Re: [ap-gto] 600 GTO stalling


Feb 27 3:50 PM

 


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#24202 Feb 27 3:50 PM

Hello



I have a 600 GTO that is about 10 years old. I have used it very little

because I got a 900 GTO right after the 600.

I had the 600 out this week for the first time in a year or so and it

is very stiff in RA and the yellow light comes on and it stops tracking

(although I still hear some motor sounds). It was about 25F. The

problem comes and goes. I have a fully charged battery and the load is

balanced. It is stiff even with the clutch disengaged and hard to

determine balance. It is a lot better when inside and warm so I am

guessing it has stiff lubricants. Can I fix this at home or must I send

the unit in for repair. Is there another explanation for the drag?



Dale



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#24209 Mar 1, 2009

Dale --



Think of the RA axis as having 3 pieces: the fixed piece (with the motor and worm), the worm wheel, and the part that carries the telescope. The motor only sees motion between the fixed part and the worm wheel, while the clutch controls the motion between the worm wheel and the part that carries the DEC axis and telescope.



None of this is to say that you don't have stiff lubricants; just that stiff movement with the clutch loose is not measuring the stiffness of the lubricants between the worm and the worm wheel (but rather that between the worm wheel and the part that carries the DEC axis and telescope).



Cheers,

-- Jeff.





From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] On Behalf Of Dale Ireland

Sent: Friday, February 27, 2009 11:51 PM

To: ap-gto@yahoogroups.com

Subject: [ap-gto] 600 GTO stalling





Hello



I have a 600 GTO that is about 10 years old. I have used it very little

because I got a 900 GTO right after the 600.

I had the 600 out this week for the first time in a year or so and it

is very stiff in RA and the yellow light comes on and it stops tracking

(although I still hear some motor sounds). It was about 25F. The

problem comes and goes. I have a fully charged battery and the load is

balanced. It is stiff even with the clutch disengaged and hard to

determine balance. It is a lot better when inside and warm so I am

guessing it has stiff lubricants. Can I fix this at home or must I send

the unit in for repair. Is there another explanation for the drag?



Dale







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



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#24232 Mar 2, 2009

In a message dated 2/27/2009 5:51:11 PM Central Standard Time,

direland@... writes:



> I had the 600 out this week for the first time in a year or so and it

> is very stiff in RA and the yellow light comes on and it stops tracking

> (although I still hear some motor sounds). It was about 25F. The

> problem comes and goes. I have a fully charged battery and the load is

> balanced. It is stiff even with the clutch disengaged and hard to

> determine balance. It is a lot better when inside and warm so I am

> guessing it has stiff lubricants. Can I fix this at home or must I send

> the unit in for repair. Is there another explanation for the drag?

>



Being stiff with the clutch loose and having it stall are two different

issues. The clutch looseness or tightness has nothing to do with the load on the

motor.



If you want to have the mount checked out and overhauled, please contract

Christine at AP for a return number.



Rolando





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

#24233 Mar 2, 2009

In a message dated 3/1/2009 10:14:39 AM Central Standard Time,

direland@... writes:



> Yes I understand but there must be some lubricants in the bearings. I don't

> see any dampen adjustment like the 900 has but the effect is the same.

>



There are no damping adjustments on the 900 in the GTO versions.



Rolando





**************

A Good Credit Score is 700 or Above. See yours in just 2

easy steps!

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