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Hi Chris.
I assume the adjustment tool you refer to is the focuser.
You might just have to turn it quite a way in either direction to get focus.
Turn it all the way in one direction then all the way in the other, if necessary, until the object comes into focus.
Don't confuse the focuser knob with the mirror lock knob.
gb.
Edit: As David says, reading the manual will make things a lot easier.
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