Welcome to a new world of adventure. The Orion EQ-3M
Single-Axis DC Motor Drive System allows convenient
hands-free tracking of the night sky for telescopes that utilize
the Orion EQ-3 Equatorial Mount. The motor drive system
also features a push-button hand controller that can move
the telescope along the R.A. axis at speeds 2x and 8x the
siderial rate. This provides an easy way to center objects in
the eyepiece, and also allows for advanced astrophotogra-
phy with the EQ-3 mount.
1. Parts List
1 R.A. motor drive assembly
1 Hand controller
1 Battery pack
1 4mm Allen wrench
1 2mm Allen wrench
2. Installing the R.A. Motor Drive Assembly
1. When facing the front of the mount, the R.A. slow-motion
control cable should be mounted to the right end of the
R.A. worm gear shaft (Figure 1). If it is mounted on the left
end, remove it, and reinstall it on the right end of the
shaft.
2. Using the provided 2mm Allen wrench, loosen the socket-
head setscrew on the end of the R.A. motor drive coupler
(Figure 2).
3. Use the provided 4mm Allen wrench to remove the
socket-head screw on the left side of the mount (Figure
3).
4. Orient the motor so that the drive coupler slips over the
left end of the R.A. worm gear shaft. Now, attach the
motor to the mount by inserting the socket-head screw
Orion
®
EQ-3M Single-Axis DC Motor Drive System
#7829
Figure 1:
The R.A. slow motion control cable needs to be mounted
on the right end of the R.A. worm gear shaft.
Figure 3:
Remove the socket-head screw indicated on the mount.
Figure 2:
Loosen the setscrew on the end of the drive coupler.
This is the setscrew that engages and disengages the motor
drive.
Figure 4:
The R.A. motor drive assembly properly connected to
the mount.
Left end of
R.A. worm
gear shaft
Right end
of R.A.
worm gear
shaft
Setscrew
on end of
R.A. motor
drive coupler
Socket-head
screw
