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Author Topic: Worm Gear Tutorial Video
Paul Repar
Junior
Posts: 9
From: Chicago,Illinois
Registered: Apr 2006


 - posted February 11, 2019 06:51 AM      Profile for Paul Repar   Email Paul Repar   Send New Private Message       Edit/Delete Post 
Hello all,Here is my video tutorial on a disassemble of a B&H 1500 Series projector to access and replace a worm gear.Hope this helps out some people who have interest in attempting this.Thanks

Tutorial: https://www.youtube.com/watch?v=sVCs17tXDNs

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Janice Glesser
Film Goddess

Posts: 3375
From: Sunnyvale, CA USA
Registered: Sep 2011


 - posted February 11, 2019 09:38 AM      Profile for Janice Glesser   Email Janice Glesser   Send New Private Message       Edit/Delete Post 
Thank you so much Paul for your excellent video. I don't even have a B&H 16mm projector (Elmo 16Cl), but I watched the entire video. I've heard so much over the years about the cracked worm gears on these machines and how time-consuming it is to replace. Your video confirms the process.

Great job and this will be a tremendous asset to our hobby!

--------------------
Janice

"I'm having a very good day!"
Richard Dreyfuss - Let It Ride (1989).

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Paul Repar
Junior
Posts: 9
From: Chicago,Illinois
Registered: Apr 2006


 - posted February 11, 2019 03:48 PM      Profile for Paul Repar   Email Paul Repar   Send New Private Message       Edit/Delete Post 
Thank you for your kind words,unfortunately the video file was so large I had to stop before I could show the reassembly of the gear mechanism into the machine,and the machine running a film.But I will be producing another video with another projector of the same series.It will start with the worm gear install and loop restorer adjustment,then the reinstall of the chassis then running film to diagnose and timing adjustments.

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Janice Glesser
Film Goddess

Posts: 3375
From: Sunnyvale, CA USA
Registered: Sep 2011


 - posted February 11, 2019 06:50 PM      Profile for Janice Glesser   Email Janice Glesser   Send New Private Message       Edit/Delete Post 
Sounds good Paul. These types of videos are invaluable. You can... might think about dividing the procedures up into separate shorter videos.

[ February 11, 2019, 07:51 PM: Message edited by: Janice Glesser ]

--------------------
Janice

"I'm having a very good day!"
Richard Dreyfuss - Let It Ride (1989).

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Maurice Leakey
Film God

Posts: 5737
From: Bristol. United Kingdom
Registered: Oct 2007


 - posted February 13, 2019 03:37 AM      Profile for Maurice Leakey   Email Maurice Leakey   Send New Private Message       Edit/Delete Post 
Paul's video is very comprehensive, but I would suggest that a Bell & Howell worm change is not a job for the faint hearted. And there is the fact that certain specialised tools may be necessary.

--------------------
Maurice

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Paul Repar
Junior
Posts: 9
From: Chicago,Illinois
Registered: Apr 2006


 - posted February 13, 2019 09:11 AM      Profile for Paul Repar   Email Paul Repar   Send New Private Message       Edit/Delete Post 
Honestly Maurice...A worm gear replacement is more intimidating than it looks,besides C-clip pliers and a Bristol tool set,all the other tools are basic,in which everything is available online.The key to disassembly,is notation and or photos of each step.And then to reassemble is the same.take your time,don't get sidetracked and double check everything.Invest in service manuals and research online.A first timer it could take days,and then understanding the timing adjustments may take longer,don't get frustrated and take breaks when you feel overwhelmed.Thank you for watching!

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Maurice Leakey
Film God

Posts: 5737
From: Bristol. United Kingdom
Registered: Oct 2007


 - posted February 13, 2019 11:10 AM      Profile for Maurice Leakey   Email Maurice Leakey   Send New Private Message       Edit/Delete Post 
Paul makes a good point.
It's not just the worm change, it's also the understanding of the timing adjustments, particularly in the case of auto-threaders.

--------------------
Maurice

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Jim Schrader
Phenomenal Film Handler

Posts: 1575
From: Savage, MN, USA
Registered: Jun 2003


 - posted February 17, 2019 07:30 AM      Profile for Jim Schrader   Author's Homepage   Email Jim Schrader   Send New Private Message       Edit/Delete Post 
Is the timing different on slot loaders?

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jim schrader
"Let's see “do I have that title already?"

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Chip Gelmini
Phenomenal Film Handler

Posts: 1684
From: Brooksville, FL
Registered: Jun 2003


 - posted February 17, 2019 08:25 AM      Profile for Chip Gelmini   Email Chip Gelmini   Send New Private Message       Edit/Delete Post 
How much do you charge to do the job and how long does it take to have this done. I have a couple that probably need this done as well as a genuine tune up. The model numbers are 2585 & 2592.

[ February 17, 2019, 05:56 PM: Message edited by: Chip Gelmini ]

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Paul Repar
Junior
Posts: 9
From: Chicago,Illinois
Registered: Apr 2006


 - posted February 20, 2019 12:09 AM      Profile for Paul Repar   Email Paul Repar   Send New Private Message       Edit/Delete Post 
Jim, The slot loaders are pretty much the same as far as timing goes.They are a bit more tricky to get the chassis/mechanism out,so if the timing is off causing any wow or flutter,it is more difficult and time consuming to reinstall,auto/manual threaders i can disassemble install the worm gear and reassemble in just under 6 hours average with timing set.

Hello Chip,If you send me an email: paulfortea@aol.com we can discuss it a little more. Thanks Paul

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