INSTRUCTION MANUAL
IN 596 11/17
Orion
®
DC Motor Drive
For EQ-1C Mount
#7822
Customer Support:
www.OrionTelescopes.com/contactus
Corporate Offices:
89 Hangar Way, Watsonville CA 95076 – USA
Copyright © 2017 Orion Telescopes & Binoculars
All Rights Reserved. No part of this product instruction or any of its contents may be reproduced, copied,
modified or adapted, without the prior written consent of Orion Telescopes & Binoculars.
Providing Exceptional Consumer Optical Products Since 1975
®
Figure 1.
Parts included with the motor drive.
This motor drive is designed to provide electronic, hands-free
tracking of celestial objects with the Orion EQ-1C equatorial
mount. Electronic tracking makes objects appear to stand still in
the telescope’s field of view, rather than drifting due to the Earth’s
rotation. You won’t have to reposition the telescope to re-center an
object in the eyepiece as the object moves across the sky—a wel-
come convenience!
This motor drive is designed for use in the Northern Hemisphere only.
1. Included parts
A
Motor
B
Battery holder
C
Gear wheel
D
Gear wheel screw
E
Anchor post
F
Spring
G
Clutch cord
Refer to
Figure 1 and the parts list above to make sure all the
parts are present. If anything is missing or damaged contact Orion
Technical Support at www.OrionTelescopes.com/contactus.
2. Assembly
You will need two tools to install the motor drive on the mount: an
adjustable wrench or a 17mm crescent wrench and a small flat-
blade screwdriver.
Installing the Batteries
1. The motor drive is powered by four AA alkaline batteries (not
included), which you must place in the battery holder (B) prior
to use (
Figure 2). Make sure the power switch on the bottom
of the battery holder is in the OFF position. Remove the battery
holder cover and insert the batteries as indicated inside the
battery compartment. Then slide the cover back in place.
2. Remove the acorn nut adjacent to the latitude scale from the
equatorial mount (
Figure 3). Leave the latitude scale and clear
washer in place.
3. Thread on the anchor post (E) until tight (
Figure 4). If the lati-
tude scale moved when the acorn nut was removed, rotate it
to the proper orientation before tightening the anchor post. The
proper orientation is with the 0 degree mark pointing straight
up.
4. Place one end-loop of the spring (F) over the right ascension
(RA) axle as shown in
Figure 5.
5. Place the center hole of the gear wheel (C) on the axle (
Figure
6A). Then insert the gear wheel screw (D) into the hole and
tighten with a flat-blade screwdriver to secure the gear wheel
on the axle (
Figure 6B).
6. Place the motor’s (A) coupler over the anchor post, then lightly
tighten the thumbscrew on the coupler (
Figure 7).
7. Now hook the free end of the spring onto the end of the clutch
tab (
Figure 8). By doing this, the small brass spur gear should
contact and mesh with the larger gear wheel as shown.
8. This step is optional, but if desired you can loop the clutch cord
(G) around the clutch tab and tie a knot to make it a loop (see
Figure 11B).
9. Lastly, plug the cable from the battery holder (B) into the power
jack on the motor (
Figure 9).
The motor drive is now properly installed on the mount.
Figure 2.
Install four
AA alkaline batteries in
the battery holder as
shown.
A
C
B
D
E
F
G
