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YorkieGraham

REPLACEMENT AZIMUTH PIN

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I wonder if anyone can help me locate a replacement azimuth pin. I have stupidly managed to break the pin to my CG5. Hadn't realized how soft the metal thread is and was a little rough mounting the head onto the tripod. I have trawled the web but drawn a blank. I am hoping that I wont have to pay to have one machined up. Is the CG5 pin the same as a SW EQ5 pin if I manage to find one? Has anyone else been able to find a replacement? Suggestions gratefully received.

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You could get a stainless steel bolt that is only partially threaded and cut it to length if you know the thread.

Dave

Edited by Davey-T

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As Dave says above. I did just that using a bolt from Ripon engineering. In fact, if you send me the dimensions I may have it around somewhere and you can have it.

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Thanks guys. I had a bolt as you describe so have cut it down. It works but the adjustment bolts are a little short short because the original pin had a square section. There is only a small amount of adjustment. I will have to get some longer bolts now I guess! 

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Kim,

I believe he is referring to the Azimuth pin (see below) that sits in the tripod rather than the azimuth adjustment bolts which work against the azimuth pin in order to make adjustments in azimuth when polar aligning.

ff9721604aeb243cb24a2803fa7adc70.jpg

Sent from my iPhone using Tapatalk

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Thanks Felix - yes I did misunderstand Graham's requirement. I'll need to have a think about where he can get the tripod pin to control the azimuth. :)

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get a bolt that will screw in to the vacant hole, file 2 flats on it, screw on a nut and washer, then screw the bolt into the hole get the depth right and the flats in the right position then tighten up the nut and washer to lock it all in place.....

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Thanks guys. I had a bolt as you describe so have cut it down. It works but the adjustment bolts are a little short short because the original pin had a square section. There is only a small amount of adjustment. I will have to get some longer bolts now I guess! 

........similar to this maybe? and the $ sign says you may have to wait a few Days for delivery!  http://www.highpointscientific.com/telescope-accessories/replacement-parts-for-telescopes/celestron-spare-parts/celestron-alignment-pin-cg5gt-mounts-replacement-part

Edited by Charic

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Thanks guys. Charic thanks for the link finding a source for the correct part, I looked for ages and didn't find this. I have ordered some longer bolts now at 

http://www.ebay.co.uk/itm/121703584614?_trksid=p2060353.m2749.l2648&ssPageName=STRK%3AMEBIDX%3AIT 

so they should sort the problem for even less £3.81 I may order the correct part from the US though even so as I do like things to be right. Thanks again.

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Thanks guys. Charic thanks for the link finding a source for the correct part, I looked for ages and didn't find this. I have ordered some longer bolts now at

http://www.ebay.co.uk/itm/121703584614?_trksid=p2060353.m2749.l2648&ssPageName=STRK%3AMEBIDX%3AIT

so they should sort the problem for even less £3.81 I may order the correct part from the US though even so as I do like things to be right. Thanks again.

I'm a bit confused Graham, those are presumably adjustment bolts, I thought you needed the alignment pin?

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I generally refer to that componant as the north alignment peg / pin.

It is the same as the peg that the Skywatcher EQ3-2 / EQ5 / HEQ5 use but they are generally moulded into the mount heads with Skywatcher mounts as far as I recall.

If you have a bolt in that is too thin could you thread a few nuts onto it to make it thicker so that the two alignment adjustment bolts on the mount head can reach it and bear against it ?

As far as I know the peg / pin does nothing other than offer something solid for those 2 bolts to bear agains to that precise N alignment can be made.

For visual use I've used a CG5 without a N peg of any sort in place and aligned by eye. It was accurate enough for visual observing.

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I generally refer to that componant as the north peg.

It is the same as the peg that the Skywatcher EQ3-2 / EQ5 / HEQ5 use but they are generally moulded into the mount heads with Skywatcher mounts as far as I recall.

The official name seems to be 'alignment pin' John, although I'm with you, North pin to me.

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Anyone considering doing any business tomorrow in the USA - Monday 12th, Oct. - please be aware that's a holiday - Colombus Day.

Wish I had a time-machine (other than my telescopes),

Dave

Edited by Dave In Vermont

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I'm a bit confused Graham, those are presumably adjustment bolts, I thought you needed the alignment pin?

Sorry to cause confusion. I did need the alignment pin but I have now screwed a M8 bolt in place of a pin, which has the top section unthreaded. Because the new pin is narrower than the original post, which had a wider  rectangular upper section for the adjustment screws to push against. There is little adjustment left now in the original adjustment bolts. I therefore need longer adjustment bolts to give me more throw, if that makes sense.

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You'd need to check, but this seems to be a link to a UK source for them

http://www.f1telescopes.co.uk/product-category/telescope-spares/celestron-advanced-gt-cg-5-spares/

I'm sure FLO could source one too if needed

Thanks for this UK link I will check it out and see if they have them in stock. There didn't seem to be any images of spares when I checked it out but the description seems correct and the GT CG5 is basically the same as my mount but with goto.  Thanks to everyone who posted a suggestion, much appreciated.

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