Posted 04 April 2015 - 04:41 PM
There is not a manual on reconditioning your mount that I know about. Most likely, the thick grease used to lubricate internal parts has gone away over time, plus there may be some wear. There also may be some set screw that has backed off of a shaft a bit.
I have not had an equatorial mount apart, but my best guess is that you will need to take it apart yourself and assess the situation. With older scopes, whose history is not known, just about any situation is possible.
If you do not have an instruction manual for the scope, let me know and I will see if I can search around and find one.
Sky Hunters' Haven Observatory,
Broken Arrow, Oklahoma