Meade 4500 Instruction Manual Download | Manualshive

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© 1995

Rev. B

4/95

Instruction Manual

Model 4500: 4.5" Equatorial Reflecting Telescope

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30

60

90

MEADE

A D V A N C E D P R O D U C T S D I V I S I O N

Meade Instruments Corporation

World’s Leading Manufacturer of Astronomical Telescopes for the Serious Amateur

6001 Oak Canyon, Irvine, California 92618

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(949) 451-1450

FAX: (949) 451-1460

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www.meade.com

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Summary of Contents for 4500

Page 1: ...escope 0 30 60 90 30 60 90 M E A D E A D V A N C E D P R O D U C T S D I V I S I O N Meade Instruments Corporation World s Leading Manufacturer of Astronomical Telescopes for the Serious Amateur 6001 Oak Canyon Irvine California 92618 949 451 1450 FAX 949 451 1460 www meade com ...

Page 2: ...nal Distributors RGA Number Required Prior to the return of any product or part a Return Goods Authorization RGA number must be obtained by writing to MIC or calling 949 451 1450 Each returned part or product must include a written statement detailing the nature of the claimed defect as well as the owner s name address phone number and a copy of the original sales invoice This warranty is not vali...

Page 3: ...and Coordinates 8 D Lining Up with the Celestial Pole 9 E Using the Telescope 9 F Using Setting Circles 11 G Calculating Power 11 H Maintenance 12 1 Cleaning 12 2 Mount and Tripod Adjustments 12 3 Collimation 12 a Correct Collimation 12 b Spider Vane Adjustments 14 c Diagonal Holder Adjustments 14 d Primary Mirror Adjustments 14 e Star Testing the Collimation 14 I Specifications Model 4500 15 J Op...

Page 4: ...epiece 20 Viewfinder bracket 21 Declination axis 22 R A lock 23 Dec lock 24 6 x 30 viewfinder 25 Telescope front dust cover 26 Viewfinder bracket thumbscrews 27 R A setting circle 28 Dec setting circle 29 Latitude dial 30 Azimuth lock 31 Focus knobs 32 Polar shaft acorn cap nut 33 Azimuth base 34 Azimuth shaft bolt 35 R A worm block assembly 36 Dec worm block assembly 37 Cradle ring attachment kno...

Page 5: ... 1 Meade Model 4500 4 5 Equatorial Reflecting Telescope 0 30 6 0 90 30 6 0 90 M E A D E 2 4 3 40 41 42 43 1 38 39 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 22 23 24 20 25 26 27 28 29 30 31 32 33 34 35 36 37 ...

Page 6: ...entify the telescope s Standard Equipment listed in Section A 2 above The three tripod lock knobs 43 have been removed from the bottom section of each tripod leg to insure safe arrival of the tripod assembly To install thread in each tripod lock knob into the threaded hole located at the right side of each of the three gray colored castings see illustration below at the bottom of each tripod leg T...

Page 7: ...ly on its mechanical axes it must first be balanced about the 2 telescope axes the polar axis 10 and the Declination axis 21 All motions of the polar aligned telescope more on this later take place by moving about these two axes separately or simultaneously To obtain a fine balance of the telescope follow the method below Loosen the R A lock 22 and rotate the telescope so that the counterweight sh...

Page 8: ...ates Celestial objects are mapped according to the R A and Dec coordinate system on the celestial sphere Fig 2 the imaginary sphere on which all stars appear to be placed The Poles of the celestial coordinate system are defined as those 2 points where the Earth s rotational axis if extended to infinity North and South intersect the celestial sphere Thus the North Celestial Pole is that point in th...

Page 9: ...ry and virtually all of the required telescope tracking will be in Right Ascension If the telescope were perfectly aligned with the pole no Declination tracking of stellar objects would be required For the purposes of casual visual telescopic obser vations lining up the telescope s polar axis to within a degree or two of the pole is more than sufficient with this level of pointing accuracy the tel...

Page 10: ...contact will cause the image to move Likewise avoid observing sites where ground based vibrations may resonate the tripod Viewing from the upper floors of a building may also introduce image movement You should allow a few minutes to allow your eyes to become dark adapted before attempting any serious astronomical observations Use a red filtered flashlight to protect your night vision when reading...

Page 11: ...aracteristics the focal length of the main telescope and the focal length of the eyepiece used during a particular observation For example the focal length of the Model 4500 telescope is fixed at 910mm To calculate the power in use with a particular eyepiece divide the focal length of the eyepiece into the focal length of the main telescope For example using the MA25mm eyepiece supplied with the M...

Page 12: ... 16 Azimuth shaft bolt 34 located underneath the mount and in between the three tripod legs clockwise to a firm feel The R A 35 and Dec 36 worm block assemblies can have backlash removed by releasing the 2 Phillips head screws on each assembly applying pressure to the worm block against the worm gear and then tightening the Phillips head screws Note that overtightening of any of the nuts bolts or ...

Page 13: ...e primary mirror with the 3 mirror clips 2 Fig 7 the diagonal mirror 3 Fig 7 the spider vanes 4 Fig 7 and your eye 5 Fig 7 Properly aligned all of these reflections will appear concentric i e centered as illustrated in Figure 7 Any deviation from the concentric reflections will require adjustments to the diagonal assembly Fig 5 and or the primary mirror cell Fig 6 2 1 3 Fig 5 Diagonal Assembly 3 2...

Page 14: ...ed within the diagonal mirror reflection When the diagonal mirror is correctly aligned it will look like Fig 10 Note that the primary mirror is shown out of alignment d Primary mirror adjustments If the diagonal mirror 1 Fig 10 and the reflection of the primary mirror 2 Fig 10 appear centered within the drawtube 3 Fig 10 but the reflection of your eye and the reflection of the diagonal mirror 4 Fi...

Page 15: ...ptional Meade accessory eyepieces 126 2x Telenegative Barlow Lens 1 25 O D The high quality 126 Barlow lens serves to double the power of any American size 1 25 eyepiece used 531 Electric Motor Drive With the 531 Motor Drive attached the telescope automatically tracks astronomical objects in their paths across the sky Three AA size user supplied batteries power the DC servo motor to rotate the Rig...

Page 16: ...O D U C T S D I V I S I O N Meade Instruments Corporation World s Leading Manufacturer of Astronomical Telescopes for the Serious Amateur 6001 Oak Canyon Irvine California 92618 949 451 1450 FAX 949 451 1460 www meade com ...

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