Instruction/ maintenance manual of the product 9024 Orion
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IN 112 Rev . A 0399 Providing Exceptional Consumer Optical Products Since 1975 Customer Support (800) 676-1343 E-mail: support@telescope.com Corporate Offices (831) 763-7000 P .
2 Figure 1. Skywatcher 90 EQ P ar ts Diagram T ube ring mounting plate Dec. lock knob Dec. setting circle R.A. lock knob R.A. slow-motion control Counterweight loc king thumbscrew Counterweight Counte.
3 1. Par ts List Qty . Description 1 Optical tube assembly 1 German-type equator ial mount 2 Slow-motion control cab les 1 Counterweight 1 Counterweight shaft 3 T r ipod legs 1 Accessor y tra y with m.
4 finder scope or ey epieces with your fingers. The optical sur- f aces hav e delicate coatings on them that can easily be damaged if touched inappropriately . NEVER remov e any lens assembly from its housing f or any reason, or the product war- ranty and return policy will be void.
5 rotate freely about the R.A. axis. Rotate it until the coun- terweight shaft is parallel to the g round (i.e., horizontal). 2. Now loosen the counterweight loc king thumbscrew and slide the weight along the shaft until it e xactly counterbal- ances the telescope.
6 scale is set at the latitude of your observing site. If you don’t know y our latitude, consult a geogr aphical atlas to find it. F or example , if your latitude is 35° Nor th, set the pointer to +35.
7 Figure 1 the telescope is pointed nor th as it w ould be during polar alignment. The counterweight shaft is oriented down- ward. But it will not look like that when the telescope is pointed in other directions. Let’ s say y ou want to vie w an object that is directly ov erhead, at the zenith.
8 F or e xample , the Skywatcher 90 EQ, which has a f ocal length of 910mm, used in combination with a 25mm ey epiece , yields a power of 910 ÷ 25 = 36x.
9 published monthly in Astronomy , Sky & T elescope , or other astronomy magazines to locate them. V enus, Mars, J upiter , and Saturn are the br ightest objects in the sky after the Sun and the Moon. Not all f our of these planets are normally visi- ble at an y one time.
10 the planet to be photographed and the ISO of the film being used. “Piggybacking” Photography The Moon and planets are interesting targets f or the budding astrophotographer , but what’ s next? Literally thousands of deep-sky objects can be captured on film with a type of astrophotograph y called “piggybac king.
11 ing optical surf aces with your fingers , as skin oil may etch optical coatings. T o remove fingerpr ints or smudges from a lens, use photo- graphic-type lens cleaning fluid and lint-free optical lens cleaning tissue.
12 Figure 2c. Prepar ing the telescope to be balanced on the Dec. axis by first releasing the Dec. lock knob . Figure 2d. Balancing the telescope with respect to the Dec. axis. As shown here , the telescope is out of balance (tilting). Figure 2e. T elescope is no w balanced on the Dec.
13 RIGHT ASCENSION AXIS Declination (Dec.) slow motion control Latitude adjustment t-bolt Azimuth adjustment knob R.A. lock knob Declination (Dec.) setting circle Right ascension (R.A.) setting circle Right ascension (R.A.) slow motion control Latitude locking t-bolt Latitude scale Figure 3.
14 Figure 5a. T elescope pointing south. Note that in all these illustrations, the mount and tripod remain stationary; only the R.A. and Dec. axes are mo ved. Figure 5b . T elescope pointing north. Figure 5c. T elescope pointing east. Figure 5d. T elescope pointing west.
15 One-Y ear Limited W arranty This Orion Skywatcher 90 EQ is warr anted against defects in materials or workmanship f or a period of one year from the date of purchase.
During recent production of our Skywatcher 90 EQ (#9024), Explorer 90 AZ (#9025), and Shor tT ube 80 (#9086) tele- scopes, we de veloped an improv ed design for the finder scope brac ket. The new design mak es aiming the finder scope much easier , since it requires adjustment to only two alignment screws instead of three .
An important point after buying a device Orion 9024 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Orion 9024 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Orion 9024 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Orion 9024 you will learn all the available features of the product, as well as information on its operation. The information that you get Orion 9024 will certainly help you make a decision on the purchase.
If you already are a holder of Orion 9024, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Orion 9024.
However, one of the most important roles played by the user manual is to help in solving problems with Orion 9024. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Orion 9024 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
