SOURCE: right ascesion slow motion control knob loose, does not work
The RA knob has a setscrew that fixes it to the shaft. Just need to find the correct size and tighten.
SOURCE: Can't release RA axis manually
I had one come in like this. AS you say the RA axis should be free to rotate in the RA housing when the clutch lever is released. The cylinder that the worm is machined on is binding on the axle. This doesn't overly effect normal tracking, but makes gross adjustments impossible. The only solution is to tear the mount down and finish the parts to eliminate the interference. Google astronomyboy for the how to. I have to warn you that I had to heat the cylinder and axle in the oven at 250 for 30 minutes before they would separate. don't use the wife's good oven mits!! When I finish these parts I use Soft Scrub (w/o bleach) as a grinding compound. It's basically bicarb in a jell. HTH, Geo.
SOURCE: Confused with RA setting circle with Orion XT8 Dobsonian
An Orion XT 8 DOB cannot be polar aligned??? The mount is ALT AZ ---
You would need an equatorial platform to polar align. There are no setting circles on a stock XT??
SOURCE: Vixen Telescope DD-1 Dual Motor Controller for RA and Declination
Vixen can repair your telescope-- and or the controller--
Contact OPT at this web site -- they are a Vixen dealer and can advise you about what to do--
http://www.optcorp.com/
SOURCE: CELESTRON 127EQ faulty magnification
Are you looking through the eyepiece at the side or the finder scope that sits along the top? I can't think of anything else! Sorry.
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