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     Mareklew Tinkerer Username: Mareklew Post Number: 121 Registered: 03-2010 Rating: N/A |
Okay, sorry for the delay, I'm on holiday. At each step it's a good idea to take a picture of what you are going to remove with a digicam or even a better camera phone. Especially pay attention to spring ends (their hook points as well as which way around they get mounted). Also, if you remove a screw that had some washers, arrange the washers and springs etc. in a row in order how they were mounted, with up-side up and take a picture. It's invaluable! Use Scotch/3M invisible document tape (it looks like waxed paper, tears easily and is removable) to tape small washers etc to a piece of paper with a note where did they come from. Some washers aren't, they are shims, and although they look identical, they aren't: they might differ in thickness by 0.05mm. Luckily, not many of these in a Yashica. Step 0: remove lens bezel (4 small screws) and outer front bezel (another 4 small screws). On some Yashicas these screws are of different size (4 such and 4 other), so have a look. Step 1: remove the lens plate from the camera (4 obvious screws on the front). Yashicas don't have shims under the lens plate put in the factory, but if the camera was serviced and found with bad focus it could have been shimmed later. So pay attention to any washers between the lensplate and the focusing arms that the screws went into. Step 2: Remove front lens group of the taking lens. It unscrews as a whole piece (all that black part) out of the shutter. Put it in a clean new zip-lock bag to prevent from getting dirty and scratched. Step 3: Remove two springs that connect levers around the shutter assy with the lens plate. There's a third spring that's within a lever rotating around the lens, you don't need to remove that one. Step 4: Unsolder the flash sync cable from flash sync socket. Remove the rear element shade (the outer tube). It holds the shutter in the lensboard. There are going to be several rings and levers free, note their order and position, as well as which way do they face. Between ths shutter and the lens board there will be few shims and rings, that might 'stick' to the shutter and fall down later - carefully try to dislodge them all, none are screwed, just might be crimped a bit too hard the last 50 years. Save all shims noting their order. Step 5: remove the rear lens element, it unscrews just like the fron one. Put it in a plastic bag too. Put the lens board with the viewing lens aside, wrapped in something soft to protect the viewing lens. T.B.C |