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Topic: Christie Platter Problem - AW3R

Glenn Conatser
Film Handler

Posts: 73
From: Northern California
Registered: Aug 2001

posted 04-24-2002 11:16 PM

Im still running some of those green motors and had the problem mentioned above where the motor keeps running. However that was changed to one of the Bodine motors. No problems since then and the great thing about the Bodine motors is they can be repaired where as the Christie ones couldnt be fixed.

Cheers,
Glenn

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Michael Rourke
Expert Film Handler

Posts: 159
From: San Luis Obispo, Central Coast of CA
Registered: Feb 2002

posted 04-24-2002 11:31 PM

I can lift decks off their axle without help...the secret is the chin.

I had some of those defective drive wheels and they just come apart like an old eraser, very messy. The new drive wheels are much harder and when the deck starts to spin they squeal like little piggies...until they get broken in.

I blow the carbon dust out of the platter motors every year, at six months there isn't any dust to speak of. Not doing this at all wouldn't make the deck shake the only problem that comes from not blowing out the motors would be squeaky motors.

Glen: Make sure you grease your axle bearings every year too for smooth platter operation; and whenever you aren't using a deck for an extended amount of time, prop the motor off the platter arm or you'll give the drive wheel flat spots. They're 40 bucks apiece!!!!

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Darryl Spicer
Film God

Posts: 3250
From: Lexington, KY, USA
Registered: Dec 2000

posted 04-25-2002 08:57 AM

A good practice to do to prevent the flat spots from occuring due to not using the platter. use all three platters. If the print is on the top platter run the first show to the middle. Then run the next show to the bottom. Then run the next show to the top. Just keep repeating the rotation.

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Paul G. Thompson
The Weenie Man

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

posted 04-25-2002 01:51 PM

Darryl, you have a good point. Maybe Christie could make a retrofit kit to release the tension any given platter is not used frequently. Something like Strong International did on their A-3's, and Xetron did on their XNR series.

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Will Kutler
Phenomenal Film Handler

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

posted 04-25-2002 06:09 PM

The worst thing for ANY piece of complex mechanical equipment is to let it sit for extended periods without use. Make it your business to use that extra platter deck at least once a week....

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David Whitbeck
Film Handler

Posts: 70
From: Tempe, AZ
Registered: Jun 2001

posted 04-25-2002 06:42 PM

Since you're all on the subject of the AW3R, I've got a problem that just popped up myself. Today I noticed that when the take up arm was pulled all the way over to the motor, the motor kept creeping. This didn't really make my leader too happy... Anyway, we just got these put in so I decided to ask you guys before I dig into them. What do I need to adjust?

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Paul G. Thompson
The Weenie Man

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

posted 04-25-2002 07:28 PM

David, that is just an adjustment. Check your manual on how to make that adjustment. It could be a mechanical adjustment of the light shutter in the module to a mis-adjusted control module. More than likely, it is a control module adjustment.

Re-time the whole system IAW the manual, and you should be just fine.

If you didn't get a manual with your machines, there is a manual you can download in the FT Manuals section.

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David Whitbeck
Film Handler

Posts: 70
From: Tempe, AZ
Registered: Jun 2001

posted 04-25-2002 08:22 PM

Yeah, I looked in the manual, but it didn't really say anything about my problem so I really just wanted to confirm that it was the control module before I screwed with it. Thanks Paul.

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Brad Miller
Administrator

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

posted 04-25-2002 08:27 PM

Odds are your timing has drifted. The quick fix is to open up the side column of the platter tree and adjust the LO pot just a touch counter-clockwise until the creeping stops. That'll keep you on screen, but you need to re-time that platter a.s.a.p.

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Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99

posted 04-25-2002 08:29 PM

Since they have just been put in it is possible that the arm has gotten shifted on the control for the take up not creating the correct "0" point

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Michael Rourke
Expert Film Handler

Posts: 159
From: San Luis Obispo, Central Coast of CA
Registered: Feb 2002

posted 04-25-2002 09:20 PM

David, if the problem still occurs after re-timing leave the brain out of the take up deck, that might be giving mixed signals to the control sensor assembly.

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David Whitbeck
Film Handler

Posts: 70
From: Tempe, AZ
Registered: Jun 2001

posted 04-25-2002 10:07 PM

I set the brain arm at 20 and turned down the Low pot until the platter was just creeping, this is what the techs said to do and the same with the manual, it seems to be OK now. Now that I've done this and it's working fine, will I really need to retime the High speed?

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David Whitbeck
Film Handler

Posts: 70
From: Tempe, AZ
Registered: Jun 2001

posted 04-25-2002 10:08 PM

Oh, and we have only one brain per set of platters so the brain isn't interfering with the signal any. Just so you know...

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