Maybe this friction device is the reason why the OM 1, 2n series had amuch
smoother take up.
----- Original Message -----
From: <clintonr@xxxxxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Wednesday, October 09, 2002 6:13 AM
Subject: Re: [OM] OM-2sp service question
> Strange, really strange.... The 2s (and others, OM-10 and later models)
uses
> a different kind of clutch in the wind mech -- a sort of friction device
that
> can sometimes break. With loose parts inside, it may grab one way but not
> the other. Or, as you've suggested, there may be some other loose part
loose
> inside, but the reliable nature of the problem makes that less likely --
> after a while, you'd expect a loose part to migrate somewhere else where
it
> doesn't do that. This is the sort of trouble that keeps this job
> interesting!
>
>
> Chuck Norcutt wrote:
>
> > I think the "directional aspect is not only unusual but key to this
> > problem. I removed the bottom cover and checked the levers. The
> > potentially suspect one is not blazingly quick and perhaps needs
> > cleaning but I don't think it's at all related to this problem.
> >
> > I'll reiterate that with the camera pointing up or forward the wind
> > lever works normally 1000f the time. With the camera pointed down or
> > upside down the wind lever works 00f the time. If the wind lever will
> > not wind simply rotate camera to appropriate position and then it will
> > wind normally provided you first release any pressure on the lever.
> >
> > I also discovered that, if the camera is pointed up, the wind lever will
> > wind normally but the lever will only return half way before it gets
> > blocked by something. Return camera to facing forward position and wind
> > lever will return the rest of the way.
> >
> > The behavior is as though there's a small pin or screw floating around
> > inside which manages to block a gear or linkgage when it's in the right
> > position. However, I can't see any such thing with the bottom cover
> > removed which implies something at the top. Given the additional
> > problem of not being able to fully return the wind lever when the camera
> > is facing up it would seem that perhaps the detent mechanism that holds
> > the wind lever in the half cocked position is somehow involved. When
> > the wind lever won't return it is in exactly the half cocked position
> > where there is normally only a slight detent.
> >
> > Have I made the first discovery of the "out of control detent
mechanism"?
> >
> > Thanks,
> > Chuck Norcutt
> > Woburn, Massachusetts, USA
> > ---------------------------------------
> >
> > Clinton said:
> > The "directional" aspect is unusual -- could also be that a spring is
> > unhooked. You might want to remove the bottom cover and look at the
> > short lever behind and next to the battery chamber -- it should have a
> > rather heavy, short spring hooked to it. It (the lever) works the black
> > lever that gets sticky (above). With the camera wound, the black lever
> > should move quickly when moved. If it's slow and sluggish, it's got to
> > be cleaned.
> >
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