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    Default Celestron SLT motor repair



    Hi all, I posted some of the initial stages of this problem awhile ago in the beginner section, but decided to write an update in the proper sub forum.

    I had bought a used Celestron SLT 130 awhile back, and was having some trouble getting the GoTo system working. What seemed to be the problem was that the Alt motor was grinding away, tracking very poorly, and causing the initial alignment and subsequent positioning to malfunction. I opened a ticket with Celestron, who said (after a week or so) that my only option for getting the part replaced was a dealer in my country (Canada in my case). Query after query to local and online dealers got me the same answer, no warranty, no part. Some of them generously offered to sell me a new mount, however! All said their hands were tied by Celestron itself.

    So, it was looking pretty grim for my SLT. I decided to tear down the motor itself, and see what could be done. Removed the Alt motor, and opened the metal band that holds it together, destroying one of the flanges that hold it down in the process. Removed the top portion, with the circuit board, and peered inside to see the white plastic drive gear inside the larger housing. All I did was spin it around a few times, then align the top motor portion again. plugged the power lead in again and voila, no grinding sound, and it sounds much like the az motor. Put it all back together and it sounds good, although the band is now held down by duct tape.

    Not sure if it's actually going to track now, but waiting for a starry night to find out.

  2. #2
    sxinias's Avatar
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    Default Re: Celestron SLT motor repair

    Keeping fingers crossed that your repair works. One thing to be careful of is the gear on the motor shaft inside the reduction gearing case. It's a friction fit that can easily strip.
    SXINIAS

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    Default Re: Celestron SLT motor repair

    I found out after fixing my motor you can get a new one from Celestron for $23, and other places showed up for a little more $.
    Google the # on the motor/trans unit, I think it was like FAA-01 or so on mine.
    Mike
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