Aiming the Telescope)

The Observer 70 altazimuth mount (5) permits motion along
two axes: altitude (up/down) and azimuth (left/right) (Figure
5). Moving the telescope up/down and right/left is the “natural”

Figure 4. 

Installing the optical tube in the “yoke” altazimuth mount.

10

Содержание Observer 70mm AZ 9881

Страница 1: ...Providing Exceptional Consumer Optical Products Since 1975 Customer Support 800 676 1343 E mail support telescope com Corporate Offices 831 763 7000 P O Box 1815 Santa Cruz CA 95061 Orion Observer 70mm AZ 9881 Altazimuth Refractor Telescope ...

Страница 2: ...2 ...

Страница 3: ...micro motion control rod and thumbwheel 13 3 Tripod legs 6 with attached accessory tray bracket 22 1 Accessory tray 7 1 EZ Finder II reflex sight 4 1 EZ Finder II mounting bracket 11 3 Tripod attachment screws 21 with wingnuts and washers 3 Accessory tray attachment wing screws 3 Leg lock knobs 23 2 Yoke knobs 18 1 25mm Explorer II eyepiece 3 1 10mm Explorer II eyepiece 24 1 90 mirror star diagona...

Страница 4: ...4 Figure 1 Observer 70 Components 5 1 4 3 2 6 7 Observer 70 Refractor ...

Страница 5: ...n more detail in the Using Your Telescope section EZ Finder II reflex sight This is a special finder that helps you aim the tele scope and locate objects in the sky for viewing The EZ Finder II generates a red LED dot that shows where your telescope is aimed The use of the EZ Finder II is discussed in the Getting Started section Altazimuth yoke mount The mount couples the telescope to the tripod a...

Страница 6: ...Figure 2a Optical tube components Figure 2b Observer 70 focuser detail 6 8 9 10 11 12 14 15 16 1 3 13 18 Observer 70 Telescope Tube 2 15 14 16 17 2 17 ...

Страница 7: ...90 mirror star diagonal 2 is insert ed The drawtube is adjusted by the turning the focus wheel 15 which adjusts a rack and pinion gear sys tem to bring objects into focus Focus wheels These wheels when turned move the focuser draw tube 14 in or out Use it to bring things into focus when you are looking in the eyepiece 3 Diagonal holder thumbscrews These two thumbscrews secure the 90 mirror star di...

Страница 8: ...Figure 3b Observer 70 Tripod leg and mount attachment detail 8 Figure 3a Tripod and mount detail 5 20 21 6 Observer 70 Tripod and Mount 18 19 21 7 22 23 6 20 21 21 ...

Страница 9: ...k the tripod legs into place Loosen them to lengthen or shorten the tripod legs Tighten them once you have the leg at the desired length Be certain that all three tripod legs are equally extended to assure your telescope is level Items not shown These items are included with your telescope but are not shown in Figure 1 2 or 3 10mm Explorer II eyepiece This is a second high powered eyepiece providi...

Страница 10: ... side of the optical tube Slide the screw through the hole at the end of the micro motion rod and rethread the screw into the attachment post Make sure the screw is tight ened The tripod is now completely assembled and the altazimuth yoke mount is ready for the installation of the optical tube 6 To install the optical tube 1 in the altazimuth yoke mount 5 first slide the altitude micro motion cont...

Страница 11: ...ects The red dot is produced by a light emitting diode LED not a laser beam near the rear of the sight A replaceable 3 volt lithium battery provides the power for the diode To use the EZ Finder II turn the power knob clockwise until you hear a click indicating that power has been turned on With your eye positioned a comfortable distance from the back of the sight look through the back of the refle...

Страница 12: ...he battery lead with the positive side facing down and replace the battery cover 6 Using Your Telescope Choosing an Observing Site When selecting a location for observing get as far away as possible from direct artificial light such as street lights porch lights and automobile headlights The glare from these lights will greatly impair your dark adapted night vision Set up on a grass or dirt surfac...

Страница 13: ...many magnifications or powers with the Observer 70 Your telescope comes with two Explorer II eyepieces Figure 9 a 25mm which gives a magnification of 28x and a 10mm which gives a magnification of 70x Other eyepieces can be used to achieve higher or lower powers It is quite common for an observer to own five or more eyepieces to access a wide range of magnifications 13 Light Pollution Most of us li...

Страница 14: ... a lit room during the daytime and seeing that same object in your telescope at night One can merely be a pretty image someone gave to you The other is an experience you will never forget Objects to Observe Now that you are all set up and ready to go one critical deci sion must be made what to look at A The Moon With its rocky surface the Moon is one of the easiest and most interesting targets to ...

Страница 15: ... light pollution Take plenty of time to let your eyes adjust to the darkness Do not expect these subjects to appear like the photographs you see in books and magazines most will look like dim gray smudges Our eyes are not sensitive enough to see color in deep sky objects except in a few of the brightest ones But as you become more experienced and your observing skills get sharper you will be able ...

Страница 16: ...ed or modified nor does it apply to normal wear and tear This warranty gives you specific legal rights and you may also have other rights which vary from state to state For further war ranty service information contact Customer Service Department Orion Telescopes Binoculars P O Box 1815 Santa Cruz CA 95061 800 676 1343 Orion Telescopes Binoculars Post Office Box 1815 Santa Cruz CA 95061 Customer S...

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