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Graflex 16mm 820 Projector

 
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dougdi



Joined: 06 Feb 2019
Posts: 3
Location: United States

PostPosted: Fri Feb 08, 2019 2:52 pm    Post subject: Graflex 16mm 820 Projector Reply with quote

Hi, not sure if this will get noticed or not.

I just rescued an 820 projector that I need for a short use. It seems to run smoothly, lamp looks fine, audio is not needed.

I'm going to run it to view several 400' reels. I have no idea of it's history and I would think it would need some lubrication somewhere. The old manual I found online mentions the felt pad near the shutter needing lube but I'm not sure what modern replacement would be appropriate.

Thanks in advance!

Doug
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45PSS



Joined: 28 Sep 2001
Posts: 3756
Location: Mid Peninsula, Ca.

PostPosted: Fri Feb 08, 2019 10:27 pm    Post subject: Reply with quote

Likely a light weight oil such as clock oil or possibly gun oil. Movie theater projectors used an oil similar in viscosity to mineral oil.
If the felt pad is for the shutter movement then the the temperature characteristics of the oil are important.

https://www.amazon.com/Tri-Flow-Squeeze-Bottle-Lubricant-Teflon/dp/B00GC54OC2 should be readily available locally, good for -60įF to 475įF applications.
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dougdi



Joined: 06 Feb 2019
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Location: United States

PostPosted: Sat Feb 09, 2019 1:37 pm    Post subject: Reply with quote

I have some light lubricant I used on a model flying helicopter that also contains PTFE. In this case itís for a felt pad that puts pressure on the shutter and itís very close to the bulb, Iíll check itís temperature range. Otherwise Iíll order your suggestion. Many thanks!

Doug
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dougdi



Joined: 06 Feb 2019
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PostPosted: Sat Feb 09, 2019 1:45 pm    Post subject: Reply with quote

Ha! The tube I have is Triflow with a pinpoint applicator, so Iím ready to go!
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