Orion Table of Contents, Parts List, Installing the EQ-1M, Motor, EQ-1M and EQ-2M, EQ-1M only

Welcome to a new world of adventure. The Orion EQ-1M and EQ-2M Single-Axis DC Motor Drive Systems allow convenient hands-free tracking of the night sky for Orion EQ-1 and EQ-2 equatorial mounts. The motor drive systems are also necessary components for doing any long-exposure astropho- tography with the mounts; they provide accurate sidereal tracking with an electronic hand controller for making positional corrections to the right ascension axis of the mount when guiding an astrophoto.

Table of Contents
1.	Parts List	2
2.	Installing the EQ-1M Motor Drive System	2
3.	Installing the EQ-2M Motor Drive System	3
4.	Operation	3
5.	Specifications	4

1. PARTS LIST

EQ-1M and EQ-2M

1Motor drive assembly

1Hand controller

1Battery pack

EQ-1M only

12mm Allen wrench

14mm Allen wrench

2. Installing the EQ-1M

Socket-head setscrew

Mounting bracket

Drive coupling

Input jack

Motor

Figure 2. The EQ-1M motor. The socket-head setscrew on the end of the drive coupling connects the motor to the right end of the R.A. worm gear.

The EQ-1M Motor Drive System is intended for use with tele- scopes that utilize the Orion EQ-1 equatorial mount.

1.When facing the front of the mount, the right ascension (R.A.) slow-motion control cable should be mounted on the left end of the R.A. worm gear shaft (see Figure 1). If it is mounted on the right end, remove it from the mount, and reinstall it on the left end of the shaft.

R.A. slow-motion control cable

Right end of R.A.	Socket-
worm gear shaft
	head bolt

Figure 1. Orion EQ-1M mount with R.A. slow-motion control mounted on left end of R.A. worm gear shaft.

2.Loosen the socket-head setscrew on the drive coupling of the motor drive assembly (see Figure 2) using the pro- vided 2mm Allen wrench.

3.Use the provided 4mm Allen wrench and remove the socket-head bolt on the right side of the equatorial mount (see Figure 1).

4.Orient the motor drive so that the drive coupling slips over the right end of the R.A. worm gear shaft. Now, attach the motor to the mount by inserting the socket-head bolt through the slot in the motor drive’s bracket, and rethreading it into the mount.

5.Tighten the socket head setscrew on the end of the cou- pling. The setscrew should seat into the groove on the end of the worm gear shaft. You may need to rotate the worm gear, using the R.A. slow-motion control cable, for the setscrew and the groove to line up. Once the setscrew is tightened, the motor is engaged. When the motor is engaged, never, under any circumstances, should you use the R.A. slow-motion control cable! If you want to use the R.A. slow-motion control cable, you must first loosen the socket-head set screw on the end of the drive coupling.

The motor is now properly installed on the EQ-1 mount, and should appear as in Figure 3.

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