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67 Views • Dec 28, 2022 • Click to toggle off description
My IOptron CEM 26 mount has developed a wobble when the clutch is fully engaged - as can be seen in this video. This is a recent development. I have a note into IOptron Support about this but have not had any response as of yet.

Have you run into this problem?
Do you know the cause?
Do you know the fix?

Thanks!
Pat
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Genre: Science & Technology
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Uploaded At Dec 28, 2022 ^^


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RYD date created : 2022-12-28T16:07:45.671029Z
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32 Comments

Top Comments of this video!! :3

@johnmacintosh9474

1 year ago

The same thing happened with my CEM40. When iOptron finally responded to my query, they said it needed a clutch adjustment, directions available in the online manual. NO! Not the problem. I removed the cap to the iPolar and located 4 screws about 2 inches deep inside the housing. All 4 were loose, and tightening them solved the problem. On the CEM26, from studying pictures of the mount, there are 2 screws at the base of the mount just forward of the polar alignment scope or iPolar. Tightening those 2 looks like it would accomplish the same thing.

10 |

@donner5545

1 year ago

To add to other comments here: remove the counterweight shaft and front plate, and check the 4 grub screws that connect the ra gear to the shaft. I had noticed this play in my ra axis and then ACCODENTALLY DROPPED my mount head when removing it from the tripod. Talk about having a bad day! The play in the ra axis went from what's shown in this video to 10x worse... not exaggerating! Followed the guide in the dropbox link and found no play in the worm gear mechanism, but I saw the 4 grub screws and found they were miraculously all loose! Tightened them up and there is ABSOLUTELY 0 play in the ra axis anymore! Mount moves from +90 to -90 degrees from home position now with no problems! No other damage from the drop, thankfully!

3 |

@TravelEcstasy

1 year ago

Did what @johnmacintosh9474 has suggested - but to no avail - the screws were all tight.
Also, the main screw on the counterweight shaft was eccentrically placed, so the Counterweight shaft is ALWAYS to one side, hence the telescope can never be balanced! :(  Ioptron has not responded to any query, not their local dealer, except asking me to send them more mails, So I had to enlarge the hole to bring the shaft to the centre, but now the whole shaft shifts when it is at a substantial  angle

1 |

@alsajooo

2 years ago

Mine has also started doing this.

3 |

@TheMje1963

1 year ago

I've seen all kinds of problems these CEM mounts, I have a CEM70 that sits in it's case because of issues that iOptron was unable to fix so since then I don't recommend anyone getting a center line mount of this nature. Seems the worm gears either ware out too quickly or won't stay messed like they should

1 |

@TravelEcstasy

1 year ago

Same with my CEM40 And the Ioptron people are totally shameless - ZERO Customer support.

1 |

@noahhussein

1 year ago

I send mines in they said the ring gear was getting loose and they adjusted to ra a dec gear meshing

1 |

@patplunkett8525

1 year ago

Can someone (please) post the fix for this???

1 |

@rvoykin

1 year ago

It’s the RA Shuffle 😂

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