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Astro-Physics 900 Counterweight Shaft Adapter with Stainless Steel Insert



If your 900 is frequently used as a portable mount, you may wish to consider upgrading to this counterweight shaft adapter.  The stainless steel insert will reduce the likelihood that you will damage the threads by cross-threading when you attach your stainless steel counterweight shaft. 

Mounts that can be upgraded: All 900 mounts including early models, except mounts with 4K or 10K Step Mounted Shaft Encoders (used with JMI Digital Setting Circles).  

Installation Instructions: Simply remove the original counterweight shaft adapter and install the new one. Note that both components were designed with a through hole into which you can insert an object, like an Allen wrench, to either loosen or tighten the adapter.


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