ORION TELESCOPES & BINOCULARSinstruction Manual SkyQuest xx12g Instruction Manual Download Page 2

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Figure 1.

Overview of SkyQuest XXg Dobsonian (16" shown)

Navigation
knob

Captive
clamping
knobs (x12)

Upper optical
tube section

12.5mm Illuminated Plössl

Eyepiece rack

2" extension adapter

1.25" eyepiece adapter

Top groundplate

Bottom groundplate

Captive base
connecting bolts (x12)

EZ Finder II

2" DeepView eyepiece

2" Dual-speed
Crayford focuser

Truss poles

Lower optical
tube section

Handle

Altitude motor and
encoder housing

Altitude
clutch knob

GoTo hand
controller

Hand controller
bracket

Azimuth motor and
encoder housing

Summary of Contents for SkyQuest xx12g

Page 1: ...Orion SkyQuest XXg GoTo Truss Tube Dobsonians 10148 XX12g 8964 XX14g 8968 XX16g XX14g Customer Support www OrionTelescopes com contactus Corporate Offices 89 Hangar Way Watsonville CA 95076 USA Provid...

Page 2: ...rack 2 extension adapter 1 25 eyepiece adapter Top groundplate Bottom groundplate Captive base connecting bolts x12 EZ Finder II 2 DeepView eyepiece 2 Dual speed Crayford focuser Truss poles Lower opt...

Page 3: ...ips in four boxes with the truss poles and coun terweights contained in a separate box The XX16g is pack aged in five boxes with the base components divided into two separate boxes to keep the weight...

Page 4: ...232 computer interface cable 1 Hand controller bracket with 2 mounting screws 3 Counterweight mounting bolts XX14g XX16g 1 Cooling accelerator fan with battery holder XX12g only 1 Instruction manual n...

Page 5: ...s 2 2 lbs each XXX16g only Figure 4 Contents of the truss pole and counterweight box The XX16g contains nine counterweights For the XX12g the truss poles are included in the optical tube box and there...

Page 6: ...e 2mm 4mm 6mm 3 Plastic feet XX12g only feet are pre installed on XX14g and XX16g 3 Feet wood screws 1 long XX12g only Box 5 Dobsonian Base XX16g only Qty Description 1 Groundplate assembly with azimu...

Page 7: ...arter holes on the perimeter of the bottom ground plate Figure 6a Insert the screws through the feet and thread them into the predrilled starter holes Figure 6b with a Phillips screwdriver until tight...

Page 8: ...gure 10 The completed side panel and front panel assembly Figure 12 Find the two pilot holes and attach the hand controller bracket but don t overtighten the screws Figure 11 Place the large opening o...

Page 9: ...he eyepiece rack over the screw heads and slide it downward until it stops Figure 11 Tighten the screws to secure the rack in place 8 The XXg base includes a bracket that holds the hand controller whe...

Page 10: ...recommend placing a soft towel on a flat surface and placing the mirror face down on the towel because the aluminized outer edge of the mirror will contact the surface With the XX12g mir ror on the ot...

Page 11: ...e entire mirror cell assembly should seat onto the tube Now replace the Phillips screws that fas ten the rear end ring to the tube Before assembling the rest of the optical tube you should con sider h...

Page 12: ...be section as need ed to access the counterweight mounting bolts on the rear cell and thread the counterweights onto each of the three mounting bolts Spin them clockwise until they stop 5 Now attach t...

Page 13: ...back and firmly tighten the eight clamping knobs on the lower truss support ring If after assembling the truss poles are loose within the truss connectors use the supplied 4mm hex key to tighten the b...

Page 14: ...dark skies and a brighter setting is needed under light polluted skies or in daylight Aligning the EZ Finder II When the EZ Finder II is properly aligned with the telescope an object that is centered...

Page 15: ...he backyard observing spot It obviates the need to disassemble the telescope just to move it a short distance Visit OrionTelescopes com or call Orion customer service at 800 676 1343 for details The o...

Page 16: ...aid in collimating the primary mirror of the XXg has a tiny adhesive ring marking its exact center Figure 3a This center ring will not affect the images you see when observing with the telescope in a...

Page 17: ...ctions within the secondary mirror in order to properly adjust the tilt of the secondary mirror Adjusting the tilt of the secondary mirror and the tilt of the primary mirror are the two collimation ad...

Page 18: ...perfect circle Figure 33 If the image is unsymmetrical the telescope is out of collimation The dark shadow cast by the secondary mir ror should appear in the very center of the out of focus circle lik...

Page 19: ...ne turn of the coarse focus knobs so much finer adjustment is possible than with just the coarse focus knobs alone You ll find this is a great convenience especially when attempting to focus at high m...

Page 20: ...e able to keep them on while you observe if your eyepieces have enough eye relief to allow you to see the whole field of view You can try this by looking through the eyepiece first with your glasses o...

Page 21: ...t which means different densities of air are rapidly mixing This causes significant distortion of the incoming light which prevents sharp views at high magnifica tions Keep in mind that as magnificati...

Page 22: ...8 planets Moon 212 named stars 55 well known double stars 20 well known variable stars 25 user defined objects SkyQuest XX14g GoTo Primary mirror 356mm diameter parabolic center marked Focal length 16...

Page 23: ...reflectivity with SiO2 overcoat Minor axis of secondary mirror 91mm Optical tube weight assembled 69 lbs Base weight 105 lbs Tube length 68 Operation Northern or Southern hemisphere Power requirement...

Page 24: ...nly valid in the country of purchase This warranty does not apply if in Orion s judgment the instrument has been abused mishandled or modified nor does it apply to normal wear and tear This warranty g...

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