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» 8mm Forum   » 8mm Forum   » Can a beginner replace belts on an Elmo ST-180E M?

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Author Topic: Can a beginner replace belts on an Elmo ST-180E M?
Evan Forman
Junior
Posts: 2
From: Philadelphia
Registered: Nov 2011


 - posted November 05, 2011 07:00 PM      Profile for Evan Forman   Email Evan Forman   Send New Private Message       Edit/Delete Post 
Hello. I tried to run an Elmo ST-180E M after a very long period of inactivity and both belts immediately broke. Does anyone know how difficult it is to replace these? (It is the first time I've even had the back case open.) Is there a place to access instructions, eg a service manual? And is there anywhere you'd recommending purchasing the belts? Thanks for any help!

[ November 05, 2011, 09:01 PM: Message edited by: Evan Forman ]

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Steve Klare
Film Guy

Posts: 6797
From: Long Island, NY, USA
Registered: Jun 2003


 - posted November 05, 2011 09:37 PM      Profile for Steve Klare   Email Steve Klare   Send New Private Message       Edit/Delete Post 
It's not actually that bad: you may need to remove a small metal clip to get at the pulley for the rear spindle, but as long as you put it back together the same way you took it apart you should do fine.

I get my belts from this E-bay seller:

ST-180 Belt Set

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All I ask is a wide screen and a projector to light her by...

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Evan Forman
Junior
Posts: 2
From: Philadelphia
Registered: Nov 2011


 - posted November 07, 2011 08:45 AM      Profile for Evan Forman   Email Evan Forman   Send New Private Message       Edit/Delete Post 
Thanks so much! I read somewhere that you need to adjust the circuit board with a potentiometer and somewhere else that you need to adjust tension -- neither of which I was prepared to do.

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Steve Klare
Film Guy

Posts: 6797
From: Long Island, NY, USA
Registered: Jun 2003


 - posted November 07, 2011 11:04 AM      Profile for Steve Klare   Email Steve Klare   Send New Private Message       Edit/Delete Post 
I've had to re-tune the speed potentiometers when I replaced a motor, but never while replacing belts.

I suppose it could make a difference in speed, but at least so far that difference has been small enough not to notice.

I've heard there's a window of about +/-5% projection speed where the difference in audio pitch will not be apparent to most listeners. If this is true and you stay within 23-25FPS all should be well.

There's a belt tensioner pulley on ST-1200, but I don't think there is one on ST-180. My ST-800 is similar to the ST-180, and when I change belts I don't adjust anything.

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All I ask is a wide screen and a projector to light her by...

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Jon Addams
Jedi Master Film Handler

Posts: 638
From: New York, NY, USA
Registered: Apr 2007


 - posted November 07, 2011 04:22 PM      Profile for Jon Addams   Email Jon Addams   Send New Private Message       Edit/Delete Post 
You are right on the money Steve [Wink] [Wink]

Regards,

Jon

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