8mm Forum


  
my profile | my password | search | faq | register | forum home
  next oldest topic   next newest topic
» 8mm Forum   » 16mm Forum   » How to replace a worm drive on a B&H 1695 projector

 - UBBFriend: Email this page to someone!    
Author Topic: How to replace a worm drive on a B&H 1695 projector
Mark L Barton
Jedi Master Film Handler

Posts: 621
From: Bristol, South Glos, England
Registered: Mar 2009


 - posted June 02, 2010 05:55 AM      Profile for Mark L Barton     Send New Private Message       Edit/Delete Post 
I knew it would happen eventually (like a head gasket going in a Landrover Freelander) yes...the worm drive has finally cracked in my Bell and Howell 1695 16mm projector. So the question guys is: How do you replace the wrom drive in a Bell and Howell 1695 projector" Any and all replies with advice greatly appreciated. Cheers, Mark

 |  IP: Logged

Jean-Marc Toussaint
Film God

Posts: 2392
From: France
Registered: Oct 2004


 - posted June 02, 2010 06:35 AM      Profile for Jean-Marc Toussaint   Author's Homepage   Email Jean-Marc Toussaint   Send New Private Message       Edit/Delete Post 
And the answer is : "with much difficulty".

Mark, do you have any experience in disassembling projectors? Changing a B&H worm gear can be a real pain. You may purchase a spare part from Classic Home Cinema and the complete service book of the TQIII/1695 can be downloaded from the Manuals sections. Good luck.

--------------------
The Grindcave Cinema Website

 |  IP: Logged

James Wheeler
Junior
Posts: 14
From: Detroit, Michigan USA
Registered: Nov 2009


 - posted June 02, 2010 08:21 AM      Profile for James Wheeler     Send New Private Message       Edit/Delete Post 
I think you have to tear down a good portion of the projector and have a special tool to remove and add the new worm gear. It cost around $300 to have this done, but the new gears are suppose to last a long time.

 |  IP: Logged

Mark L Barton
Jedi Master Film Handler

Posts: 621
From: Bristol, South Glos, England
Registered: Mar 2009


 - posted June 02, 2010 10:10 AM      Profile for Mark L Barton     Send New Private Message       Edit/Delete Post 
Yep, thats what I thought. I may just list the projector on Ebay as spares or repair. Damn shame as it was such a good runner.

 |  IP: Logged

Richard C Patchett
Master Film Handler

Posts: 424
From: Flint Mi 48506
Registered: Dec 2007


 - posted June 02, 2010 10:16 AM      Profile for Richard C Patchett   Author's Homepage     Send New Private Message       Edit/Delete Post 
Greetings Is the projector still running?
If so just use it until it locks up.
Ive seen worm gears with many cracks that sill run. Some over a year.
Check out my web site on worm gears At
http://www.rcsclassic16mm.com
RC

--------------------
RC’s Classic Collection
16 mm Parts & Service
Elmo, Eiki, Bell & Howell +
http://www.rcsclassic16mm.com/

 |  IP: Logged

Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007


 - posted June 02, 2010 10:43 AM      Profile for Maurice Leakey   Email Maurice Leakey   Send New Private Message       Edit/Delete Post 
Mark
My service engineer would probably charge £150 "all in". But, as Richard says "use it until it gives you trouble", this is usually wow from the sound and the two stabilising rollers "bobbing up and down".
It is certainly not a job for D.I.Y.
I live near you. Send me a PM for details of my engineer.

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

 |  IP: Logged

Mark L Barton
Jedi Master Film Handler

Posts: 621
From: Bristol, South Glos, England
Registered: Mar 2009


 - posted June 03, 2010 04:06 AM      Profile for Mark L Barton     Send New Private Message       Edit/Delete Post 
Thank you all, I think I may just sell it as spares and repairs, the fact being that the worm drive has fully detached from its metal inner.
Maurice, thank you for your offer of details of the engineer who might be able to repair the ol' girl. Can you post his details here or do you want to email me : mark dot barton at uwe dot ac dot uk....thanks to all again.

 |  IP: Logged

Simon McConway
Phenomenal Film Handler

Posts: 1085
From: Doncaster, UK
Registered: Jun 2004


 - posted June 03, 2010 06:08 AM      Profile for Simon McConway     Send New Private Message       Edit/Delete Post 
I am fortunate enough to have received training on the worm gear replacement process, from a retired B & H engineer living nearby. Until you see someone else do the job, you'll never quite get it right. The B & H service manual is useless, except for the exploded diagrams. People "think" they know everything about these machines, but until you've overhauled one fully, you haven't even touched the tip of the iceberg!

 |  IP: Logged

Mark L Barton
Jedi Master Film Handler

Posts: 621
From: Bristol, South Glos, England
Registered: Mar 2009


 - posted June 03, 2010 07:13 AM      Profile for Mark L Barton     Send New Private Message       Edit/Delete Post 
I seem to remeber an engineer at McMillans (now ceased trading) who was B&H trained etc, he mentioned that it was'nt just replacing the worm drive but re setting the claw and other synchronised items, if set wrong the film might jump or break etc etc. I don't think I will be tackling that job, and will go ahead and list the projector as spares or repairs, look out for it on the UK site. Cheers and thanks again to all.

 |  IP: Logged

Barry Johnson
Master Film Handler

Posts: 358
From: United Kingdom
Registered: Jul 2003


 - posted June 05, 2010 07:29 AM      Profile for Barry Johnson   Author's Homepage   Email Barry Johnson   Send New Private Message       Edit/Delete Post 
Try and buy an old Ampro [Wink]

--------------------
Standard8 rules!!

 |  IP: Logged

Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007


 - posted June 05, 2010 10:54 AM      Profile for Maurice Leakey   Email Maurice Leakey   Send New Private Message       Edit/Delete Post 
If you are suggesting something as old as an Ampro, why not the classic, built like a tank, Cinetechnic Debrie D16?

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

 |  IP: Logged

David Kilderry
Jedi Master Film Handler

Posts: 963
From: Melbourne, Victoria, Australia
Registered: Feb 2006


 - posted June 07, 2010 04:11 AM      Profile for David Kilderry   Author's Homepage     Send New Private Message       Edit/Delete Post 
I have worked with 16mm B & H for over 30 years and am also in contact with a former Bell and Howell technician; my advice? Use it until it stops, then buy another.

The prices of good used machines are cheap compared to the drama of a worm gear job. As Simon says, there is so much more to know about these projectors than you think. Try a charcoal case projector (don't touch grey or green unless you have to buy a 666) and you will get good worm gear life.

David

 |  IP: Logged

Michael O'Regan
Film God

Posts: 3085
From: Essex, UK
Registered: Oct 2007


 - posted June 07, 2010 04:34 AM      Profile for Michael O'Regan   Email Michael O'Regan   Send New Private Message       Edit/Delete Post 
I've come across this advice before, David, and have always meant to ask -
Why are the green B&H'S best avoided?

 |  IP: Logged

Barry Johnson
Master Film Handler

Posts: 358
From: United Kingdom
Registered: Jul 2003


 - posted June 07, 2010 05:59 AM      Profile for Barry Johnson   Author's Homepage   Email Barry Johnson   Send New Private Message       Edit/Delete Post 
Debrie,yes of course.A classis indeed and well worth considering.Old as an ampro??? My machine was only built in 1962!!! Only a baby compared to the Debrie! [Cool]

--------------------
Standard8 rules!!

 |  IP: Logged

Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007


 - posted June 07, 2010 02:55 PM      Profile for Maurice Leakey   Email Maurice Leakey   Send New Private Message       Edit/Delete Post 
Mike
The green Bell & Howell projectors are older than the later charcoal grey models.

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

 |  IP: Logged

Michael O'Regan
Film God

Posts: 3085
From: Essex, UK
Registered: Oct 2007


 - posted June 07, 2010 04:14 PM      Profile for Michael O'Regan   Email Michael O'Regan   Send New Private Message       Edit/Delete Post 
Ah, so they're undesireable from the aspect of the older worm gear?

 |  IP: Logged

Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007


 - posted June 08, 2010 01:47 AM      Profile for Maurice Leakey   Email Maurice Leakey   Send New Private Message       Edit/Delete Post 
I wouldn't call them undesirable other than the fact that they are older and so is their worm!

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

 |  IP: Logged



All times are Central  
   Close Topic    Move Topic    Delete Topic    next oldest topic   next newest topic
 - Printer-friendly view of this topic
Hop To:

Visit www.film-tech.com for free equipment manual downloads. Copyright 2003-2019 Film-Tech Cinema Systems LLC

Powered by Infopop Corporation
UBB.classicTM 6.3.1.2