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tyler73
Joined: 12 Oct 2011
Posts: 15
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 Posted: Sun Oct 30, 2011 6:48 pm Post subject: Helios 44-2. How to dismount? |
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tyler73 wrote:
Hello everyone,
I bought a Helios 44-2 (payed 8 Euro) that have the focus ring stuck. I have removed the focus ring
I have put WD-40 lubrificant here:
The focus ring is unlocked, but only for a very short, goes on and back for about 1mm.
I tried to unscrew the focusing block (turning clockwise), but does not unscrew.
I wrong? Is this the correct procedure? Could the gear focus broken?
There is another way to dismount? |
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revers
Joined: 13 May 2010
Posts: 574
Location: In the country just north of Toronto Canada
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| Posted: Sun Oct 30, 2011 9:05 pm Post subject: |
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revers wrote:
I cannot help with the assembly but I wish to advise that WD 40 is NOT a lubricant, the WD stands for water displacer.
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Lloydy
Joined: 02 Sep 2009
Posts: 7794
Location: Ironbridge. UK.
Expire: 2022-01-01
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| Posted: Sun Oct 30, 2011 10:19 pm Post subject: |
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Lloydy wrote:
http://mrpom.multiply.com/photos/album/75/Helios_442_58mm
This might help ?
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tyler73
Joined: 12 Oct 2011
Posts: 15
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| Posted: Mon Oct 31, 2011 3:49 pm Post subject: |
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tyler73 wrote:
Thanks Lloydy, very understandable procedure.
To dismantle the helicoid the steps are: first dismantle the focus ring and then unscrew the helicoid?
My helicoid is stuck does not go forward or backward (only for about 1mm).
There is no other way to dismount? The only thing I can do is force to unscrew? |
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Lightshow
Joined: 04 Nov 2011
Posts: 3666
Location: Calgary
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| Posted: Fri Nov 04, 2011 2:45 am Post subject: Re: Helios 44-2. How to dismount? |
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Lightshow wrote:
| tyler73 wrote: |
Hello everyone,
I bought a Helios 44-2 (payed 8 Euro) that have the focus ring stuck. I have removed the focus ring
The focus ring is unlocked, but only for a very short, goes on and back for about 1mm.
I tried to unscrew the focusing block (turning clockwise), but does not unscrew.
I wrong? Is this the correct procedure? Could the gear focus broken?
There is another way to dismount? |
The first thing I'd do is remove the optical block, turn the front half(which contains both aperture rings) CCW to remove it,
set it a side to protect it from harm(there is also a spacer that should stay with the optics).
the the part you were trying to loosen, requires a ccw rotation, since you are stuck at infinity, I would take that off as a last step, as there are fine threads under it that can be damaged if you require more force to separate the helicoid, I would mark a location mark that will help 'clock' the "DOF markings ring/skirt" to it's original spot, then remove the 3 tiny screws holding the DOF ring in place, that will give you access to the helicoid, now you can soak the helicoid in solvent and hopefully loosen it up to rotate it(extend it) now you can remove the retaining ring that you were having issues with(ccw) mark the orientation where the 2 halves of the helicoid separate to make rejoining them easy.
I posted a quick guide here:
www.fredmiranda.com/forum/topic/1047535
I hope that helps.
(wow posting a simple link is such a huge PITA, it looks fine in preview, but when I click submit it changes) |
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fuzzywuzzy
Joined: 18 Dec 2010
Posts: 1258
Location: Down East, Canada, eh?
Expire: 2013-11-30
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| Posted: Fri Nov 04, 2011 11:21 am Post subject: Re: Helios 44-2. How to dismount? |
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fuzzywuzzy wrote:
| Lightshow wrote: |
| (wow posting a simple link is such a huge PITA, it looks fine in preview, but when I click submit it changes) |
As an antispam measure, a new user's first post can't include links.
Now you'll be able to post links without fuss.
Welcome aboard!
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peterqd
Joined: 28 Feb 2007
Posts: 7448
Location: near High Wycombe, UK
Expire: 2014-01-04
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| Posted: Fri Nov 04, 2011 11:26 am Post subject: Re: Helios 44-2. How to dismount? |
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peterqd wrote:
| Lightshow wrote: |
I posted a quick guide here:
www.fredmiranda.com/forum/topic/1047535
I hope that helps.
(wow posting a simple link is such a huge PITA, it looks fine in preview, but when I click submit it changes) |
Thanks for the link to your helpful guide.
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tyler73
Joined: 12 Oct 2011
Posts: 15
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| Posted: Fri Nov 04, 2011 2:41 pm Post subject: |
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tyler73 wrote:
I put another penetrating oil and I've unlocked.
Thanks  |
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