ASTRO-PHYSICS 600EGTO Handbuch - Seite 8

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maneuver may be difficult to accomplish with a large, heavy instrument. We prefer this keyhole method to the standard way

of completely removing the screws and possibly dropping them in the grass.

If you are using a dovetail plate (DOVE08, DOVE15, and DOVELM) on your mount, you will attach your mounting rings to the

corresponding sliding bar.

Right Ascension Axis Clutch Lever

The lever on the top of the polar axis is the clutch for that axis. The R.A. motor will not drive the R.A. axis until this clutch

lever is engaged. We recommend that you turn the lever enough to engage the motor while still allowing you to move the

scope by hand. It is not necessary to tighten the lever with force.

Declination Axis Clutch Lever

The lever just below the cradle plate is the clutch for the dec. axis. The dec. motor will not drive the dec. axis unless this

clutch lever is engaged. We recommend that you turn the lever enough to engage the motor while still allowing you to move

the scope by hand. It is not necessary to tighten the lever with force.

Balancing Your Telescope

For proper operation, the telescope must be adequately counterbalanced. Start by balancing the tube assembly.

Tighten the R.A. axis clutch lever and loosen the Dec. axis clutch lever so that the telescope tube rotates on the

declination axis. Be careful because if your telescope is significantly out of balance, it may swing rapidly in the out-

of-balance direction.

If you are using a dovetail plate, loosen the two side knobs and move the sliding bar, with scope attached, forward

and backward. If you are not using the dovetail plate, loosen the hand knob on the mounting rings and slide the

tube up or down. The scope is balanced when it stays level with no clutch drag.

Now, tighten the declination axis with the dec. clutch lever and loosen the R.A. clutch lever.

Move the counterweights up or down to achieve balance in R.A.

Remember to allow for the extra weight of diagonals, eyepieces, and finderscopes. If the scope moves by itself,

even when the clutches are loose, the scope is not fully counterbalanced. A small amount of imbalance is

permissible.