Celestron CGX Equatorial 800 HD Telescopes CGX EQ Mount and Tripod Manual - Page 9

Roughly Polar Align the Mount Before more weight is added to the mount and tripod, roughly position the mount so that it's pointing north (or south if in the southern hemisphere), and set to your latitude. Loosen the two altitude lock knobs, then turn the altitude adjustment knob (Figure 1.1) until you are roughly set to your latitude indicated on the latitude scale (Figure 1.2), then retighten the altitude lock knobs. The scale is intended for rough polar alignment only. A more precise polar alignment can be achieved later with the assistance of the computerized hand control. Dovetail Lock Knobs Add the Counterweights Remove the stop nut at the end of the counterweight shaft, add the counterweights, then thread the stop nut back on. Keep the Counterweight shaft pointed downward. (Figure 1.1) Attach the Telescope to the Mount 1. M ake sure both R.A. and DEC clutch levers are tightened. 2. L oosen the dovetail saddle lock knobs enough to allow the dovetail to fit into the saddle. Note the arrow should be pointing to the same side as the front handle (Figure 4). 3. S lide the telescope's dovetail bar into the dovetail saddle of the mount. Tighten the telescope in place with the two lock knobs (Figure 5). The CGX fits the large Celestron CGE-style dovetail and the smaller CG-5-style dovetail, also common to the Losmandy D1 and Vixen-style2 dovetail. Figure 5 Telescope dovetail securely in place Balance the Mount Right Ascension Axis: Carefully unlock the clutch lever for R.A. and position the counterweight shaft so that it's horizontal. Without letting go of the telescope, check to see which side the balance is in favor of. Slide the counterweights as needed so the R.A. axis does not move when the clutch is unlocked. Declination Axis: With the counterweight shaft still positioned horizontally, carefully unlock the clutch lever for DEC and check which way the optical tube is balanced (Figure 6). Slide the optical tube forward or backward as needed to achieve balance. For large and heavy telescopes, return the telescope to the home position before loosening the dovetail saddle lock knobs. 1 Test fit your Losmandy dovetail bar before securing your telescope to the mount. Sizes and dovetail angles across different manufacturers can vary. 2 Test fit your Vixen dovetail bar before securing your telescope to the mount. Be aware that some of the Vixen-style dovetails are not flat and have different heights along the bar. Depending on the length of the flat, it can affect the fit onto the dovetail saddle of the mount. Dovetail Orientation Arrow Figure 6 Balancing the mount Figure 4 Attaching the mount to the tripod ENGLISH | 9