Quote:
Originally Posted by Malcolm
When tracking the AZ motor is making a knocking noise, which is quite disconcerting. It does not make this noise when slewing/rotating the base. What could be the cause of this?
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I've had the same effect Malcolm with my 8", but can't offer any advice as yet because I'm afraid to take the Az bearing apart and start tinkering. In my case I tend to think it's some sort of mild sticking in the works - the noise isn't super loud, but it makes a definite hollow tapping/creaking sound every couple of seconds which corresponds to the view jumping and "wobbling" when tracking, particularly at higher powers. Definitely more noticeable when slewing completely horizontally (ie, Az only, no Alt slewing at the same time). I'm hoping it's something that just needs some lube - it's almost like something is a bit tight or is pressing on the MDF base or foam packing a bit too hard.