GSO RC8 Help

[widow18]

I may have to adjust the collimation on my GSO RC8 and would just like to know if I have to release tension on the center screw on the secondary mirror before moving the adjusting Allen key bolts. In other words is the center fastener a locking device?
Regards
Peter

[JohnH]

No it is not - do not adjust the centre screw, only the three collimation adjusters - and then you should only need a very small adjustment.

[Paul Haese]

The center screw is for holding the secondary mirror assembly onto the spider, so you don't adjust it.

[widow18]

Thanks for that.
To adjust the main mirror is it necessary to loosen all silver locking bolts before adjusting the others?
Regards
Peter

[TrevorW]

http://www.iceinspace.com.au/forum/showthread.php?t=91416

[widow18]

Trevor
Thanks, but I can't see it answers my question of the physical actions necessary to adjust the main mirror or a GSO RC8.
Regards
Peter