Luuk Schröder Posted October 20, 2021 Share Posted October 20, 2021 Hi All, Last summer I managed to buy a working Eumig Nautica on Ebay. Like many camera's that haven't seen service in a long time it worked for a few films and gradually stopped working. Firstly it had trouble forwarding films, and later on the motor stopped responding. I could fix that with a sharp tap on the camera's body, but at some point the camera completely stopped responding when I pressed the filming trigger. The circuit is still working though as I can see a red light when I press the testing knob. I've tried to contact many different places for servicing in Europe without any luck, so I think I will give it a go myself. Unfortunately I cannot find any service manual for the Nautica online. Does anyone know whether there's a different Eumig camera that has the same or similar inside of which I could use a service manual as an example? Or a good general guide on servicing Eumig cameras? Or any other advice is much appreciated! Thanks a lot! Luuk Link to comment Share on other sites More sharing options...
christophernigel Posted October 20, 2021 Share Posted October 20, 2021 Try some contact spray & a tap with fresh batterys ! Link to comment Share on other sites More sharing options...
Luuk Schröder Posted October 31, 2021 Author Share Posted October 31, 2021 Update: I managed to track down the problem! After a pretty far disassembly and having several tries with cleaning contacts with alcohol, I got to the motor part. With a small screwdriver I managed to push and rotate the gear directly attached to the motor (see image) a few rounds. After this the whole assembly 'worked' again. So it seems that the gears were encountering too much resistance for the motor to drive them. Could this be due to some dust getting stuck in between, or due to a lack of lubricant? Clearly, the motor occasionally not able to forward film and shutting off completely are the same problem. At the moment I am not sure how to proceed, by blowing out the dust? Or by adding a tiny bit of lubricant? And if so, what lubricant should I use? Link to comment Share on other sites More sharing options...
Luuk Schröder Posted October 31, 2021 Author Share Posted October 31, 2021 Also, the filter that flips in front of the light-meter came off. What kind of glue is best to use for remounting it? Link to comment Share on other sites More sharing options...
Luuk Schröder Posted October 31, 2021 Author Share Posted October 31, 2021 I managed to buy a Eumig Nautica service manual online, which is pretty brief at just 4 pages and only covers the dismantling and electrical charts. It says that most servicing and repairs are the same as with the Eumig Mini 3 PMA camera. This service manual is 28 pages long. Is it likely I can find basic servicing, like what to do with the gears, in this manual? In that case I'll buy it and wait for another week... Link to comment Share on other sites More sharing options...
Todd Pinder Posted October 31, 2021 Share Posted October 31, 2021 Hi Luuk, yes I was going suggest buying a Mini 3 (or 2) to practice working on before opening up your Nautica! Do you have the service manual for the Mini 3? Link to comment Share on other sites More sharing options...
Luuk Schröder Posted October 31, 2021 Author Share Posted October 31, 2021 Hey, that is a good idea, except I already opened my Nautica ^^ I've been very careful though and haven't made any damage I think. But perhaps I could follow your advice anyways and practice the repairs onto a mini 3. Unfortunately I don't have the service manual for the Mini 3... do you happen to know whether I could find a digital version? Link to comment Share on other sites More sharing options...
Todd Pinder Posted October 31, 2021 Share Posted October 31, 2021 Sorry Luuk, I thought I'd ask you about the Mini 3 manual because you had mentioned it with some detail! I have three Nautical with one modified by Bolex to 24fps. Unfortunately its hard to find Mini 3's in the states, but so many for next to nothing in Europe! Link to comment Share on other sites More sharing options...
Luuk Schröder Posted November 20, 2021 Author Share Posted November 20, 2021 Hi Todd, I managed to make some progress with your suggestions. The problem turns out to be with the claw mechanism, not the motor or gears. When the pressure is wrongly adjusted the claw mechanism jams, which causes the whole thing to stop. When I loosen the claw pressure the problem happens less frequently. In the service manual (see image) is explained that the claw mechanism should have a pressure of 10-16 p, but I have no way of measuring this. In addition, excentric F which sets the side pressure was missing, so I took it from the Mini 3 : ) However I am not too sure what would now be the most sustainable way of fixing the problem... So I was hoping someone could help me further. Thanks a lot for your suggestions, in the least I learned a lot. Link to comment Share on other sites More sharing options...
Todd Pinder Posted November 20, 2021 Share Posted November 20, 2021 Luuk, well happy to see you have made some progress but unfortunately can not offer anymore advice! Looks like you need some sort of device to measure the pressure, seems to be mentioned in the article attached! Link to comment Share on other sites More sharing options...
Ed Sayers Posted July 19, 2022 Share Posted July 19, 2022 hi luuk. do you have a service manual you can share please? i’m trying to work out a focus issue on a eumig nautica. i’ve fixed lots of mechanical problems but optical ones are a mystery. thanks. ed Link to comment Share on other sites More sharing options...
Ed Sayers Posted July 21, 2022 Share Posted July 21, 2022 (edited) if this is any use to anyone trying to fix eumig nauticas... here's a video of opening up two cameras. please excuse the poor choice of tools! i hope it helps someone in the future - Edited July 21, 2022 by Ed Sayers bad syntax! 1 Link to comment Share on other sites More sharing options...
Luuk Schröder Posted July 25, 2022 Author Share Posted July 25, 2022 Hi Ed, yes I'd be happy to send you the service manual. Could you message me your email address? It's in pdf and the filesize is too big to attach here. Link to comment Share on other sites More sharing options...
Luuk Schröder Posted July 25, 2022 Author Share Posted July 25, 2022 And thanks for the video, good information to have here. Link to comment Share on other sites More sharing options...
Onno Petersen Posted October 8, 2022 Share Posted October 8, 2022 Hi Luuk, I am trying to find a service manual for the Nautica but unsuccessful, can I politely ask for a pdf from you as well? Link to comment Share on other sites More sharing options...
Luuk Schröder Posted October 13, 2022 Author Share Posted October 13, 2022 Hello, I've shared the manuals here: Nautica manual Link to comment Share on other sites More sharing options...
Onno Petersen Posted October 13, 2022 Share Posted October 13, 2022 Cool, many people will be happy. Did you manage to fix your camera in the end? Link to comment Share on other sites More sharing options...
Luuk Schröder Posted October 14, 2022 Author Share Posted October 14, 2022 Hi there, kind of.... the film transport claw tends to get stuck sometimes. It still happens but by now I know how to make the camera function again when it happens. Also I managed to get a second Nautica ^^ Link to comment Share on other sites More sharing options...
Joe Gill Posted May 2, 2023 Share Posted May 2, 2023 This was incredibly useful - thanks so much for posting! Link to comment Share on other sites More sharing options...
Ed Sayers Posted May 2, 2023 Share Posted May 2, 2023 On 10/14/2022 at 11:03 AM, Luuk Schröder said: Hi there, kind of.... the film transport claw tends to get stuck sometimes. It still happens but by now I know how to make the camera function again when it happens. Also I managed to get a second Nautica ^^ hi luuk. i have another one where the film jitters after about 2/3 of a cartridge. is that the claw? the mechanism seems to be working fine. what tricks are there for making the claw work properly?? thanks ed Link to comment Share on other sites More sharing options...
Luuk Schröder Posted May 5, 2023 Author Share Posted May 5, 2023 Hi Ed, The problem I have is that the mechanism sometimes completely stops, with or without film. So this seems different from what you are describing. The way to fix my problem is by pushing the claw mechanism forwards, not at the film gate, but in one of the corners (see image, blue circle). Perhaps you could try to change the claw pressure by adjusting the screws? Link to comment Share on other sites More sharing options...
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