Table Of Contents; Unpacking - Orion XT4.5 Instruction Manual

Table of Contents

1. Unpacking............................................................................................................................. 3
2. Assembly .............................................................................................................................. 4
3. Using Your Telescope ........................................................................................................... 6
4. Observing Tips...................................................................................................................... 9
5. Astronomy Basics ................................................................................................................. 10
6. Care and Maintenance ......................................................................................................... 13
7. Specifications........................................................................................................................ 13
Appendix A: Collimation (Aligning the Mirrors) ......................................................................... 14
Appendix B: Cleaning the Optics ...............................................................................................15

1. Unpacking

The telescope will arrive in two boxes, one containing the
optical tube assembly and accessories, the other containing
the unassembled Dobsonian base. Be careful unpacking the
boxes. We recommend keeping the original shipping con-
tainers. In the event that the telescope needs to be shipped
to another location, or returned to Orion for warranty repair,
having the proper shipping containers will help ensure that
your telescope will survive the journey intact.
Make sure all the parts in the Parts List below are present. Be
sure to check boxes carefully, as some parts are small. If any-
thing appears to be missing or broken, immediately call Orion
Customer Support (800-676-1343) for assistance.
Parts List
Box #1: Optical Tube Assembly and Accessories
Qty. Description
1 Optical tube assembly
1 Optical tube Dust cover
1 25mm Sirius Plössl eyepiece, 1.25" barrel diameter
1 10mm Sirius Plössl eyepiece, 1.25" barrel diameter
1 Eyepiece rack w/mounting wood screws
1 6x26 Correct-Image finder scope w/O-Ring
1 Finder scope bracket
2 Spring coils
2 Pull loops
1 Collimation cap
4 Nylon spacers (black)
2 1/4" washers (black)
2 Phillips head screws (black, length 1-1/2")
WARNING:
Never look directly at the
Sun through your telescope or its finder
scope-even for an instant-without
a professionally made solar filter that
completely covers the front of the
instrument, or permanent eye damage
could result. Young children should use this
telescope only with adult supervision.
Box #2: Dobsonian Base
Qty. Description
1 Left panel
1 Right panel
1 Front brace
1 Top baseplate
1 Ground baseplate
10 Base assembly screws
4 Trim caps (black)
3 Plastic feet
3 Feet attachment wood screws (length 3/4")
1 Self-adhesive rubber bumper
1 Large hex-head bolt (length 2")
2 3/8" washers
1 3/8" lock nut
1 Nylon spacer (white)
1 T-nut
3