Sky Watcher CQ350 backlash issues

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Neil Dunn avatar
Just bought a new S.W. CQ350 mount and the Dec backlash is 0.5mm at the end of the saddle!  Does anyone know how to adjust the Dec backlash on these mounts.  Thanks
Marc-Antonio Fischer avatar
Lil bit late but maybe it helps someone. You got the first version or the 2nd one? There is a german PDF https://www.teleskop-express.de/media/pdf/CQ350-Einstellen-Schneckenspiel.pdf 

The first version of this mount do not have these 4 screwes and the backlash can not be adjusted from outside. You need to open the whole mont and do the same thing like in the PDF.
Marc
Neil Dunn avatar
Thanks Marc, I did find the necessary info and fixed the problem.
Neil
Well Written
Bronco Oostermeyer avatar
Hello Neil, did you fix it by tightening the grub screws as explained in the pdf? I'm asking because I'm facing backlash issues as well.
Well Written Engaging
Neil Dunn avatar
Hi Bronco, I was able to get a reasonable result by using the attached PDF.  This document covers both the early version and the later one.   However the manufacturing tolerances prohibited a perfect result.

1-SW-1-CQ350 backlash adjustment.pdf