[optimal] Re: Haag-Streit PBQ-900
- From: Angela Chappell <angela.chappell@xxxxxxxxxxxxxxx>
- To: "optimal@xxxxxxxxxxxxx" <optimal@xxxxxxxxxxxxx>
- Date: Thu, 19 Dec 2013 05:51:50 +0000
Marshall and interested parties,
You wouldn't believe how close you were with your solution!
There is a bearing in between the 2 shutters which the technician cleaned
and lubricated with WD-40. His technical info didn't state which number
H-S lubricant to use for this particular moving part, so he is going to
check with Switzerland. Thankfully everything is hunky dory again and
maybe it won't seize up again for another 20 years. This is a lovely
machine!
Kind regards
Angela
>------------------------------
>
>Date: Thu, 12 Dec 2013 09:10:23 -0500
>Subject: [optimal] Re: Haag-Streit PBQ-900
>From: Marshall Tyler <marshalletyler@xxxxxxxxx>
>
>Think dried out lubrication. If there is a hot viewing lamp nearby, make
>sure that it is turned down when not in use... the heat tends to dry out
>lubrication.
>I use WD-40 to clean out old oil/grease, and then re-lubricate it with the
>proper oil.
>Let us know what the H-S tech finds.
>Good luck,
>*Marshall*
>Marshall E Tyler
> sv *Silk*
>On Thu, Dec 12, 2013 at 6:43 AM, Angela Chappell <
>angela.chappell@xxxxxxxxxxxxxxx> wrote:
>
>> My trusty H-S photoslitlamp, which has hardly skipped a beat in the 20
>> years I've been using it, has had a severe aperture malfunction. It
>>began
>> with getting the odd blown out frame, caused by the aperture not
>>shutting
>> down, and progressed to it happening on most frames. Have had to limp
>>along
>> with it until it gets repaired, using the aperture preview to manually
>> operate the aperture, and now it is so stiff it's almost seized up.
>>
>> Before the technician comes tomorrow to completely strip it down, has
>> anyone got any advice on what to look for? Are there any bearings in
>>there,
>> or something which can be lubricated, or might it be the solenoid which
>>is
>> the problem?
>>
>> Thanks, Angela
--
Angela Chappell
Ophthalmic Photographer
Flinders Medical Centre
Bedford Park SA 5042
Ph 08 82044775
Angela.Chappell@xxxxxxxxxxxxxxx
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