ASTRO-PHYSICS 600EGTO Manual - Página 6

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Assemble Pier or Tripod

Begin by assembling the pier or tripod at the desired observing location.

ADJUSTABLE HARDWOOD TRIPOD: Remove the tripod from its carrying case and attach the shelf to each of the three

legs with the knobs provided. Adjust legs to the desired height and spread. Lock in position with the hand knobs.

PORTABLE PIER: Slide the three legs onto the nubs of the base. Place the pedestal tube on the base and attach the tension

rods. The turnbuckles should be drawn tight until the whole assembly is stiff enough to support your weight without

movement.

Assemble Mount to Pier or Tripod

In order to track the motion of astronomical objects, the polar axis must be positioned so that an imaginary line drawn

through the hollow shaft points toward the celestial pole. At this stage of the assembly process, you want to position the

mount so that it points roughly north. Place the mount into the top of the pier or tripod so that the threaded R.A. axis opening

is on the south side of the pier/tripod. Screw in the three hand knobs to hold the mount in place.

Altitude and Azimuth Adjustments - Rough Polar Alignment

For rough polar alignment, your goal is to sight the celestial pole when looking through the polar alignment sight hole in the

center of the polar axis. You will need to make altitude (up/down) and azimuth (side to side) adjustments to the position of

the mount.

We recommend that you do your rough polar alignment without the telescope since you may be making major adjustments to

the position of the mount at this time. The remainder of the mount, telescope and counterweights would add considerable

weight and require more hand effort. Later, you will do your final polar alignment with the telescope and counterweights

attached, but the adjustments will be small.

If the R.A. encoder housing and encoder adapter are installed (part # ENC600 - Mounted Encoders to use with

Digital Setting Circles - are available as an optional purchase), you may remove them to complete these steps.

Please refer to the section pertaining to encoders later in the manual. Alternatively, you can simply sight up the

side of the polar axis to see Polaris.

If you examine the polar axis assembly, you will see that the center of the polar shaft is hollow. You may need to

rotate the internal declination shaft by moving the top of the declination axis (or the cradle plate, if it is attached) to

align the sighthole that has been drilled into it. Now, you can look through the shaft to the other side.