Re: 1200GTO issues


Mar 9, 2013

 


----------------------------

#39830 Mar 9, 2013

Hello-



I am new to this group, and a new owner of an old-stock 1200GTO. After powering the unit up for the first time this evening, it appears as though the declination drive has seized. I initially got the yellow overload indicator. Now the motor turns but the dec axis does not. Any ideas what could be wrong?



THanks

Brian L



----------------------------

#39835 Mar 10, 2013

Yes. The declination worm isn't rotating even though the spur gears are. The dec axis feels a little stiff compared to the RA axis when turned by hand with the clutches disengaged. I thought about removing the dec worm block to see if the worm will turn when disengaged from the gear, but I am afraid that I won't be able to get it to get it back into place properly.



Thanks

--- In ap-gto@yahoogroups.com, "jockey_ca" jockey_ca@...> wrote:

>

> Are the Dec axis clutches tightened?

> Don

>

> --- In ap-gto@yahoogroups.com, "B" brian_lopresti@> wrote:

> >

> > Hello-

> >

> > I am new to this group, and a new owner of an old-stock 1200GTO. After powering the unit up for the first time this evening, it appears as though the declination drive has seized. I initially got the yellow overload indicator. Now the motor turns but the dec axis does not. Any ideas what could be wrong?

> >

> > THanks

> > Brian L

> >

>



----------------------------

#39836 Mar 10, 2013

P.S.- I can't turn the dec worm by hand by twisting the stem... the RA axis worm turns freely.



--- In ap-gto@yahoogroups.com, "B" brian_lopresti@...> wrote:

>

> Yes. The declination worm isn't rotating even though the spur gears are. The dec axis feels a little stiff compared to the RA axis when turned by hand with the clutches disengaged. I thought about removing the dec worm block to see if the worm will turn when disengaged from the gear, but I am afraid that I won't be able to get it to get it back into place properly.

>

> Thanks

>

> --- In ap-gto@yahoogroups.com, "jockey_ca" jockey_ca@> wrote:

> >

> > Are the Dec axis clutches tightened?

> > Don

> >

> > --- In ap-gto@yahoogroups.com, "B" brian_lopresti@> wrote:

> > >

> > > Hello-

> > >

> > > I am new to this group, and a new owner of an old-stock 1200GTO. After powering the unit up for the first time this evening, it appears as though the declination drive has seized. I initially got the yellow overload indicator. Now the motor turns but the dec axis does not. Any ideas what could be wrong?

> > >

> > > THanks

> > > Brian L

> > >

> >

>



----------------------------

#39841 Mar 10, 2013

Hi,



change the RA cable to the DEC motor. If it turns than the cable is damaged.



Konstantin





Konstantin v. Poschinger



Hammerichstr. 5

22605 Hamburg

040/8805747

0171 1983476



Am 10.03.2013 um 13:53 schrieb B:

> Yes. The declination worm isn't rotating even though the spur gears are. The dec axis feels a little stiff compared to the RA axis when turned by hand with the clutches disengaged. I thought about removing the dec worm block to see if the worm will turn when disengaged from the gear, but I am afraid that I won't be able to get it to get it back into place properly.

>

> Thanks

>

> --- In ap-gto@yahoogroups.com, "jockey_ca" jockey_ca@...> wrote:

> >

> > Are the Dec axis clutches tightened?

> > Don

> >

> > --- In ap-gto@yahoogroups.com, "B" brian_lopresti@> wrote:

> > >

> > > Hello-

> > >

> > > I am new to this group, and a new owner of an old-stock 1200GTO. After powering the unit up for the first time this evening, it appears as though the declination drive has seized. I initially got the yellow overload indicator. Now the motor turns but the dec axis does not. Any ideas what could be wrong?

> > >

> > > THanks

> > > Brian L

> > >

> >

>

>







[Non-text portions of this message have been removed]



----------------------------

#39842 Mar 10, 2013

After reading the rest of the thread, it sounds like the Dec motor / gear box / drive worm has been forced tightly against the Dec gear during shipping. Get on the AP website, go to the technical section and have a look for a pdf about how to adjust gear mesh. Read that through and it should all become clear. bottom line is that you will likely have to undo two hex bolts slightly to re-adjust the gear mesh back to where it should be. It is easy to do.

--- In ap-gto@yahoogroups.com, "B" brian_lopresti@...> wrote:

>

> Hello-

>

> I am new to this group, and a new owner of an old-stock 1200GTO. After powering the unit up for the first time this evening, it appears as though the declination drive has seized. I initially got the yellow overload indicator. Now the motor turns but the dec axis does not. Any ideas what could be wrong?

>

> THanks

> Brian L

>



----------------------------

#39843 Mar 10, 2013

I'd take the gearbox end cover off, and take a look inside.

You'll be able to see what's turning and what's not.

It's possible that the grubscrew (setscrew) that holds the final gear on to the end of the worm has worked loose, meaning the servo motor is driving everything up to the last gear but not the worm

Check that little grub screw is snugged up.

Dave.

--- In ap-gto@yahoogroups.com, "observe_m13" JunkMailGoesHere@...> wrote:

>

> After reading the rest of the thread, it sounds like the Dec motor / gear box / drive worm has been forced tightly against the Dec gear during shipping. Get on the AP website, go to the technical section and have a look for a pdf about how to adjust gear mesh. Read that through and it should all become clear. bottom line is that you will likely have to undo two hex bolts slightly to re-adjust the gear mesh back to where it should be. It is easy to do.

>

> --- In ap-gto@yahoogroups.com, "B" brian_lopresti@> wrote:

> >

> > Hello-

> >

> > I am new to this group, and a new owner of an old-stock 1200GTO. After powering the unit up for the first time this evening, it appears as though the declination drive has seized. I initially got the yellow overload indicator. Now the motor turns but the dec axis does not. Any ideas what could be wrong?

> >

> > THanks

> > Brian L

> >

>







----------------------------

#39845 Mar 10, 2013

Brian

Check to see that the Allen screw on the spur gear attached to the worm isn't loose. Check all the gears for loose set screws.

Don

--- In ap-gto@yahoogroups.com, "B" brian_lopresti@...> wrote:

>

> Yes. The declination worm isn't rotating even though the spur gears are. The dec axis feels a little stiff compared to the RA axis when turned by hand with the clutches disengaged. I thought about removing the dec worm block to see if the worm will turn when disengaged from the gear, but I am afraid that I won't be able to get it to get it back into place properly.

>

> Thanks

>

> --- In ap-gto@yahoogroups.com, "jockey_ca" jockey_ca@> wrote:

> >

> > Are the Dec axis clutches tightened?

> > Don

> >

> > --- In ap-gto@yahoogroups.com, "B" brian_lopresti@> wrote:

> > >

> > > Hello-

> > >

> > > I am new to this group, and a new owner of an old-stock 1200GTO. After powering the unit up for the first time this evening, it appears as though the declination drive has seized. I initially got the yellow overload indicator. Now the motor turns but the dec axis does not. Any ideas what could be wrong?

> > >

> > > THanks

> > > Brian L

> > >

> >

>



----------------------------

#39875 Mar 11, 2013

Your Dec axis motor box has been pushed so tightly into mesh that the motor cannot turn the worm. This most likely happened during shipping - the previous owner did not properly pack the mount and during shipment the motor box received severe blows that pushed it into the worm wheel.



Back the motor box off so that the mesh is fully engaged but you can still turn the gear. Instructions for setting the worm mesh are on our website.



Rolando





-----Original Message-----

From: B brian_lopresti@...>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Sun, Mar 10, 2013 8:33 am

Subject: [ap-gto] Re: 1200GTO issues





P.S.- I can't turn the dec worm by hand by twisting the stem... the RA axis

worm turns freely.



--- In ap-gto@yahoogroups.com, "B" brian_lopresti@...> wrote:

>

> Yes. The declination worm isn't rotating even though the spur gears are.

The dec axis feels a little stiff compared to the RA axis when turned by hand

with the clutches disengaged. I thought about removing the dec worm block to

see if the worm will turn when disengaged from the gear, but I am afraid that I

won't be able to get it to get it back into place properly.

>

> Thanks

>

> --- In ap-gto@yahoogroups.com, "jockey_ca" jockey_ca@> wrote:

> >

> > Are the Dec axis clutches tightened?

> > Don

> >

> > --- In ap-gto@yahoogroups.com, "B" brian_lopresti@> wrote:

> > >

> > > Hello-

> > >

> > > I am new to this group, and a new owner of an old-stock 1200GTO. After

powering the unit up for the first time this evening, it appears as though the

declination drive has seized. I initially got the yellow overload indicator.

Now the motor turns but the dec axis does not. Any ideas what could be wrong?

> > >

> > > THanks

> > > Brian L

> > >

> >

>









---------------



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[Non-text portions of this message have been removed]



----------------------------

#39881 Mar 11, 2013

Thanks, Roland- that was the issue. The mount works brilliantly now. The mount was extremely well packed and has never been used- it has remained in its original shipping boxes for nearly a decade. It was only unpacked to photograph prior to shipping it to me. I expected there to be some issues with a mount sitting this long, but other than this little adjustment the mount seems to be working perfectly.



I'm new to AP mounts, so I'm still learning the basics- but this mount makes all the other mounts I've owned in the past seem like toys.





--- In ap-gto@yahoogroups.com, chris1011@... wrote:

>

>

> Your Dec axis motor box has been pushed so tightly into mesh that the motor cannot turn the worm. This most likely happened during shipping - the previous owner did not properly pack the mount and during shipment the motor box received severe blows that pushed it into the worm wheel.

>

> Back the motor box off so that the mesh is fully engaged but you can still turn the gear. Instructions for setting the worm mesh are on our website.

>

> Rolando

>

>

> -----Original Message-----

> From: B brian_lopresti@...>

> To: ap-gto ap-gto@yahoogroups.com>

> Sent: Sun, Mar 10, 2013 8:33 am

> Subject: [ap-gto] Re: 1200GTO issues

>

>

> P.S.- I can't turn the dec worm by hand by twisting the stem... the RA axis

> worm turns freely.

>

>

> --- In ap-gto@yahoogroups.com, "B" brian_lopresti@> wrote:

> >

> > Yes. The declination worm isn't rotating even though the spur gears are.

> The dec axis feels a little stiff compared to the RA axis when turned by hand

> with the clutches disengaged. I thought about removing the dec worm block to

> see if the worm will turn when disengaged from the gear, but I am afraid that I

> won't be able to get it to get it back into place properly.

> >

> > Thanks

> >

> > --- In ap-gto@yahoogroups.com, "jockey_ca" jockey_ca@> wrote:

> > >

> > > Are the Dec axis clutches tightened?

> > > Don

> > >

> > > --- In ap-gto@yahoogroups.com, "B" brian_lopresti@> wrote:

> > > >

> > > > Hello-

> > > >

> > > > I am new to this group, and a new owner of an old-stock 1200GTO. After

> powering the unit up for the first time this evening, it appears as though the

> declination drive has seized. I initially got the yellow overload indicator.

> Now the motor turns but the dec axis does not. Any ideas what could be wrong?

> > > >

> > > > THanks

> > > > Brian L

> > > >

> > >

> >

>

>

>

>

---------------

>

> To UNSUBSCRIBE, or for general information on the ap-gto list

> see groups.yahoo.com/group/ap-gtoYahoo! Groups Links

>

>

>

>

>

>

>

> [Non-text portions of this message have been removed]

>







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