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Message |
    
Peter Robinson (Monopix)
VIP
Username: Monopix
Post Number: 231
Registered: 12-1997
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, February 18, 2022 - 06:25 am: | 
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This is on a Contax RTSii with a horizontal cloth (actually titanium) shutter. The brake assembly and rotation limiter has had some grease smothered all over it. That doesn't sound like a good idea to me but I'm not sure. I never lubricate them and I've never seen grease on them previously but I wondered what the general opinion was.
www.contax139.co.uk
www.contax-yashica-repairs.co.uk
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Peter Robinson (Monopix)
VIP
Username: Monopix
Post Number: 232
Registered: 12-1997
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, February 24, 2022 - 03:08 am: |
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So no comments from anyone but I eventually answered my own question and the answer is, don't ever put grease on this type of curtain brake, it causes no end of problems. This shutter only stared to work properly after I cleaned it all off.
www.contax139.co.uk
www.contax-yashica-repairs.co.uk
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Paul Ron (Paul_ron)
VIP
Username: Paul_ron
Post Number: 306
Registered: 12-1997
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, March 08, 2022 - 09:18 pm: |
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I dont work on those cameras but is that dampening grease? |
Peter Robinson (Monopix)
VIP
Username: Monopix
Post Number: 233
Registered: 12-1997
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, March 11, 2022 - 03:23 am: |
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I don't know what it was. Looked like a fairly light grease to me. It certainly wasn't damping anything. But it stopped the brake from doing what it was designed to do.
www.contax139.co.uk
www.contax-yashica-repairs.co.uk
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Frank Wilson (Wolfmancameras)
Apprentice
Username: Wolfmancameras
Post Number: 21
Registered: 05-2021
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, August 21, 2022 - 05:01 am: |
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Makes good sense for brake mechanics. Grease does more harm than good for stopping.
FRANK
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Philip F McFarland (Pfmcfarland)
Tinkerer
Username: Pfmcfarland
Post Number: 4
Registered: 05-2021
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, August 23, 2022 - 08:20 am: |
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From the looks of things it had to be some hack that thinks everything you can get to needs to be lubed. That stuff is all over the place.
PF |
Rick_oleson (Rick_oleson)
Legend
Username: Rick_oleson
Post Number: 1366
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, August 23, 2022 - 08:26 am: |
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It can be necessary in some cameras. In the Pentacon Six, the anti bounce brake can stop the curtains short and prevent the flash from firing. Generally I’m not fond of oil and grease but some designs need a bit. |
