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Message |
    
Kkl122002
Tinkerer
Username: Kkl122002
Post Number: 45
Registered: 05-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, August 12, 2007 - 12:40 am: | 
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I soon discover my Retina IIIc is going to 'reload' the previous problem again. The blades edge is having unknown fluid on it. The rear slide is more serious.
The front part I have used alcohol to clean it. The fluid has gone. But the problem is the rear side. I don't know how to remove the back element. Can anyone please help me? |
Rick_oleson
Tinkerer
Username: Rick_oleson
Post Number: 338
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, August 12, 2007 - 06:52 am: |
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The best way is to disassemble the shutter and remove the blades for cleaning, but it's not as easy as just getting in the front. Alcohol is not very effective for the blades, it dries very slowly and pretty much leaves the oil where it was. The best thing for blades, if you want to try cleaning them in place, seems to be CRC "QD" Electronic Parts Cleaner, which comes in large spray cans in hardware and automotive supply stores. Spray this on the blades and then operate the mechanism over and over again until they are dry. No cleaning-in-place really removes the oil, it just relocates it hopefully to a less troublesome place. Operating the blades while they are wet helps to wipe the oil off while it's softened by the solvent.
It's best to remove the rear lens cell to keep it clean during this process, but in the Retina it's not so easy to get it unscrewed through the film opening. There was a guy selling a nicely made special tool for it - beljanmfg i think was his name on eBay. |
Kkl122002
Tinkerer
Username: Kkl122002
Post Number: 46
Registered: 05-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, August 12, 2007 - 06:56 pm: |
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I see. Can I use lighter fluid or electro-contact cleaner? It seems they are cheaper and easier to get one. |
Rick_oleson
Tinkerer
Username: Rick_oleson
Post Number: 340
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, August 13, 2007 - 03:32 am: |
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Lighter fluid may work, but it dries very slowly between the blades. Electronic contact cleaner is a better solvent.... make sure you never use it on plastic parts, though, it can do irreparable damage to some plastic camera materials (The "QD" stuff seems to be reasonably safe, but lighter fluid is best where there is plastic around) |
