Coleman CDB1145EQ1 Quick start guide

Please retain the packaging and instructions for further reference, as they contain important information.
CDB1145EQ1

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INTRODUCTION:
Congratulations on your purchase of the precision crafted CDB1145EQ1 COLEMAN telescope.
With the proper care and handling of your telescope, you will enjoy years of viewing pleasure.
As an astronomical device, the CDB1145EQ1 telescope has been designed for both a beginner and
advanced star gazer. It provides views of the moon and planets, as well as dozens of galaxies, star
clusters, and nebulae.
As a terrestrial (land) telescope, the CDB1145EQ1 brings the world’s natural wonders closer. It
delivers superb scenic views and allows for observation of animals and landscapes from a distance.
To obtain the best performance from your telescope, please carefully read this manual.

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PARTS LIST FOR CDB1145EQ1 Telescope:
Specifications, colors, packaging, and/or contents of this manual are subject to change without notice.
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WARNING!
CHOKING HAZARD
A. Secondary Mirror Position
B. Dust Cap / Mask
(Remove before Viewing)
C. Focus Tube
D. Fonderscope Bracket
E. 6x30 Finderscope
F. Finderscope Alignment Screws
G. Eyepieces (K10, K25), Eyepiece cases (2)
H. Focus Knob
I. Piggyback Bracket
J. Telescope Main Tube
K. Primary Mirror Position
1. Dec. Flexible Control Cable
2. R.A. Flexible Control Cable
3. Altitude Adjustment T-bolt
4. Azimuth Lock Knob
5. Counterweight
6. Counterweight Locking Thumb Screw
7. Counterweight Rod
8. R.A. Scale
9. Dec Scale
10. Dec. Lock Knob
11. Tube Rings
12. Moon Filter (Not Shown)
a. Accesory Tray
b. Tripod Leg

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TRIPOD and EQ1 MOUNT ASSEMBLY:
1) Carefully remove all parts from the cardboard cartons and lay them on a table, floor or
other flat surface in order to take an inventory of all the pieces. Keep your box for
storage or in case you ever need to ship your telescope.
2) Tripod Set Up:
A. Adjusting the Tripod Legs (See Figure 1)
1. Slowly loosen the height adjustment clamp and gently pull out the lower section
of each tripod leg. Tighten the screws to hold the legs in place (see Figure 1).
2. Spread the tripod legs apart to stand the tripod upright.
3. Adjust the height of each tripod leg until the tripod head is properly leveled. Note
that the tripod legs may not be at same length when the equatorial mount is level.
B. ATTACHINGTHE ACCESSORYTRAY (Fig. 2)
1. Align the accessory tray with the bracket, and secure from underneath (see Figure 2).

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3) PreparingtheEQ1MountforAssembly
Reposition the Mount Head (See Figures 3.1 through 3.5).
Follow the diagrams to place the mount into an upright position.
4) AttachingtheEQ1MounttotheTripodLegs
Position the EQ1 mount assembly collar in between the tripod legs as shown in Figure 4.
Secure in place with the included bolts and wing nuts.

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5) Installing the Counterweight (see Figure 5)
A. Slide counterweight halfway onto rod. Hold the counterweight with one hand and insert
the counterweight rod into threaded hole on mount with the other hand.Tighten
the counterweight rod onto the EQ1 mount.
B. Tighten the thumbscrew to lock the counterweight in place.
6) Installing the Control Cables (see Figure 5)
A. Locate the control cables.The control cables have two different lengths.
Although you can mount either cable to each directional axis, it is recommended
that you mount the longer cable to the declination axis and the shorter cable to
the right ascension axis (setting circle).
B. To install the control cables, slide the sleeve end of the cable over the nipple on the
end of the worm gear.Tighten the cable using the set screw against the flat surface
on the nipple.

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TELESCOPE ASSEMBLY
1) Attaching the Tube Rings to the EQ1 Mount (See Figures 6)
A. Remove the tube rings from telescope by releasing their thumb nuts and
opening their hinges.
B. Place the tube rings on top of the tube ring mounting plate and bolt the tube rings to
the mount by tightening the thumbscrews.
2) Attaching the Telescope Main Tube to the Tube Rings (see Figure 7)
A. Remove the telescope tube from the box.
B. Find the center of balance of the telescope tube. Place this point between the two tube
rings. Close the hinges around the telescope and fasten securely by tightening the
thumb nuts. DO NOT OVER-TIGHTEN.
FINDERSCOPE ASSEMBLY
1) ATTACHING THE FINDERSCOPE (see Figure 8)
A. Locate the finderscope optical assembly.
B. Remove the two knurled thumbscrews near the front of the telescope main body.
C. Position the finderscope bracket over the screws in the telescope main body.
D. Secure the finderscope assembly with the two knurled thumbscrews.

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2) ALIGNINGTHEFINDERSCOPE (see Figure 9.1 to 9.4)
Fixed magnification scopes mounted on the telescope optical tube are very useful
accessories. When they are correctly aligned with the telescope, objects can be quickly
located and brought to the center of the field. Alignment is best done outdoors in daylight
when it is easier to locate objects. If it is necessary to refocus your finderscope, sight on
an object that is at least 500 yards (meters) away. This telescope includes a 6x30
finderscope. Loosen the locking ring by unscrewing it back towards the bracket. The
front lens holder can now be turned in and out to focus. When focus is reached, lock it in
position with the locking ring (Figure 9.2).
A. Choose a distant object that is at least 500 yards away and point the main
telescope at the object. Adjust the telescope so that the object is in the center of
the view in your eyepiece.
B. Check the finderscope to see if the object centered in the main telescope view is
centered in the crosshairs of the finderscope.
C. For the included 6x30 finderscope with spring loading, adjust only the two small
screws (Fig.9.4).
EYEPIECE ASSEMBLY
1) Inserting the Eyepiece (see Figure 10)
A. Unscrew the thumbscrews on the end of the focus tube to remove the black plastic
protective end-cap.
B. Insert an eyepiece. Re-tighten the thumbscrews to hold the eyepiece in place.

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TELESCOPE BALANCING
The telescope should be balanced before each observing session. Balancing reduces
stress on the mount and allows precise micro-adjustment control. A balanced telescope is
especially critical when using the optional clock drive for astrophotography. The telescope
should be balanced after all accessories (eyepiece, camera, etc.) have been attached.
Before balancing your telescope, make sure that your tripod is in a balanced level and on
a stable surface. For photography, point the telescope in the direction you will be taking
photos before performing the balancing steps.
1) R. A. Balancing
A. For best results, adjust the altitude of the mount to between 15º and 30º if possible,
by using the altitude adjustment T-bolt.
B. Slowly unlock the R.A. and Dec. lock knobs. Rotate the telescope until both the
optical tube and counterweight rod is horizontal to the ground, and the telescope
tube is to the side of the mount. (Fig.11)
C. Tighten the Dec. lock knob
D. Move the counterweight along the counterweight rod until the telescope is balanced
and remains stationary when released.
E. Tighten the counterweight thumb screw to hold the counterweight in its new position
2) DEC. Balancing
All accessories should be attached to the telescope before balancing around the
declination axis. The R.A. balancing should be done before proceeding with Dec. balancing.
A. For best results, adjust altitude of the mount to between 60º and 75º if possible.
B. Release the R.A. lock knob and rotate around the R.A. axis so that the
counterweight rod is in a horizontal position.Tighten the R.A. thumbscrew.
C. Unlock the Dec.thumbscrew and rotate the telescope tube until it is paralleled to the
ground.
D. Slowly release the telescope and determine in which direction it rotates. Loosen the
telescope tube rings and slide the telescope tube forward or backward in the clamps
until it is balanced.
E. Once the telescope no longer rotates from its parallel starting position, re-tighten
the tube rings and the Dec. lock knob. Reset the altitude axis to your local latitude.

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OPERATING THE EQ1 MOUNT
The EQ1 mount has controls for both conventional altitude (up-down) and azimuth
(left-right) directions of motion. These two adjustments are suggested for large
direction changes and for terrestrial viewing. Use the large knurled knob located
underneath for azimuth adjustments. Loosen the knob and rotate the mount head
around the azimuth axis. Use the altitude adjustment T-bolts for altitude adjustments
(Fig. 12).
In addition, this mount has Right Ascension (hour angle) and declination direction
controls for polar-aligned astronomical observing. Loosen the lock knobs to make
large direction changes. Use the control cables for fine adjustment after the lock knobs
have both been locked (Fig.d1). An additional scale is included for the altitude axis.
This allows polar alignment for your local latitude. (Fig.12)