Orion® TrueTrack Single-Axis DC Motor Drive System
#7831
Thank you for your purchase of an Orion TrueTrack motor drive system. The TrueTrack allows convenient hands-free sidereal tracking of the night sky for SkyView Pro mounted telescopes. The motor drive sys- tem features a push button hand controller that can move the telescope along the right ascension (R.A.) axis at speeds 2x and 8x the sidereal rate. This provides an easy way to center objects in the eyepiece. The TrueTrack single-axis drive is also a useful component for doing short and medium-exposure astro- photography.The electronic hand controller allows positional corrections to be made in the right ascension (R.A.) during an astrophotographic exposure.
R.A. motor cover
Phillips-head screw
Attaching the R.A. Motor Drive
Remove the telescope tube, counterweight, and counter- weight shaft from the mount before attaching the motor drive.
1.Remove the R.A. motor cover from the mount by loosening the Phillips head screw on the bottom of the cover (Figure 1). Slide the cover off the mount.
2.The R.A. motor assembly (Figure 2) is attached to the mount by a socket-head cap screw that goes through the hole in the rear of the equatorial mount, just above the rear latitude adjustment L-bolt (Figure 3). Attach the 4mm screw to the end of a 4mm hex key and push it up through the hole in the rear of the equatorial mount. Hold the R.A. drive in your hand so that its threaded hole meets up with the screw as it comes out the other end of the hole. Thread the screw into the threaded hole of the R.A. motor assembly until secure, but do not overtighten. This attachment pro- cess is tricky, and it may take you several tries before you get it right.
3.Remove the R.A. slow-motion control knob from the R.A. worm gear shaft if it is on the side of the mount that the
Figure 1. The R.A. motor cover.
Parts List
1 R.A. motor assembly
1Manual clutch assembly (brass gears)
1Hand controller
1Battery pack
14mm socket-head cap screw
2Velcro strips (1“hook” strip, 1 “loop” strip)
Modular jack
Brass gear
Threaded hole
Figure 2. The R.A. motor assembly.
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