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» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » Rebuilding Strong Alpha Platter Motor (Page 2)

 
This topic comprises 2 pages: 1  2 
 
Author Topic: Rebuilding Strong Alpha Platter Motor
Josh Jones
Redhat

Posts: 1207
From: Plano, TX
Registered: Apr 2000


 - posted 08-03-2004 02:51 AM      Profile for Josh Jones   Author's Homepage   Email Josh Jones   Send New Private Message       Edit/Delete Post 
as far as using the newer style motors on older platters, it can be done, you may have to adjust the variac's relationship to the dancer arm, however. Done it here, and it seems to work just fine.

Josh

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Stephen Frazza
Expert Film Handler

Posts: 161
From: Nutley, NJ, USA
Registered: Mar 2004


 - posted 08-03-2004 12:41 PM      Profile for Stephen Frazza   Author's Homepage   Email Stephen Frazza   Send New Private Message       Edit/Delete Post 
I had to borrow a tap set and it was the first time I had used one.
The part on the new motor for the screws to hold the plate in was to small so a had to use a smaller diameter.I think it was a 8-24 or maybe a 8-32.I was thinking smaller in my head when a wrote 10-20 that's why I mixed up the numbers.
In any event,I managed to get it in and running fine.

Ken thanks for the additional e-mail.

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System Notices
Forum Watchdog / Soup Nazi

Posts: 215

Registered: Apr 2004


 - posted 08-09-2007 04:27 PM      Profile for System Notices         Edit/Delete Post 

It has been 1101 days since the last post.


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Peter Boicourt
Film Handler

Posts: 8
From: Portland , Oregon
Registered: Feb 2007


 - posted 08-09-2007 04:27 PM      Profile for Peter Boicourt   Email Peter Boicourt   Send New Private Message       Edit/Delete Post 
Hello,
If someone still has the instructions on how to rebuild an Alpha Motor, please forward them onto me. I have one that is down and I want to rebuild all three at once.
Thanks!

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 08-09-2007 05:11 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
Pssssst. Take a look at the "Tips" section over to your left. You'll find them in there.

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 08-09-2007 07:19 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
I have been meaning to write up the procedure for this but just haven't had time. I am about 75% of the way done on writing up how to rebuild Strong Switchers.

At any rate they DO NOT always have to be replaced... They CAN USUALLY be rebuilt for alot less than a new motor at Graingers. The brushes and armature are available through Grainger and I reccomend you use rubber sealed bearings for longer life. The carbon dust has a bad habit of working into those shielded bearings. You will also neeed to have available the different size drive sleeves from either Potts or Strong. You will find that rebuilt motors have less torque. This is because of a change by the manufacturer in the armature.

Mark

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Randy Bowden
Expert Film Handler

Posts: 146
From: Portland, OR, USA
Registered: Aug 2000


 - posted 08-10-2007 02:03 PM      Profile for Randy Bowden   Email Randy Bowden   Send New Private Message       Edit/Delete Post 
Mark, I am definitely interested in your rebuild procedure. For the most part we just replace motor brushes or do the complete Grainger replacement. I am curious to know what size the bearings are as well as where to get additional replacement parts ie. diodes.

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Louis Bornwasser
Film God

Posts: 4441
From: prospect ky usa
Registered: Mar 2005


 - posted 08-10-2007 02:34 PM      Profile for Louis Bornwasser   Author's Homepage   Email Louis Bornwasser   Send New Private Message       Edit/Delete Post 
Almost any robust diode will work. Grainger has the armature (as Mark said) and the bearings. Even Potts is not too bad on small parts. They ARE convenient. (Strong & Potts are made by the same factory; parts are identical and are so labelled.) Louis

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 08-10-2007 07:39 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Randy,

I will get back to you on Monday either by phone or by IM with part numbers and the place to get them

Mark

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