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Topic: loose nuts on strong platters

Pete Naples
Phenomenal Film Handler

Posts: 1565
From: Dunfermline, Scotland
Registered: Feb 2001

posted 04-18-2001 10:57 AM

Moving print and deck together is something we discourage, for all the reasons mentioned above, I've seen prints simply lifted off the deck by TWO very experienced operators. Other than that the preferred methods here are to slide the print onto a 'horse' ( a specially made trolley with shelves at the appropriate height) or to use the Goldberg Showshipper, if the print is moving from booth to booth, or in the case of one of my services, across the road, from platter to tower!

I can vouch for the stepladder usage of platters, however I have encountered worse abuse of an ORC platter deck, let's just say that this piece of kit is on a university campus, and mysteriosuly got bent into a very strange shape one night..... It's amazing what people can get up to in such a confined space!

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Paul G. Thompson
The Weenie Man

Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000

posted 04-18-2001 03:25 PM

What John P. said is true, they are made of fiber glass. Thouble is they sag when picked up. If the platter does not have removable payout heads, the average projectionist will bash the head quite severely, sometimes rendering them useless.

Whether you are moving the film with the deck, a mat, using clamps, or just plain bare-naked, extreme caution has to be observed to prevent damage to your back or equipment. Here again, when the film is slid off the platter, the effort arm will severly punish the spindle. There are many maunfacturers who did not allow for this when the spindle was designed, and the weld can be easily broken.

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99

posted 04-18-2001 03:32 PM

I have had the 15/16" nuts come loose many times on many platters at many locations. I have a 15/16" wrench that is always in the bottom of my tool box for this purpose. If you angle it just slightly it works fine. I usually try to loctite tham as well, and if you do they do not loosen up again. I have found this happenning at plexes that move the disk to move films around. In plexes that don't move the disk to move prints I have not had it happen.
As far as I can tell what happens is that the axel gets shifted back and forth when the platter is wiggleg off the arm. This in turn slightly crushes the teeth of the internal tooth lock washer which I frequently see.
Mark @ GTS

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