ASTRO-PHYSICS 600 Manual

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Model 600 Parts List

Polar Axis Assembly (Right Ascension – R.A.) with Stepper Drive

Declination (Dec.) Axis Assembly with Cradle Plate / Tangent Arm with Declination Stepper Drive

Stainless Counterweight Shaft with washer stop and knob

Dual Axis Controller

Power Cord (cigar lighter adapter)

Interconnect cords (connect to the motors)

Hex bolts / washers for Dec. axis

3/8" Long Arm Allen Wrench

3/16" Short Arm Allen Wrench

Operating and Maintenance Instructions for Model 600

The Model 600 mounting is very rugged, but like any precision instrument, it can be damaged by improper use. Please

read all instructions before attempting to set it up for use.

Assembly of the parts

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

Pier:

a. Slide the three legs onto the nubs and attach the tension rods. The turnbuckles should be drawn tight until

the whole assembly is stiff enough to support your weight without movement.

b. Place the mount assembly into the pier. Line up the holes and screw in the three hand knobs to hold it in

place.

Tripod: a. Slide a threaded rod into the holes located approximately 1/3 down on each leg. Attach a knob to each

end of the rod, but do not tighten at this point.

b. Assemble the legs to the casting with the remaining threaded rods and knobs.

c. Adjust the position of the legs in such a way that the groove on the bottom surface of the shelf rests on

the threaded rods on each leg.

d. Tighten the knobs so the shelf remains firmly in place. Tighten the knobs at the top of the leg so that the

casting is firmly attached.

e. Place the mount assembly onto the tripod and attach the three bolts from underneath to hold it in place.

2. If your mount is disassembled, complete assembly at this point. Attach the Dec. assembly to the R.A. axis with the

two bolts provided. The declination motor should be positioned at the front of the mount, in the direction the telescope

is pointing. Attach the counterweight shaft to the Dec. axis. You are now ready to polar align the mounting.

NOTE: During disassembly, the cradle plate may be left on the Dec. axis or removed, as desired.

Polar Alignment

IMPORTANT: Do not attempt to polar align with the telescope and counterweights attached to the

mounting. Permanent damage may result!

1. With no weight on the mounting, loosen the two side bolts that lock the polar axis to the pier top. The elevation of this

axis can now be adjusted by turning the adjusting knob so that the R.A. axis moves up or down to point at the pole.

ASTRO-PHYSICS MODEL 600 MOUNT WITH

DUAL AXIS STEPPER MOTORS AND TANGENT ARM