Giuliobigazzi Posted July 19, 2022 Share #1 Posted July 19, 2022 Advertisement (gone after registration) Hey all, I’m trying to disassemble my Summitar to clean the helical. It is a 1946 model. Now when I remove the three screws at the back nothing changes. There are two other indentations between the screws that don’t appear on earlier or later versions. Maybe this has something to do with it. Does anybody know how to get it apart? Link to post Share on other sites More sharing options...
Advertisement Posted July 19, 2022 Posted July 19, 2022 Hi Giuliobigazzi, Take a look here Summitar helical. I'm sure you'll find what you were looking for!
250swb Posted July 19, 2022 Share #2 Posted July 19, 2022 If you type 'Summitar repair' into the search box on YouTube you will get many videos about dismantling and reassembling a Summitar. Link to post Share on other sites More sharing options...
Giuliobigazzi Posted July 19, 2022 Author Share #3 Posted July 19, 2022 I have done just that, but can’t find any info on this particular version. Others seem to just unscrew with the screws removed but this seems different Link to post Share on other sites More sharing options...
jerzy Posted July 19, 2022 Share #4 Posted July 19, 2022 a photo showing what you mean would help. There are 2 mechanical versions of Summitar, one with one grove on the tube and one with 2 groves. And with round and hex aperture. Firstly you need to separate tube and pull it out. Then unscrew the ring then you can proceed with 3 screws and opening the helicoid. Left photos show the newer version with 2 groves, right the older verions. Notice different mechanical construction of the tube and helicoid Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/334704-summitar-helical/?do=findComment&comment=4473686'>More sharing options...
Giuliobigazzi Posted July 19, 2022 Author Share #5 Posted July 19, 2022 That’s a great help thank you, my version is like the one on the right, I thought I’d just be able to unscrew the rear piece but I guess not. What I was confused about was the two extra holes between the screws. I thought it was these preventing me to unscrew Link to post Share on other sites More sharing options...
jerzy Posted July 20, 2022 Share #6 Posted July 20, 2022 vor 14 Stunden schrieb Giuliobigazzi: There are two other indentations between the screws I would be still interested to see the photo showing it, never saw it before on none of Summitars Link to post Share on other sites More sharing options...
Giuliobigazzi Posted July 20, 2022 Author Share #7 Posted July 20, 2022 Advertisement (gone after registration) The two indentations between the screws. What are their purpose? Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/334704-summitar-helical/?do=findComment&comment=4473888'>More sharing options...
jerzy Posted July 20, 2022 Share #8 Posted July 20, 2022 Sorry, never saw it before. No idea. Link to post Share on other sites More sharing options...
jc_braconi Posted July 20, 2022 Share #9 Posted July 20, 2022 May be these pins you see Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/334704-summitar-helical/?do=findComment&comment=4474124'>More sharing options...
DreiPunkte Posted December 30, 2024 Share #10 Posted December 30, 2024 Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! My 1950 Summitar have these pins too. For opening the helicoid I pressed the pins with a cut toothstick down. During reassembly they snap in pace. Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! My 1950 Summitar have these pins too. For opening the helicoid I pressed the pins with a cut toothstick down. During reassembly they snap in pace. ' data-webShareUrl='https://www.l-camera-forum.com/topic/334704-summitar-helical/?do=findComment&comment=5731369'>More sharing options...
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