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iOptron SkyGuider Pro RA clutch doesn't fully lock

astrophotography mount
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#1 jason3816

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Posted 26 October 2020 - 09:47 PM

I recently bought IOptron Skyguider Pro and used it for a few times with good results. Now I noticed that that the RA clutch doesn't fully lock in place even after I tried to lock it in really hard. It's not completely broken -- it is somewhat stable and can hold a balanced load, but if I try to rotate it with some force or attached a heavy load on one end it still moves. This is a short video demonstrating this (https://youtu.be/tfX1C8lqgkY)

 

I've seen this post but not sure if it's the same issue. As a beginner, I wonder what's the desired behavior for the RA clutch? Is it designed to not move at all once it's locked in, or it is still supposed to move a bit with some heavy force applied? If it is designed to not move at all, how does it actually move to track the stars?

 

Really appreciate any help!


Edited by jason3816, 27 October 2020 - 12:28 AM.


#2 scadvice

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Posted 26 October 2020 - 11:19 PM

Mine will move also with mild force. I've not had it move during use but it could happen if I don't balance it and get the clutch tight enough. Balance seems to be the key.


Edited by scadvice, 26 October 2020 - 11:20 PM.

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#3 limeyx

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Posted 26 October 2020 - 11:39 PM

Could it possibly be "RA play" ?

I had to tighten mine

 

http://www.ioptron.u...SGP_RA_Play.pdf



#4 jason3816

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Posted 31 October 2020 - 11:40 PM

Could it possibly be "RA play" ?

I had to tighten mine

 

http://www.ioptron.u...SGP_RA_Play.pdf

What did you tighten? The mounting adapter or RA worm



#5 galacticinsomnia

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Posted 01 November 2020 - 01:00 AM

I have found with mine that as mentioned, will move or stay still.  You want the clutch to move, to protect the gears, to what extent is the variable..  Mine doesn't move with just the metal bar off to one side.  If you tighten the clutch down with your hand, with nothing mounted on the on it, and try to turn it with your hand, you should find it, not that easy to do, once a load is on it, there is a lot more leverage and weight working with you or against you. 

 

Good luck.  Avoid taking it apart unless completely necessary.

 



#6 limeyx

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Posted 02 November 2020 - 10:44 AM

What did you tighten? The mounting adapter or RA worm

For me, just the outside part (mounting adapter I guess)




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