3
Table of Contents
1. Overview
…………………………………………………………………………………………………………………………….…………………………..
2
2. Unpacking and Parts List
………………………………………………………………………………………………………….………………...
3
3. Base Assembly
.……………………………………………………………………...……………………..…………………………………………...…
4
3. Using Your Telescope
……………………………………………………………………………………………………….…………...…………..
6
4. Collimation (Aligning the Mirrors)
……………………………………………………………………………………..……………..………
9
5. Astronomical Observing
……………………………………………………………………………………………...…………..…….…………
11
6. Care and Maintenance
…………………………………………………………………………………………………..………………….……...
15
7. Specifications (BT 202 and BT 252)
……………………………………………………………………….……………..………………
15
8. Specifications (BT 302)
……………………………………………………………………………………………….……………..….………….
16
9. Suggested Accessories
………………………………………………………………………………...……………………………..…………...
16
10. Warranty
………………………………………………………………………………………………………...……………..…….…………………...
16
2. Unpacking
The telescope will arrive in two boxes.
The larger box contains the optical tube assembly and accessories.
The Large flat pack contains the unassembled Dobsonian base and hardware.
Below is a packing slip for both boxes.
When unpacking the boxes please be careful as there are some small parts that could easily become lost.
We suggest that this be done indoors. We recommend keeping the original shipping containers. In the event
that the telescope needs to be shipped to another location, or returned to Bintel 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 anything appears to be missing or broken, call Bintel Customer Support (02) 9518 7255 for assistance.
Box #2: Dobsonian Base
Qty. Description
1
Left panel
1
Right panel
1
Front brace
1
Top baseplate (has countersunk holes in it)
1
Ground baseplate
2
Metal disks
1
Roller Bearing Mat
1
Aluminium Tube (sleeve between top and
bottom baseplates)
Hardware Pack
1
Eyepiece rack
2
Eyepiece rack mounting wood screws
(length 3/4")
1
Handle
2
Socket-head cap screws, 5/16" (black)
1
Large Allen wrench (6mm)
8
Base assembly screws (length 2")
(BT 202 / BT252)
12
Base assembly screws (length 2")
(BT 302)
1
Small Allen wrench (size 4mm)
3
Plastic feet
3
Feet attachment wood screws (length 1")
1
Large hex-head bolt (length 3")
Parts List
Box #1: Optical Tube Assembly and Accessories
Qty. Description
1
Optical tube assembly
1
Dust cover
1
26mm Bintel Wide Angle eyepiece 2” barrel
(all models)
1
15mm Bintel Plossl eyepiece 1.25” barrel
diameter
(all models)
1
9mm Bintel Plössl eyepiece, 1.25" barrel
diameter
(all models)
1
Right Angled 8 x 50 finder scope
1
Finder scope bracket with O-Ring
1
Moon Filter
1
Instruction Manual
2
Altitude Bearings with Braking System
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.
