Re: Loud Clicking noise from RA motor #EXOS2 #VIDEO


What Wes said...   The motor whirr is normal, but the ticking is not.  Should be easy to remedy, though.

On Mon, Sep 21, 2020, at 10:04, Wes Mcdonald wrote:

No that is not right.   Something is slipping or some thing.  

1.  Suggest you pull it apart and check the set screws that hold the pulleys on the shafts of the worm and the motor.  If you look in the files section of the Main subgroup you will find a document by bob hoskins that outlines how to get thing s apart and do adjustments.  Lots of stuff in there so just do the things related to opening the motor case to gain access to the pulley set screws and maybe make sure the belt is not snagging in the case .  

Perhaps others have resolved an issue like this?  If so chime in!


On Mon, Sep 21, 2020 at 9:30 AM <Symon@...> wrote:
Hi I have just received my EXOS2-PMC8. It makes a quite pronounced clicking noise from the RA motor - mp4 attached. You can hear it at the start of the attached movie file. Is this normal - it is with an empty mount, i.e. no scope, just for testing but it makes the noise at all times.

Many thanks,


Wes, Southport NC
EXos2-GT PMC-8, iExos 100
ES ED 127, 10" LX200GPS+wedge, Astro-Tech 8" Newt, ETX-90, 60mm no-name guide scope ~ 260mm FL
Polemaster, Orion ST-80 and SAG, ZWO 290MM, D5300 astro modified
Nina, Bootcamped Mac Mini control computer, RDP to iMAC
110 amp hour lead acid deep discharge battery for field power
Electrical Engineer, Retired

Mounts: ES PMC-8 EXOS2
Scopes: SV 102EDT, ZWO 60/280 Guide
Cameras:  Nikon D5300, Altair GPCAM2 290M
Software: ASCOM, CdC, AstroTortilla, BYN Pro, Sharpcap, PHD2
Computer:  Thinkpad x230, Win7Pro/64

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