background image

Looking at or near the 

Sun

will cause 

irreversable

damage to your eye. Do not point

this telescope at or near the Sun. Do not look through the telescope as it is moving.

7

STEP 10:

The entire assembly should move easily up and

down and from side to side.

INSERT EYEPIECE AND ATTACH RED DOT FINDER

STEP 11:

If you wish to insert the deluxe 2 inch eyepiece,

remove the 1.25" eyepiece holder (15) from the focuser assem-

bly by loosening holder thumbscrew (as shown in photo to the

left). Slide the 2 inch eyepiece into the focuser and tighten with

the eyepiece locking screw. To focus the eyepiece, turn the

focuser wheels (13) in or out.
The focuser has both a lock knob and a tension adjustment knob.

The first lock prevents the draw tube (16) from moving in and out.

The second lock locks the focuser knob, thereby 

locking a focus position into place. Experiment with these knobs

to discover which adjustments are comfortable with your viewing

style.
Note that the 16" model comes with a two-speed focuser. Use

the large focus wheel (13A) for fast focus and the small focus

knob (13B) for fine focus.

STEP 12:

A red dot finder projects a red dot in place of

crosshairs, to make it easier to line up more precisely with a 

target.
First, assemble the red dot finder. Slide the bracket over the

groove of the red dot finder scope. Tighten the two hex screws

with the supplied hex wrench to secure in place.
Slide the red dot finder bracket into the slot on the top OTA. Slide

it in from the top (it will only go into the slot from this end). Tight-

en the thumbscrew to hold the red dot bracket securely in place.
You will need to align the red dot finder. See page 8.

STEP 13:

To move the telescope, remove the tube assembly

from the base assembly. Grasp the tube assembly by the truss-

es and lift up. It is recommended that you relocate the telescope

when it is disassembled into two pieces.

STEP 14:

Note that there is a fan on the bottom of the mirror

tube. It is powered by a battery pack using 4 AA user-supplied

batteries. 
If you begin observing at sunset, and the telescope has been

heated by the sun or by being in your car, you may notice 

“turbulence” in your images. In this case, you can run the fan until

your images stabilize and are steady. The fan probably needs to

be used less than an hour.
Note also that there are three lock screws and three collimation

screws. These screws are for use with the collimation procedure.

See page 14.

eyepiece

holder

holder

thumbscrew

bracket

groov

hex screw

bracket

top end

thumb-

screw

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Содержание LightBridge Truss Tube 10

Страница 1: ...Instruction Manual 8 10 12 16 LightBridge Truss Tube Dobsonian Telescopes MEADE COM...

Страница 2: ...damage to your eye Eye damage is often painless so there is no warning to the observer that damage has occurred until it is too late Do not point the telescope at or near the Sun Do not look through...

Страница 3: ...Meade Customer Service 16 Specifications 17 Optional Accessories 19 Appendix A Altitude Adjustment Knobs 21 CONTENTS WARNING Never leave the primary mirror uncov ered during the daytime unless using...

Страница 4: ...ottom truss lock knobs 3 7 Altitude bearing 8 Rear OTA Base Assembly 9 Side base panels 2 10 Front base panel 11 Circular base plates 2 12 Feet 3 Inset A 13 a Focus knob b Fine focus knob 16 models on...

Страница 5: ...attach the three feet to the bottom panel Line up each foot and thread a small attachment screw into the foot to hold it in place Tighten to a firm feel STEP 4 Place the center bearing bushing into th...

Страница 6: ...t panel Lift to remove the dust cover from the mirror Note You can thread the Altitude Adjustment Knob into the protrusion just below the Altitude Bearing 7 Use the Altitude Adjustment Knob when you a...

Страница 7: ...s to make it easier to line up more precisely with a target First assemble the red dot finder Slide the bracket over the groove of the red dot finder scope Tighten the two hex screws with the supplied...

Страница 8: ...D shows a correctly collimated LightBridge Dobsonian telescope as it appears when viewed through the focuser with the eyepiece removed To check and if necessary set the optical collimation follow thes...

Страница 9: ...flecting Telescope 1 Spider Vanes 2 Secondary Mirror 3 Parabolic Primary Mirror 4 Primary Mirror Hex Screws 5 Focuser Drawtube 6 Focused Image 1 2 3 4 5 6 Looking at or near the Sun will cause irrever...

Страница 10: ...veal oblong or elongated circles 2 Fig F Adjust the 3 collimating screws on the primary mirror housing until the circles are con centric on either side of the focus In summary the adjustment screws on...

Страница 11: ...too easily Just keep these bearing surfaces clean that s all the maintenance required 2 The altitude bearing surfaces 7 Fig 1 of the telescope are lightly lubricated at the factory for optimum perfor...

Страница 12: ...gher power eyepiece If the image starts to become fuzzy when you use higher magnification back down to a lower power The atmosphere is not sufficiently steady to support high powers Keep in mind that...

Страница 13: ...enus going through crescent phases But you cannot see any surface detail on Venus because it has a very thick atmosphere of gas When Mars is close to the Earth you can see some details on Mars and som...

Страница 14: ...e like a large football and are called elliptical galaxies There are many galaxies that are irregularly shaped and are thought to have been pulled apart because they passed too close to or even throug...

Страница 15: ...r blurred or distorted due to temperature differences between inside and outside air Also it is a good idea to allow your telescope to reach the ambient surrounding outside temperature before starting...

Страница 16: ...nded period perhaps for one month or more it is advisable to remove the batteries from the battery pack Batteries left in the telescope for prolonged periods may leak causing damage g Do not leave you...

Страница 17: ...ce Dust Cover To fit over primary mirror inside of lower tube Finder Deluxe red dot Computer Software CD ROM of Autostar Suite Astronomer s Edition software Assembled OTA weight 24 lbs Assembled Mount...

Страница 18: ...dels have a triangular ground plate Truss tubes Silver anodized aluminum with attachment hardware and captive bolts Machined aluminum altitude bearings Secondary Mirror Support 4 vane steel Mirror 12...

Страница 19: ...with attachment hardware and captive bolts Machined aluminum altitude bearings Secondary Mirror Support 4 vane steel Mirror 16 406mm Focal length 1829mm 72 Focal ratio f 4 5 Resolving Power 0 45 arc s...

Страница 20: ...hoto Visual Color Filters Color filters significantly enhance visu al and photographic image contrast of the Moon and planets Each filter threads into the barrel of any Meade 1 25 eyepiece and into th...

Страница 21: ...otrusion at the bottom of the tension plate The protrusion fits into the indent at the bottom of the brake Thread the tension adjustment bolt into the tension plate on the side panel of the base assem...

Страница 22: ......

Страница 23: ......

Страница 24: ...f any product or part a Return Goods Authorization RGA number must be obtained from Meade by writing or calling 800 626 3233 Each returned part or product must include a written statement detailing th...

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