Return to the Cloudy Nights Telescope Reviews home page


Telescope Specific Forums >> Celestron NexStar

Pages: 1
Agatheron
super member


Reged: 11/03/10

Loc: Calgary, Alberta, Canada
Help! Am I burning out my Az motor?? new
      #6189596 - 11/11/13 10:14 PM

Hi Everyone,

I was giving my new StarSense Autoalign a test run on my CPC800 tonight. It works great, I'm very happy with its pointing accuracy. Uranus was an easy find, first try.

However, something happened tonight that has me worried about the health of my scope. I've had a few similar issues with it, earlier, but I thought they might be poor battery issues. Tonight pretty much confirmed that it isn't power issues, as I've been using wall power for the past several times I've been using it.

Anyway, as it was swinging north the power began to flicker, and the motor sounded funny. It still got to its point because of the auto-align, but when I leaned down to look through the eyepiece, I could distinctly smell the acrid odour of unhappy electrical stuff. The scope was still operating fine, so computer-wise nothing is wrong.

I sniffed around, and the smell was coming out of the base around the various plug holes. I immediately shut everything down and brought it inside. It wasn't a strong smell, but enough to have me worried that the bearings might be seized, and/or the Az motor isn't working properly.

Anyway, any advice as to how to proceed? I'm thinking of replacing the bearings in the base of the scope, but should I look at replacing the motor as well if need be?


Post Extras: Print Post   Remind Me!   Notify Moderator  
rmollise
Postmaster
*****

Reged: 07/06/07

Re: Help! Am I burning out my Az motor?? new [Re: Agatheron]
      #6190127 - 11/12/13 08:25 AM

Forget messing with the bearings. Call Celestron.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Agatheron
super member


Reged: 11/03/10

Loc: Calgary, Alberta, Canada
Re: Help! Am I burning out my Az motor?? new [Re: rmollise]
      #6190412 - 11/12/13 11:06 AM

I'll call them later today. Here's one question though, if I overtightened the clutch, would this cause motor strain?

Post Extras: Print Post   Remind Me!   Notify Moderator  
rmollise
Postmaster
*****

Reged: 07/06/07

Re: Help! Am I burning out my Az motor?? new [Re: Agatheron]
      #6191062 - 11/12/13 04:22 PM

Nope...shouldn't.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Agatheron
super member


Reged: 11/03/10

Loc: Calgary, Alberta, Canada
Re: Help! Am I burning out my Az motor?? new [Re: rmollise]
      #6191307 - 11/12/13 06:22 PM

I was wondering, as some of the information on the Celestron support site itself warns about tightening the clutch too much can cause motor strain.

Post Extras: Print Post   Remind Me!   Notify Moderator  
rmollise
Postmaster
*****

Reged: 07/06/07

Re: Help! Am I burning out my Az motor?? new [Re: Agatheron]
      #6192984 - 11/13/13 04:30 PM

Well, if you have your clutch very tight, you could try backing it off, I reckon.

Post Extras: Print Post   Remind Me!   Notify Moderator  
rookie
Good Night Nurse
*****

Reged: 01/14/06

Loc: St. Petersburg, FL
Re: Help! Am I burning out my Az motor?? new [Re: rmollise]
      #6193618 - 11/13/13 10:18 PM

You could call All Star Telescopes in Didsbury. The owner is pretty knowledgeable and helpful.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Agatheron
super member


Reged: 11/03/10

Loc: Calgary, Alberta, Canada
Re: Help! Am I burning out my Az motor?? new [Re: rookie]
      #6193736 - 11/13/13 11:19 PM

All-Star is where I bought the SSA in person. I'll give Ken a shout and ask as well. I'll try things next time with a not-so-tight clutch, and if I get some more strain issues, then I'll know if it is more serious!

Another thought: the scope is nearly 3 years old since I purchased it. It has had light to moderate use. Is it time to re grease the gears?


Post Extras: Print Post   Remind Me!   Notify Moderator  
Radiostar
professor emeritus


Reged: 10/16/08

Loc: Thunder Bay, Ontario
Re: Help! Am I burning out my Az motor?? [Re: Agatheron]
      #6199395 - 11/17/13 04:49 AM

I am going to take a (very) wild stab in the dark and say you have an intermittent electrical connection that is arcing as it makes and breaks the connection. I don't think the bearings would produce that electrical acrid smell. Unless you are familiar with electronics I would let a pro look at it first.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1


Extra information
6 registered and 16 anonymous users are browsing this forum.

Moderator:  Brian Risley, panhard, mayidunk 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled


Thread views: 699

Jump to

CN Forums Home




Cloudy Nights Sponsor: Astronomics