iOptron CEM26 Instructions

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Instruction on Polar Scope Replacement of a CEM26/GEM28 Mount

Toll needed: a set of metric Allen wrench

DO NOT OVER TIGHTEN THE SET SCREW!!!

To Remove/Replace/Rotate a CEM26/GEM28 iPolar:

For GEM28

1. Unthread the red RA rear cover

2. Release two set screws on RA axle.

3. Pull out the iPolar

4. Set the mount in Zero Position and insert a New iPolar

5. Check the iPolar orientation to make sure ALT adjustment will result image vertical movement.

For CEM26

1. Release the screws from side

2. Release the other screw from the bottom

3. Pull out the iPoler

4. Set the mount in Zero Position and insert a New iPolar.

5. Check the iPolar orientation to make sure ALT adjustment will result image vertical movement.

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Page 1 Instruction on Polar Scope Replacement of a CEM26/GEM28 Mount Toll needed: a set of metric Allen wrench DO NOT OVER TIGHTEN THE SET SCREW!!! To Remove/Replace/Rotate a CEM26/GEM28 iPolar: For GEM28 1. Unthread the red RA rear cover 2. Release two set screws on RA axle.
Page 2 To Install an AccuAlign Optical Polar Scope: The RA axis locking wrench will not be able to be used due to the length of optical polar scope. The LED brightness is not adjustable. You’ll need to block part of the LED if you would like a dim illumination. 1.
Page 3 Polar Scope Alignment There are three Reticle Adjustment Screws on the side of the Polar scope, as shown in the following photo. Lock Ring Objective Lens Reticle Adj. Screws (1) Aim the polar scope to a distant object, such as a flag top or building corner. Adjust the object lens to focus the polar scope to the object.

Gem28