Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

  • Announcements

    sgl_imaging_challenge_banner_solar.jpg

     

tooth_dr

Should I strip my EQ6

Recommended Posts

tooth_dr    481

This is what weeks of rain does to me...

It's given over 10 years of service, and is aytoguiding fine, but it's just getting stiff to rotate the dec axis and there is a large amount of backlash.

I'm thinking about doing the Rowan belt mod and cleaning and regreasing it all. Do you think the bearings should be done too?

Or leave well alone? I just hate to leave things that are clearly worsening and risk doing more harm?!

 

Cheers

Adam. 

Share this post


Link to post
Share on other sites
spillage    258

My advice would be to remove clean and re grease the bearing and see it that helps first. You do need to take your time when putting the bottom dec bearing back in paying attention to tightening up the collar to ensure the bearing is level.

I did mine just really to see how it was put together.

hth

Spill.

Share this post


Link to post
Share on other sites
LightBucket    127

To be honest even after ten years the bearings have not had that much use if you think about it, they are not under any real pressure....

I did the belt mod and cleaned and re greased, but left the bearings in place, they looked as good as new, and mine is around the same age, one of the early white EQ6 mounts. :)

Share this post


Link to post
Share on other sites
LightBucket    127
2 minutes ago, spillage said:

My advice would be to remove clean and re grease the bearing and see it that helps first. You do need to take your time when putting the bottom dec bearing back in paying attention to tightening up the collar to ensure the bearing is level.

I did mine just really to see how it was put together.

hth

Spill.

How tight did you do that collar up, that was the one issue I was not sure about as I forgot to mark before I took apart, I did mine so the slack was all out of the bearing, and then another 1/8 of a turn, it will go another half turn if I wanted, but don’t think that would have helped, just maybe caused a bit of stiction...

Share this post


Link to post
Share on other sites
spillage    258

I am sure I did it up tight then backed it off either 1/4 or 1/2 a turn (was a while ago so cannot really remember). It is very easy to know if its too tight.

Share this post


Link to post
Share on other sites
LightBucket    127
1 minute ago, spillage said:

I am sure I did it up tight then backed it off either 1/4 or 1/2 a turn (was a while ago so cannot really remember). It is very easy to know if its too tight.

So how would you know if too tight, mine seems ok but good to know so can check..

Share this post


Link to post
Share on other sites
spillage    258

I just attached my scope and gave it spin and adjusted as I thought best. I had the mount on the tripod when I stripped the dec.

  • Like 1

Share this post


Link to post
Share on other sites
spillage    258

I used a plastic ice-cream tube with paraffin and an old toothbrush. I am sure proper degreaser would have been a better choice.

  • Like 1

Share this post


Link to post
Share on other sites
spillage    258

Well this has now done it for me. I going home tonight after work to clear a nice space in the workshop to strip my mount and fit the belt mod.

It's the thought of spending all that time having to redo PA that's been holding me back.

So this is a heads up to anyone in the Somerset area because the next few nights are going to be crystal clear and probably the clearest nights in years...

Now where did I put that lump hammer??

Spill.

  • Haha 1

Share this post


Link to post
Share on other sites
spillage    258

There was also a member on here from the netherlands (I think) who spent the time making several videos on the strip down/rebuild and put them up on youtube. It includes warts and all so very good to watch and made me smile but fair play to putting the time and effort in.

youtube

  • Like 1

Share this post


Link to post
Share on other sites
spillage    258

Quick update. I got home last night and spent a couple hours fitting my belt mod. Just need to run the power on it tonight to fully test but all went well.

I did notice that my dec was a little tight so on the rebuild I adjusted this better. Will get more of a feel once its back on the pier and stable.

Was a bit lazy and did not fully stip down the dec but might gain access to the dec worm and apply some grease tonight.

Hopefully this is the last time I need to do this for few years..

Share this post


Link to post
Share on other sites
LightBucket    127
2 hours ago, spillage said:

Quick update. I got home last night and spent a couple hours fitting my belt mod. Just need to run the power on it tonight to fully test but all went well.

I did notice that my dec was a little tight so on the rebuild I adjusted this better. Will get more of a feel once its back on the pier and stable.

Was a bit lazy and did not fully stip down the dec but might gain access to the dec worm and apply some grease tonight.

Hopefully this is the last time I need to do this for few years..

Can I ask, if you did not strip down the Dec axis, how did you fit the belt mod to it..??

Share this post


Link to post
Share on other sites
tooth_dr    481

When I was removing the worn adjustment screw on the dec axis it was tight, never thought much about it.  When I was adjusting it last night it stripped the bottom three threads so I cant adjust it properly.  Going to rethread it slightly bigger and add a new grub screw, if that goes as planned I'll have it up and running tonight!

Share this post


Link to post
Share on other sites
spillage    258

@paul mc c you would find it easier than you think. Its quite a basic mount at heart. I like to see how stuff works. I did find out tonight that I had set my worm gears way too tight so had to spend another 1/2 hour fettling.

@tooth_dr hope things have gone smoothly for you this evening.

Share this post


Link to post
Share on other sites
tooth_dr    481
10 minutes ago, spillage said:

@paul mc c you would find it easier than you think. Its quite a basic mount at heart. I like to see how stuff works. I did find out tonight that I had set my worm gears way too tight so had to spend another 1/2 hour fettling.

@tooth_dr hope things have gone smoothly for you this evening.

Interesting evening. Got the new hole threaded and a nice flat head bolt to adjust the worm gear. 

 

On in a separate note I seem to have not tightened the wee grub screws on the small gold cog on the RA axis *facepalm*

So that's a strip down tomorrow of the RA axis. 

So to answer my thread title - NO

Edited by tooth_dr
  • Sad 1

Share this post


Link to post
Share on other sites
LightBucket    127
30 minutes ago, spillage said:

@paul mc c you would find it easier than you think. Its quite a basic mount at heart. I like to see how stuff works. I did find out tonight that I had set my worm gears way too tight so had to spend another 1/2 hour fettling.

@tooth_dr hope things have gone smoothly for you this evening.

How could you tell the worm gear was too tight, just wondering how this is worked out....

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

×