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Re: [OM] OM-2sp service question

Subject: Re: [OM] OM-2sp service question
From: Chuck Norcutt <chucknorcutt@xxxxxxxxx>
Date: Mon, 07 Oct 2002 22:43:21 -0400
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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