----- Original Message ----- From: "Kenneth Frazier" <kennybod@xxxxxxx> To: <rollei_list@xxxxxxxxxxxxx>; <rolleiusers@xxxxxxxxxxxxxxx>
Sent: Wednesday, February 14, 2007 8:19 AM Subject: [rollei_list] Checking shutter speeds...
Listers,The shutter came unstuck, all on it's own, and I'm exercising it now, again, and it seems to be loosening up. The speeds above 1/30th don't stick, but all lower speeds do.Is there a method for checking shutter speeds, using the gear and tools that any well-equipped photographer might have?Ken
The shutter is sticking because the lubricant used on it has become gummed up. It needs to be cleaned and relubricated. Modern practice is to use synthetic lubricants that do not oxidize and become gummy. Also, some repair people put too much lubricant on the shutter, very little is needed. Stuck blades also can indicate that there is something on the shutter blades, perhaps some oil. In a proper cleaning the shutter is disassembled down to the blade assembly and all of it cleaned. Blades, and the blade drive ring, are never lubricated, they rely on a very smooth finish and being exactly parallel for smooth operation. The higher speeds will often work because they do not require the use of the clockwork speed regulator. While its possible to clean a shutter yourself a fair amount of mechanical work is necessary to get it out of the camera for proper cleaning. You can try just putting a little Naptha on the regulator gears but that is often only a temporary fix. Getting to that requires removing the front cover of the camera and opening the shutter. The Rolleiflex repair manuals offered for sale on the internet cover the later models, not the MX and other earlier Rolleis. Also, there is not much info on the shutters there. There is a reprint Compur manual available (maybe even a free download) and that is more help. There are also reprint National Camera textbooks available. These will give you step-by-step instructions. However, they are in sections and get expensive. Mostly fairly simple tools are needed but you will have to make some of them. The screws used on Rolleis, and many other cameras, have quite thin slots, most standard jeweller's screwdrivers will be too thick. To work with these take a set of cheap jeweller's screwdrivers and grind down the ends using a sharpening stone until they fit. If you use too narrow a driver, in order to get one with a thin enough blade, you will damage the screw. The adhesive used on the leather covers allows peeling off. A little alcohol will help. Often, the leather can be replaced by simply wetting the back with alcohol and smoothing it down. Rollei refers to the adhesive by a German brand name but it is evidently a shellack. If someone has used rubber cement or contact cement you may have difficulty getting the leather off. Acetone or Xylol may be helpful with this when applied with a small brush. A trip to a good Rollei tech (H.Fleenor comes to mind) will cost some dough but you will get back a nearly new camera which will not need service again for years.
--- Richard Knoppow Los Angeles, CA, USAdickburk@xxxxxxxxxxxxx
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