Quote:
Originally Posted by Legin
Hello,
I have recently purchased a Celestron Omni XLT 150. The mount is pretty good but it seems to have problem. On of the screws on one of the axis seems to not tighten enough (declination). I have looked at the screw and it seems to just be a normal brass screw that fits onto a clamp like clip thing that you turn to tighten and losen it. I have attached a picture to show you what I mean. Basically if you tighten the screw to a point where it is as tight as you can make it without going to tight. I try not to over tighten it as I am afraid it might dethread the screw or even dmage the mounting thread itself. Either of these things would be a pain to fix. Basically when the screw is tightened the telescope often still moves in the declination motion. This makes it near impossible to keep the scope pointed at things and downright annoying as suddenly the scope will fall due to gravity and swing through the declination. Anyway I was wondering what I could do to help reduce the problem here. I usually get the scope to stay pretty much pointed in the right direction but this issue can be a bit annoying.
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The GEM (a CG4) looks like a rebadged GP or GPE.
The plastic part pops off , might take a little coaxing with a pair of pliers, or a bit of a jimmy with a big flat ended screwdriver under the (as close as possible to the bolt body) and when it comes off it will reveal a square shaped or similar top (that's what my old CG5 has) , you can then screw it in with a shifter or spanner until tight enough and attach the plastic cover on top , and that should fix the problem, (you've only got a part turn between tight and loose). Careful not to tighten too much as the casting (aluminium is not very strong and you risk stripping the thread).
Hope that helps.