Celestron motor Drives

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JeffersE
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Celestron motor Drives

Post by JeffersE »

I am new to astronomy and have recently bought a Celestron Omni 120mm on a CQ4 mount. I have also bought the dual axis motor drives for it and am having a problem with them. The problem is with the R.A. drive, it does not allow me to 'freewheel' when the motor is not powered. The slow motion knob is not moveable when the motor is not powered, I will have to disconnect it to get it to move. The instructions say take the motor apart, loosen the worm drive, well my motor does not have a worm drive in it, only normal gear wheels. Can anybody help please. JeffersE
Jeffers
Lady Isabella
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Re: Celestron motor Drives

Post by Lady Isabella »

With mine, I have to slacken the clutch knob by about one quarter turn,
this then allows the me to move the scope in R.A. by turning the slow motion knob.

If you want to use the motor drive again then the clutch knob needs turning back.
Lady Isabella
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Re: Celestron motor Drives

Post by Lady Isabella »

JeffersE - Please ignore what I just posted above,I thought your mount
was using the same motors as mine, but they are different.
Yes - it would appear that there is no clutch knob for the R.A. on this model.
Brian
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Re: Celestron motor Drives

Post by Brian »

Interestingly, the Celestron user manual and advertising blurb for the motors does state that clutches are included :?
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JeffersE
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Re: Celestron motor Drives2

Post by JeffersE »

The R.A motor is connected by a flexible tube. The Dec. motor has a clutch. I have no problems with the Dec motor I can use the slow motion knob and it moves perfectly with the mototr in place. The R.A on the other hand is solid when using the slow motion knob but does move when the motor is switched on. Thanks for the help so far. JeffersE
Last edited by JeffersE on Fri Dec 28, 2012 9:48 pm, edited 1 time in total.
Jeffers
Lady Isabella
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Re: Celestron motor Drives

Post by Lady Isabella »

Found this thread over on Stargazers:
http://stargazerslounge.com/topic/92829 ... or-drives/

It seems odd that Celestron fit a clutch on the Dec but not the R.A.
JeffersE
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Re: Celestron motor Drives

Post by JeffersE »

Thank you Lady Isabella the link to the stargazers lounge gave me the answer.
Jeffers
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