Manuel Viet wrote:
> Le mardi 21 Juin 2005 14:34, John Hermanson a écrit :
>
>>Shutter speed ball bearing should be lubed with a grease, like 023
>>photolube.
>
>
> Please excuse my question if it looks stupid, but I'm not an english native
> speaker, and I'm not sure that this exact product is available in France, so
> when you speak of a grease, is it because it feels semi-solid (opposite to
> oil which would be liquid) or because it's of animal origin instead of
> vegetal or mineral ? Is there a more "general purpose" grease which would
> match this specialized one, just in case I can't find it (like, I don't
> know... sewing machine or hair cutter mineral lube) ?
A thick semi-solid similar to the lubrication used for wheel bearings on
your car. Actually, the wheel bearing grease is probably a good
substitute as it does not turn liquid and flow at high temperatures.
Also works well to lube the helicals on lenses.
The detent ball should only need enough grease to give the ball itself a
thin coating.
>
>
>>Could be that the body is so used that a track has worn into the
>>clicks of the ss dial, causing the bb to get caught and jam at each detent.
>
>
> You mean that normaly each "hole" is a round cup not connected to the
> previous
> and following one ? In that case, yes, there's now a fairly deep track
> between holes. Guess that's the source of my problem. Maybe I should start to
> stock out of order bodies, as a source of parts for repairs. Not that I don't
> value the job of true professionals, but all the remaning olympus specialists
> seem to be in the USA nowdays, and that's very, very far for me.
I haven't seen the inside of an Oly shutter speed dial for a long time
but I would guess that there is a shallow "V" groove machined in and
connecting all the detent holes. But look for signs of wear vs. machining.
>
Chuck Norcutt
==============================================
List usage info: http://www.zuikoholic.com
List nannies: olympusadmin@xxxxxxxxxx
==============================================
|