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Author Topic: Spring Tension
Manuel Francisco Valencia
Expert Film Handler

Posts: 151
From: Oklahoma City, OK, USA
Registered: Dec 2000


 - posted 11-11-2001 06:49 PM      Profile for Manuel Francisco Valencia   Email Manuel Francisco Valencia   Send New Private Message       Edit/Delete Post 
Does anyone know what the tension should be for the AW3 filter spring? I usually give it about three to five revolutions depending on each individual spring.

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Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99


 - posted 11-11-2001 10:15 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
Each spring is different. You want as little tension as possible, but enough so that the payout arm will still make it's way back to "zero" on it's own.

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Randy Stankey
Film God

Posts: 6539
From: Erie, Pennsylvania
Registered: Jun 99


 - posted 11-11-2001 11:26 PM      Profile for Randy Stankey   Email Randy Stankey   Send New Private Message       Edit/Delete Post 
According to Christie, there should be two turns on the spring. And, yes. Like the B-Man says, Mileage will vary...

Make sure all the parts and bearings are good and clean. Dirt that gets ground down into the "hole" can be a real PITA sometimes. Especially when people don't clean it out every once in a while. People will sometimes give a platter a real good cleaning, within an inch of it's life, and forget to get down in that hole. After a while the brain starts to stick and the payour arm won't follow the motion of the film correctly. Getting all the junk out of there can seem to make all the difference in the world sometimes.

Anyhoo... Once you get the thing put back together, just he way you like it, hold it up the way it would be if it was installed in the unit and test it out. The filter card should be able to swing freely under its own weight without "snapping back" or getting hung up. It needs to make a smooth, gentle travel in both directions. It may take a few tries to get it right but once you know the "secret" you sould have no problems.

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Will Kutler
Phenomenal Film Handler

Posts: 1506
From: Tucson, AZ, USA
Registered: Feb 2001


 - posted 11-13-2001 06:03 PM      Profile for Will Kutler   Email Will Kutler   Send New Private Message       Edit/Delete Post 
Brad and Randy are correct. One suggestion, though. If you have the bolt down payout heads (AW-3), it may be a very wise decision to convert to the removable payout assemblies (AW-3R). Those removable payout heads sure simplify film-handling and platter cleaning/maintenance!

Keep as little tension on those springs as necessary, and also make sure that they do not become tangled upon themselves, which can easily happen.

Keep those bearings clean and lubed!

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